Optimized encoder part a little more

Extra/Fonts/Velvet Screen Bitmap Font/velvetscreen.c

@@ -1,21 +0,0 @@
-/*
-  Fontname: Velvet Screen
-  Copyright: Created with Fony 1.4.7
-  Glyphs: 52/256
-  BBX Build Mode: 0
-*/
-const uint8_t velvetscreen[437] U8G2_FONT_SECTION("velvetscreen") = 
-  "\64\0\2\2\3\3\2\3\4\5\5\0\0\5\0\5\0\0\221\0\0\1\230 \4\200\134%\11\255tT"
-  "R\271RI(\6\252\334T\31)\7\252\134bJ\12+\7\233\345\322J\0,\5\221T\4-\5\213"
-  "f\6.\5\211T\2/\6\244\354c\33\60\10\254\354T\64\223\2\61\7\353\354\222\254\6\62\11\254l"
-  "\66J*\217\0\63\11\254l\66J\32\215\4\64\10\254l\242\34\272\0\65\11\254l\206\336h$\0\66"
-  "\11\254\354T^\61)\0\67\10\254lF\216u\4\70\11\254\354TL*&\5\71\11\254\354TL;"
-  ")\0:\6\231UR\0A\10\254\354T\34S\6B\11\254lV\34)\216\4C\11\254\354T\324\61"
-  ")\0D\10\254lV\64G\2E\10\254l\206\36z\4F\10\254l\206^\71\3G\11\254\354TN"
-  "\63)\0H\10\254l\242\34S\6I\6\251T\206\0J\10\254\354k\231\24\0K\11\254l\242J\62"
-  "\225\1L\7\254lr{\4M\11\255t\362ZI\353\0N\11\255t\362TI\356\0O\10\254\354T"
-  "\64\223\2P\11\254lV\34)g\0Q\10\254\354T\264b\12R\10\254lV\34\251\31S\11\254\354"
-  "FF\32\215\4T\7\253dVl\1U\10\254l\242\63)\0V\11\255t\262Ne\312\21W\12\255"
-  "t\262J*\251.\0X\11\254l\242L*\312\0Y\12\255tr\252\63\312(\2Z\7\253df*"
-  "\7p\10\255\364V\266\323\2q\7\255\364\216\257\5r\10\253d\242\32*\2t\6\255t\376#w\11"
-  "\255\364V\245FN\13x\6\233dR\7\0\0\0\4\377\377\0";

Software/Gravity/Gravity.ino

@@ -1,195 +1,152 @@
 #include <Wire.h>
-#include <RotaryEncoder.h>
 #include <FlexiTimer2.h>
 #include <EEPROM.h>
 #include <U8g2lib.h>
 #include <avr/wdt.h>
 #include <NeoHWSerial.h>
 
-#define VERSION "V:1.1.1"
+#include "config.h"
+#include "fonts.h"
 
-byte memCode = 'D'; //Change to different letter if you changed the data structure
-
-#define PPQN 24
-#define PULSE_LENGTH 120  //1/10ms resolution. 12ms was failing at 1ms resolution at higher bpm. 60000/200/24 = 12.5 the max pulse length at 1ms resolution for 200bpm is 11ms
-#define MAXBPM 200       //250 at 24ppqn with 5ms pulse will be 50/50 square wave
-#define MINBPM 20
-
-#define SCREEN_ADDRESS 0x3C
-
-// Rev 2+ Config
-#define ENC_BTN_PIN 14
-#define ENC_D1_PIN 17
-#define ENC_D2_PIN 4
-#define START_STOP_BTN_PIN 5
-#define SHIFT_BTN_PIN 12
-#define EXT_INPUT_PIN 2  //needs to be an interrupt pin
-#define ANALOGUE_INPUT_1_PIN A7
-#define ANALOGUE_INPUT_2_PIN A6
-const byte outsPins[6] = { 7, 8, 10, 6, 9, 11 };
-const byte clockOutPin = 3;
-bool rotateScreen = false;
-bool reverseEnc = false;
-//
-
-/* Rev 1 Config
-#define ENC_BTN_PIN 14
-#define ENC_D1_PIN 17
-#define ENC_D2_PIN 4
-#define START_STOP_BTN_PIN 5
-#define SHIFT_BTN_PIN 100
-
-#define EXT_INPUT_PIN 2 //needs to be an interrupt pin
-#define ANALOGUE_INPUT_1_PIN A2
-#define ANALOGUE_INPUT_2_PIN A1
-
-const byte clockOutPin = 13;
-const byte outsPins[6] = {6, 11, 7, 10, 8, 9};
-bool rotateScreen = true;
-*/
+#define VERSION "V:1.2A2"
 
+uint8_t memCode = '0'; //Change to different letter if you changed the data structure
 
 uint16_t CV1Calibration = 512;
 uint16_t CV2Calibration = 512;
 bool showDone = false;
 
-const int subDivs[20] = { -24, -12, -8, -6, -4, -3, -2, 1, 2, 3, 4, 5, 6, 7, 8, 16, 24, 32, 64, 128 };  //positive - divide, negative - multiply, 0 - off
+const int subDivs[] = { -24, -12, -8, -6, -4, -3, -2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 24, 32, 64, 128 };  //positive - divide, negative - multiply, 0 - off
 
-byte bpm = 130;
-byte bpmModulationChannel = 200;  //0 - CV1, 1 - CV2, 255 - OFF
-byte bpmModulationRange = 0;
+uint8_t bpm = 130;
+uint8_t bpmModulationChannel = 200;  //0 - CV1, 1 - CV2, 255 - OFF
+uint8_t bpmModulationRange = 0;
+
+enum modes {Clock, Random, Sequencer, Swing, Gate};
 
 struct channel {
-  byte mode; //0 - CLK, 1 - RND, 2 - SEQ
-  byte subDiv;
-  byte CV1Target; //0 - Off, 1 - Subdiv, 2 - RND, 3 - SeqPattern
-  byte CV1Range;
-  byte CV2Target;
-  byte CV2Range;
-  uint8_t offset; 
-  byte random;
-  byte seqPattern;
+  enum modes mode    : 3; //mv: 7. 0 - CLK, 1 - RND, 2 - SEQ, 3 - SWING, 4 - Gate
+  uint8_t subDiv     : 5; //mv: 31
+  uint8_t random     : 4; //mv: 15
+  uint8_t seqPattern : 5;
+  uint8_t CV1Target  : 3; //0 - Off, 1 - Subdiv, 2 - RND, 3 - SeqPattern
+  uint8_t CV2Target  : 3;
+  uint8_t swing   : 3;
+  uint8_t offset  : 7; //mv: 127
+  uint8_t gate    : 7;
+  bool isMute     : 1;
 };
 
-channel channels[6] = {  //array of channel settings
-  { 0, 7, 0, 0, 0, 0, 0, 0, 0 },
-  { 0, 7, 0, 0, 0, 0, 0, 0, 0 },
-  { 0, 7, 0, 0, 0, 0, 0, 0, 0 },
-  { 0, 7, 0, 0, 0, 0, 0, 0, 0 },
-  { 0, 7, 0, 0, 0, 0, 0, 0, 0 },
-  { 0, 7, 0, 0, 0, 0, 0, 0, 0 }
+channel channels[7] = {  //array of channel settings
+  { 0, 7, 0, 0, 0, 0, 0, 0, 1, 0 },
+  { 0, 7, 0, 0, 0, 0, 0, 0, 1, 0 },
+  { 0, 7, 0, 0, 0, 0, 0, 0, 1, 0 },
+  { 0, 7, 0, 0, 0, 0, 0, 0, 1, 0 },
+  { 0, 7, 0, 0, 0, 0, 0, 0, 1, 0 },
+  { 0, 7, 0, 0, 0, 0, 0, 0, 1, 0 },
+  { 0, 7, 0, 0, 0, 0, 0, 0, 1, 0 }
 };
 
-bool seqA1[16] = {1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1};
-bool seqA2[16] = {0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0};
-bool seqA3[16] = {1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0};
-bool seqA4[16] = {0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1};
-bool seqA5[16] = {0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1};
-bool seqA6[16] = {0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0};
-bool seqA7[16] = {1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0};
-bool seqA8[16] = {1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1};
-bool seqB1[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-bool seqB2[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-bool seqB3[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-bool seqB4[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-bool seqB5[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-bool seqB6[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-bool seqB7[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-bool seqB8[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-byte currentStep = 0;
-byte stepNumSelected = 0;
-bool *patternToEdit;
+struct sequence {
+  uint32_t sequence; 
+  uint8_t length : 5 ; //don't forget to add 1 where needed, values 0 - 31
+};
 
+sequence sequences[] {
+  {0b000000000000000001001000100010001, 15},
+  {0b000000000000000000000100000010000, 11},
+  {0b000000000000000000001001001001001, 6},
+  {0b000000000000000001100110011001100, 20},
+  {0b000000000000000001110111011101110, 30},
+  {0b000000000000000000101010001010100, 31},
+  {0b000000000000000000111111111011111, 15},
+  {0b000000000000000001101101110110011, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15},
+  {0b000000000000000000000000000000000, 15}
+};
 
-unsigned int channelPulseCount[6];
-unsigned int channelPulsesPerCycle[6];
-byte sixteenthPulseCount = 0;
-int playingModes[6];  // should be renamed to currentSubdivs or something. Updated from channels object on beat and with applied CV modulation
-int playingModesOld[6];
+uint8_t currentStep[7] = {0};
+int8_t stepNumSelected = 0;
+uint8_t patternToEdit;
 
-unsigned int pulsePeriod;
-bool isPlaying;// = false;
+unsigned int channelPulseCount[7];
+unsigned int channelPulsesPerCycle[7];
+uint8_t sixteenthPulseCount = 0;
+int playingModes[7];  // should be renamed to currentSubdivs or something. Updated from channels object on beat and with applied CV modulation
+int playingModesOld[7];
+
+uint16_t pulsePeriod;
+bool isPlaying;// = false; // replace with some flags like uint8_t status where 1xxxxxx isPlaying, x1xxxxx isRecording etc
 bool isRecording = false;
 bool recordToNextStep = false;
 bool MIDIClockReceived = false;
 
-unsigned int tickCount = 0;
-unsigned int pulseCount = 0;
+uint16_t tickCount = 0;
+uint16_t pulseCount = 0;
 
-byte masterClockMode = 0;  // 0 - internal, 1 - external 24ppqn, 2 - MIDI
-byte extClockPPQN = 0; // 0 - 24, 1 - 4 (1/16)
-unsigned long lastExtPulseTime = 0;
-unsigned long newExtPulseTime = 0;
+uint8_t masterClockMode = 0;  // 0 - internal, 1 - external 24ppqn, 2 - MIDI
+uint8_t extClockPPQN = 0; // 0 - 24, 1 - 4 (1/16)
+uint8_t extraChannel = 0; // 0 - off, 1 - pulse out = 7th channel
+uint32_t lastExtPulseTime = 0;
+uint32_t newExtPulseTime = 0;
 
-bool needPulseReset[6] = { true, true, true, true, true, true };
+bool needPulseReset[] = { true, true, true, true, true, true, true }; //to optimise, can be switched to uint8_t
+uint16_t gateLengthTime[] = {0, 0, 0, 0, 0, 0, 0};
+uint16_t gateCountDown[7];
+bool stepIsOdd = 1;
 
-byte displayTab = 0;
+uint8_t displayTab = 0;
 bool insideTab = false;
-byte menuItem = 0;
+uint8_t menuItem = 0;
 bool menuItemSelected = false;
-byte lastMenuItem = 3;
-byte displayScreen = 0; //0 - main, 1 - sequencer, 2 - settings
+uint8_t lastMenuItem = 3;
+uint8_t displayScreen = 0; //0 - main, 1 - sequencer, 2 - settings
+
+int16_t CV1Input = 0;
+int16_t CV2Input = 0;
 
 bool playBtnPushed = false;
 bool shiftBtnPushed = false;
-
-int CV1Input = 0;
-int CV2Input = 0;
+bool encBtnPushed;
 
 int encPositionOld = 0;
-int encDirectionOld = 0;
-unsigned long encPressedTime;
-unsigned long encReleasedTime;
-unsigned long playPressedTime;
-unsigned long playReleasedTime;
-unsigned long shiftPressedTime;
-unsigned long shiftReleasedTime;
-bool encBtnPushed;
+uint8_t encDirectionOld = 0;
+uint32_t encPressedTime;
+uint32_t encReleasedTime;
+uint32_t playPressedTime;
+uint32_t playReleasedTime;
+uint32_t shiftPressedTime;
+uint32_t shiftReleasedTime;
+
 
 int extResetCountdown;
 int extTriggerCount;
 
-//unsigned long lastInteractionTime;  // used for display timeout
+//uint32_t lastInteractionTime;  // used for display timeout
 
 U8G2_SSD1306_128X64_NONAME_2_HW_I2C u8g2(U8G2_R2, SCL, SDA, U8X8_PIN_NONE); 
-RotaryEncoder encoder(ENC_D1_PIN, ENC_D2_PIN, RotaryEncoder::LatchMode::TWO03);
-
-//Font
-const PROGMEM uint8_t velvetscreen[437] U8G2_FONT_SECTION("velvetscreen") = 
-  "\64\0\2\2\3\3\2\3\4\5\5\0\0\5\0\5\0\0\221\0\0\1\230 \4\200\134%\11\255tT"
-  "R\271RI(\6\252\334T\31)\7\252\134bJ\12+\7\233\345\322J\0,\5\221T\4-\5\213"
-  "f\6.\5\211T\2/\6\244\354c\33\60\10\254\354T\64\223\2\61\7\353\354\222\254\6\62\11\254l"
-  "\66J*\217\0\63\11\254l\66J\32\215\4\64\10\254l\242\34\272\0\65\11\254l\206\336h$\0\66"
-  "\11\254\354T^\61)\0\67\10\254lF\216u\4\70\11\254\354TL*&\5\71\11\254\354TL;"
-  ")\0:\6\231UR\0A\10\254\354T\34S\6B\11\254lV\34)\216\4C\11\254\354T\324\61"
-  ")\0D\10\254lV\64G\2E\10\254l\206\36z\4F\10\254l\206^\71\3G\11\254\354TN"
-  "\63)\0H\10\254l\242\34S\6I\6\251T\206\0J\10\254\354k\231\24\0K\11\254l\242J\62"
-  "\225\1L\7\254lr{\4M\11\255t\362ZI\353\0N\11\255t\362TI\356\0O\10\254\354T"
-  "\64\223\2P\11\254lV\34)g\0Q\10\254\354T\264b\12R\10\254lV\34\251\31S\11\254\354"
-  "FF\32\215\4T\7\253dVl\1U\10\254l\242\63)\0V\11\255t\262Ne\312\21W\12\255"
-  "t\262J*\251.\0X\11\254l\242L*\312\0Y\12\255tr\252\63\312(\2Z\7\253df*"
-  "\7p\10\255\364V\266\323\2q\7\255\364\216\257\5r\10\253d\242\32*\2t\6\255t\376#w\11"
-  "\255\364V\245FN\13x\6\233dR\7\0\0\0\4\377\377\0";
-
-const PROGMEM uint8_t stkL[569] U8G2_FONT_SECTION("stk-l") = 
-  "\25\0\4\4\4\5\2\1\6\17\27\1\0\27\0\0\0\1\77\0\0\2\34%'\17\37\313\330R#&"
-  "\32!F\14\211I\310\24!\65\204(MF\21)Cd\304\10\62b\14\215\60Vb\334\20\0/\14"
-  "\272\336\336d\244\350\263q\343\0\60\37|\377\12\32\25\17\2\35\263\253ChD\30\21bB\14\242S"
-  "\306lv\350A\10\65H\0\61\24z\337\322\60R\205\314\234\31\61F\310\270\371\177\224\42\3\62\33|"
-  "\377\216\251$*\10\35\63\66r\206\304\314`c\252\34\301\221\263|\360\300\0\63\34|\377\216)\64*"
-  "\10\35\63\66r \71\332YIr\226\306\16\221P\203\312\14\0\64 |\377\226\220AC\306\20\31B"
-  "f\310\240\21\204F\214\32\61j\304(cv\366\200\305\312\371\0\65\32}\17\307\12.\206\316\213Bj"
-  "\226\214\42JtN\315\235\42\261&\325\31\0\66\33}\17\317\251\64+\206\235\63:/\314,aA\352"
-  "\234\335\235\42\261&\325\31\0\67\23|\377\302\212\7)\347Crt\70\345\300\221\363\16\0\70 |\377"
-  "\216)\64*\10\35\263\331!\22D\310\240\62\205\206\10\11B\307lv\210\204\32Tf\0\71\32|\377"
-  "\216)\64*\10\35\263\263C$\226\250I\71_\14\42\241\6\225\31\0A\26}\17S\271Si(\31"
-  "\65d\324\210q\366\356\301w\366\273\1B$}\17\203\232%KF\221\30\66b\330\210a#\206\215\30"
-  "Eb\311&\243H\14;g\317\36\204`\261\4\0D\33}\17C\42\65KF\15\31\66b\330\210q"
-  "\366\77;\66b\24\211%j\22\1E\21|\377\302\7)\347%\42\214F\316/\37<\60I\7so"
-  "\302\37$M$}\17\203\310r\346N\245Q\263\202E\12)L\224\60Q\302\310\20#C\214\14\61\23"
-  "\306L\30s\366\335\0T\15}\17\303\7\251\206\316\377\377\12\0X)~\37\303@\203\307H\14\33B"
-  "\210\14\21RC\206\241\63h\222(I\203\346\220\15\31E\204\14!\42\303F\20;h\341\0x\24\312"
-  "\336\302 CGH\240\61E\312\14\222)\6Y\64\0\0\0\0\4\377\377\0";
   
 String version;
 
@@ -205,12 +162,22 @@ void setup() {
   pinMode(EXT_INPUT_PIN, INPUT_PULLUP);
   attachInterrupt(digitalPinToInterrupt(EXT_INPUT_PIN), externalClock, FALLING);
 
-  for (byte i = 0; i < 6; i++) {
+  for (uint8_t i = 0; i < 6; i++) {
     pinMode(outsPins[i], OUTPUT);
   }
 
   pinMode(clockOutPin, OUTPUT);
 
+
+  pinMode(ENC_D1_PIN, INPUT_PULLUP);
+  pinMode(ENC_D2_PIN, INPUT_PULLUP);
+
+  //Enabling PinChange Interrupts for the encoder 
+  //pins 17 (PC3/PCINT11) and 4 (PD4/PCINT20), ports C and D
+  PCICR |= 0b00000110;
+  PCMSK1 |= 0b00001000;
+  PCMSK2 |= 0b00010000;
+
   loadState();
 
   u8g2.begin();
@@ -219,10 +186,11 @@ void setup() {
 
   calculateCycles();
   calculateBPMTiming();
+  checkEncoderStatus();
 
   resetClocks();
 
-  FlexiTimer2::set(1, 1.0 / 10000, clock);  // 1.0/1000 = 1ms period. If other than 1ms calculateBPMTiming() might need tweaking
+  FlexiTimer2::set(1, 1.0 / 10000, clock);  // 1.0/1000 = 1ms period
   FlexiTimer2::start();
 }
 
@@ -233,6 +201,62 @@ void loop() {
   checkInputs();
 }
 
+//Encoder interrupts
+ISR (PCINT1_vect) {
+  checkEncoderStatus();
+}
+ISR (PCINT2_vect) {
+  checkEncoderStatus();
+}
+
+uint8_t encoderStatus;
+uint32_t encoderCheckTime = 0;
+uint32_t encoderTimeBetweenPulses = 0;
+bool encoderDirectionOld; //0 = -, 1 = +, Old because current direction can be determined by encoderChange
+int8_t encoderChange = 0;
+uint8_t encoderBurstCount = 0;
+
+void checkEncoderStatus() {
+  //bool pin1Status = digitalRead(ENC_D1_PIN);
+  //bool pin2Status = digitalRead(ENC_D2_PIN);
+  uint8_t newStatus = (digitalRead(ENC_D1_PIN) << 1) | digitalRead(ENC_D2_PIN);
+  switch(encoderStatus) { // encoderStatus & 0b00000011 - to check only 2 last bits
+    case 0b00:
+      if (newStatus == 0b01) {
+        encoderChange++;
+      } else if (newStatus == 0b10) {
+        encoderChange--;
+      }
+      break;
+    case 0b01:
+      if (newStatus == 0b11) {
+        encoderChange++;
+      } else if (newStatus == 0b00) {
+        encoderChange--;
+      }
+      break;
+    case 0b11:
+      if (newStatus == 0b10) {
+        encoderChange++;
+      } else if (newStatus == 0b01) {
+        encoderChange--;
+      }
+      break;
+    case 0b10:
+      if (newStatus == 0b00) {
+        encoderChange++;
+      } else if (newStatus == 0b11) {
+        encoderChange--;
+      }
+      break;
+  }
+  encoderStatus = newStatus;
+
+  uint32_t currentTime = millis();
+  encoderTimeBetweenPulses = currentTime - encoderCheckTime;
+  encoderCheckTime = currentTime;
+}
+
 void sendMIDIClock() {
   NeoSerial.write(0xF8);
 }
@@ -245,8 +269,7 @@ void sendMIDIStop() {
 
 void receiveMIDI( uint8_t msg, uint8_t status ) {
   if (masterClockMode == 2) {
-    //int msg = NeoSerial.read();
-    if (msg == 0xF8) { //Clock
+    if (msg == 0xF8) { //Clock tick
       MIDIClockReceived = true;
     } else if (msg == 0xFC) { //stop
       isPlaying = false;
@@ -263,7 +286,9 @@ void clock() {
     // Action on each pulse
     if (tickCount == 0) {
       sendTriggers();
-      digitalWrite(clockOutPin, HIGH);
+      if (!extraChannel) {
+        digitalWrite(clockOutPin, HIGH);
+      }
       sendMIDIClock();
     }
 
@@ -280,6 +305,11 @@ void clock() {
         }
         if (bpmModulationRange != 0) {
           calculateBPMTiming();
+          for (uint8_t i; i < 7; i++) {
+            if (channels[i].mode == Gate) {
+              calculateGate(i);
+            }
+          }
         }
       }
     }
@@ -290,7 +320,7 @@ void clock() {
       }
     }
 
-    if (masterClockMode == 2 && MIDIClockReceived) {  // MIDI should happen here (needs testing)
+    if (masterClockMode == 2 && MIDIClockReceived) { 
       tickCount = 0;  //to make things happen in the main clock function
       if (pulseCount < (PPQN - 1)) {
         pulseCount++;
@@ -301,12 +331,17 @@ void clock() {
     }
 
     // pull low all outputs after set pulse length
-    if (tickCount >= PULSE_LENGTH) {
-      for (byte i = 0; i < 6; i++) {
+    for (uint8_t i = 0; i < 7; i++) {
+      if (channels[i].mode != Gate && tickCount >= PULSE_LENGTH) {      //everything but gate mode
         digitalWrite(outsPins[i], LOW);
+      } else if (channels[i].mode == Gate && tickCount >= gateCountDown[i]) { //gate mode gateLengthTime[i] < pulsePeriod
+        digitalWrite(outsPins[i], LOW);
+        gateCountDown[i] = gateLengthTime[i];
+      } else if (channels[i].mode == Gate && gateCountDown[i] > pulsePeriod && tickCount == 0) {
+        gateCountDown[i] = gateCountDown[i] - pulsePeriod;
       }
-      digitalWrite(clockOutPin, LOW);
     }
+
   }
 }
 
@@ -321,7 +356,6 @@ void externalClock() {
 
     //reset cycles if there were no pulses for a while
     if ((newExtPulseTime - lastExtPulseTime) > 125) {  //125ms is 20bpm
-
       resetClocks();
     }
 
@@ -360,24 +394,22 @@ void externalClock() {
   }
 }
 
-void sendTriggers() {
+void sendTriggers() { //rename to onPulse or something
 
-  for (byte i = 0; i < 6; i++) {
+  for (uint8_t i = 0; i < (extraChannel ? 7 : 6); i++) {
     if (playingModes[i] != subDivs[channels[i].subDiv] && playingModesOld[i] != playingModes[i]) {
       needPulseReset[i] = true;
       playingModesOld[i] = playingModes[i];
     }
   }
-
-  //16th notes for sequencer
+  //16th notes for sequencer and swing
   if (sixteenthPulseCount == 0) {
-    bool *currentSeq;
-
-    for (byte i = 0; i < 6; i++) {
+    stepIsOdd = !stepIsOdd;
+    for (uint8_t i = 0; i < (extraChannel ? 7 : 6); i++) {
 
       //pattern modulation
       int seqMod = 0;
-      byte seqPattern;
+      uint8_t seqPattern;
       if (channels[i].CV2Target == 3) {
         seqMod = map(CV2Input, -1, 1024, -8, 8); //-1 and 1024 are to try to make the last step not at max value (should make the range from -7 to +7)
       } else if (channels[i].CV1Target == 3) {
@@ -395,40 +427,8 @@ void sendTriggers() {
         seqPattern = channels[i].seqPattern + seqMod;
       }
 
-      if (seqPattern == 0) {
-        currentSeq = seqA1;
-      } else if (seqPattern == 1) {
-        currentSeq = seqA2;
-      } else if (seqPattern == 2) {
-        currentSeq = seqA3;
-      } else if (seqPattern == 3) {
-        currentSeq = seqA4;
-      } else if (seqPattern == 4) {
-        currentSeq = seqA5;
-      } else if (seqPattern == 5) {
-        currentSeq = seqA6;
-      } else if (seqPattern == 6) {
-        currentSeq = seqA7;
-      } else if (seqPattern == 7) {
-        currentSeq = seqA8;
-      } else if (seqPattern == 8) {
-        currentSeq = seqB1;
-      } else if (seqPattern == 9) {
-        currentSeq = seqB2;
-      } else if (seqPattern== 10) {
-        currentSeq = seqB3;
-      } else if (seqPattern == 11) {
-        currentSeq = seqB4;
-      } else if (seqPattern == 12) {
-        currentSeq = seqB5;
-      } else if (seqPattern == 13) {
-        currentSeq = seqB6;
-      } else if (seqPattern == 14) {
-        currentSeq = seqB7;
-      } else if (seqPattern == 15) {
-        currentSeq = seqB8;
-      }
-      if (channels[i].mode == 2 && currentSeq[currentStep]) { // EXT CLOCK SEQUENCER BUG IS SOMEWHERE HERE  ????  && channelPulseCount[i] == 0  might be related to channelPulsesPerCycle not calculated in time
+      bool currentStepValue = bitRead(sequences[channels[i].seqPattern].sequence, currentStep[i]);
+      if (channels[i].mode == Sequencer && currentStepValue && !channels[i].isMute) {
         digitalWrite(outsPins[i], HIGH);
       }
     }
@@ -440,10 +440,12 @@ void sendTriggers() {
     }
   } else {
     sixteenthPulseCount = 0;
-    if (currentStep < 15) { 
-      currentStep ++;
-    } else {
-      currentStep = 0;
+    for (uint8_t i; i < 7; i++) {
+      if (channels[i].mode == Sequencer && currentStep[i] < sequences[channels[i].seqPattern].length) { 
+        currentStep[i] ++;
+      } else {
+        currentStep[i] = 0;
+      }
     }
     recordToNextStep = false;
   }
@@ -451,19 +453,22 @@ void sendTriggers() {
   //switching modes on the beat and resetting channel clock
   if (pulseCount == 0) {
     calculateCycles();
-    for (byte i = 0; i < 6; i++) {
+    for (uint8_t i = 0; i < (extraChannel ? 7 : 6); i++) {
       if (needPulseReset[i] == true) {
         channelPulseCount[i] = 0;
         needPulseReset[i] = false;
       }
+      if (channels[i].mode == Gate) {
+        calculateGate(i);
+      }
     }
   }
 
   //multiplier
-  for (byte i = 0; i < 6; i++) {
+  for (uint8_t i = 0; i < (extraChannel ? 7 : 6); i++) {
     
     //RND modulation
-    byte randMod = 0;
+    uint8_t randMod = 0;
     if (channels[i].CV1Target == 2) {
       randMod = randMod + CV1Input;
     }
@@ -473,17 +478,26 @@ void sendTriggers() {
     if (channels[i].CV1Target == 2 || channels[i].CV2Target == 2) {
       randMod = map(randMod, 0, 1023, -5, +5);
     }
-    byte randAmount = channels[i].random + randMod;
+    uint8_t randAmount = channels[i].random + randMod;
     if (randAmount > 100) {
       randAmount = 0;
     } else if (randAmount > 10) {
       randAmount = 10;
     }
 
-    if ((channels[i].mode == 0 && channelPulseCount[i] == channels[i].offset) //CLK with offset
-     || (channels[i].mode == 1 && channelPulseCount[i] == 0 && (random(10) + 1) > randAmount) //RND
-       ) {
-        digitalWrite(outsPins[i], HIGH);
+    if (!channels[i].isMute) {
+      if ((channels[i].mode == Swing && channelPulseCount[i] == 0 && stepIsOdd == 0)
+      || (channels[i].mode == Swing && channelPulseCount[i] == channels[i].swing && stepIsOdd == 1) //swing 
+        ) {
+          digitalWrite(outsPins[i], HIGH);
+      }
+
+      if ((channels[i].mode == Clock && channelPulseCount[i] == channels[i].offset) //CLK with offset
+      || (channels[i].mode == Random && channelPulseCount[i] == 0 && (random(10) + 1) > randAmount) //RND
+      || (channels[i].mode == Gate && channelPulseCount[i] == 0) //Gate
+        ) {
+          digitalWrite(outsPins[i], HIGH);
+      }
     }
     if (channelPulseCount[i] < channelPulsesPerCycle[i]) {
       channelPulseCount[i]++;
@@ -491,12 +505,11 @@ void sendTriggers() {
       channelPulseCount[i] = 0;
     }
   }
-
 }
 
 void calculateCycles() {
 
-  for (byte i = 0; i < 6; i++) {
+  for (uint8_t i = 0; i < (extraChannel ? 7 : 6); i++) {
     int mod = 0; //subdiv modulation happens here
     if (channels[i].CV1Target == 1) { 
       mod = map(CV1Input, -1, 1024, -5, 5);
@@ -505,17 +518,24 @@ void calculateCycles() {
     }
     playingModes[i] = subDivs[channels[i].subDiv - mod];  //subtracting because the innitial array is backwards
 
-    if (channels[i].mode == 2) { //Sequencer plays 1/16th
+    if (channels[i].mode == Sequencer || channels[i].mode == Swing) { //Sequencer and swing plays 1/16th
       channelPulsesPerCycle[i] = (PPQN / 4) - 1;
     } else if (playingModes[i] > 0) {
       channelPulsesPerCycle[i] = (playingModes[i] * PPQN) - 1;
     } else if (playingModes[i] < 0)  {
       channelPulsesPerCycle[i] = (PPQN / abs(playingModes[i])) - 1;
     }
-
   }
 }
 
+void calculateGate(uint8_t channel) {
+  //if (subDivs[channels[channel].subDiv] > 0) {
+    gateLengthTime[channel] = ((channelPulsesPerCycle[channel] + 1) * (pulsePeriod + 1) / 100) * channels[channel].gate; 
+    gateCountDown[channel] = gateLengthTime[channel];
+  //}
+}
+
+
 void calculateBPMTiming() {
   int mod = 0;
   if (masterClockMode == 0) {  //Internal clock
@@ -524,28 +544,31 @@ void calculateBPMTiming() {
     } else if (bpmModulationRange != 0 && bpmModulationChannel == 1) {
       mod = map(CV2Input, 0, 1023, bpmModulationRange * -10, bpmModulationRange * 10);
     }
-    byte calcbpm = bpm + mod;
+    uint8_t calcbpm = bpm + mod;
     if (calcbpm > MAXBPM) { calcbpm = MAXBPM; };
-    pulsePeriod = 600000 / (calcbpm * PPQN);
+    pulsePeriod = 600000 / (calcbpm * PPQN); // 600000.0 / ((float)(calcbpm * PPQN)) - floats eat up ~2% of program memory, but are they more precise? need to measure
 
-  } else if (masterClockMode == 1 && extClockPPQN == 1) {  //for ext 1/16 clock (hardcoded)
-    pulsePeriod = (newExtPulseTime - lastExtPulseTime) / 6;
+  } else if (masterClockMode == 1 && extClockPPQN == 1) {  //for ext 1/16 clock
+    pulsePeriod = (newExtPulseTime - lastExtPulseTime) * 10 / 6;
   }
 }
 
 void resetClocks() {
-  for (byte i = 0; i < 6; i++) {
+  for (uint8_t i = 0; i < (extraChannel ? 7 : 6); i++) {
     channelPulseCount[i] = 0;
     digitalWrite(outsPins[i], LOW);  //to avoid stuck leds
   }
   pulseCount = 0;
   tickCount = 0;
   sixteenthPulseCount = 0;
-  currentStep = 0;
+  for (uint8_t i; i <  7; i++) {
+    currentStep[i] = 0;
+  }
+  stepIsOdd = 1;
 }
 
 void saveState() {
-  int addr = 0;
+  uint16_t addr = 0;
   EEPROM.put(addr, bpm);
   addr = addr + sizeof(bpm);
   EEPROM.put(addr, bpmModulationChannel);
@@ -556,38 +579,8 @@ void saveState() {
   addr = addr + sizeof(masterClockMode);
   EEPROM.put(addr, channels);
   addr = addr + sizeof(channels);
-  EEPROM.put(addr, seqA1);
-  addr = addr + sizeof(seqA1);
-  EEPROM.put(addr, seqA2);
-  addr = addr + sizeof(seqA2);
-  EEPROM.put(addr, seqA3);
-  addr = addr + sizeof(seqA3);
-  EEPROM.put(addr, seqA4);
-  addr = addr + sizeof(seqA4);
-  EEPROM.put(addr, seqA5);
-  addr = addr + sizeof(seqA5);
-  EEPROM.put(addr, seqA6);
-  addr = addr + sizeof(seqA6);
-  EEPROM.put(addr, seqA7);
-  addr = addr + sizeof(seqA7);
-  EEPROM.put(addr, seqA8);
-  addr = addr + sizeof(seqA8);
-  EEPROM.put(addr, seqB1);
-  addr = addr + sizeof(seqB1);
-  EEPROM.put(addr, seqB2);
-  addr = addr + sizeof(seqB2);
-  EEPROM.put(addr, seqB3);
-  addr = addr + sizeof(seqB3);
-  EEPROM.put(addr, seqB4);
-  addr = addr + sizeof(seqB4);
-  EEPROM.put(addr, seqB5);
-  addr = addr + sizeof(seqB5);
-  EEPROM.put(addr, seqB6);
-  addr = addr + sizeof(seqB6);
-  EEPROM.put(addr, seqB7);
-  addr = addr + sizeof(seqB7);
-  EEPROM.put(addr, seqB8);
-  addr = addr + sizeof(seqB8);
+  EEPROM.put(addr, sequences);
+  addr = addr + sizeof(sequences);
   EEPROM.put(addr, CV1Calibration);
   addr = addr + sizeof(CV1Calibration);
   EEPROM.put(addr, CV2Calibration);
@@ -597,12 +590,14 @@ void saveState() {
   EEPROM.put(addr, extClockPPQN);
   addr = addr + sizeof(extClockPPQN);
   EEPROM.put(addr, reverseEnc);
+  addr = addr + sizeof(reverseEnc);
+  EEPROM.put(addr, extraChannel);
 }
 
-void loadState() {
+void loadState() { //optimisation: try to make an abstraction that can take an array (of pointers?) of settings to be loaded/saved 
   //check last bit in eeprom to know if the correct settings were stored
   if (EEPROM.read(1023) == memCode) {
-    int addr = 0;
+    uint16_t addr = 0;
     EEPROM.get(addr, bpm);
     addr = addr + sizeof(bpm);
     EEPROM.get(addr, bpmModulationChannel);
@@ -613,38 +608,8 @@ void loadState() {
     addr = addr + sizeof(masterClockMode);
     EEPROM.get(addr, channels);
     addr = addr + sizeof(channels);
-    EEPROM.get(addr, seqA1);
-    addr = addr + sizeof(seqA1);
-    EEPROM.get(addr, seqA2);
-    addr = addr + sizeof(seqA2);
-    EEPROM.get(addr, seqA3);
-    addr = addr + sizeof(seqA3);
-    EEPROM.get(addr, seqA4);
-    addr = addr + sizeof(seqA4);
-    EEPROM.get(addr, seqA5);
-    addr = addr + sizeof(seqA5);
-    EEPROM.get(addr, seqA6);
-    addr = addr + sizeof(seqA6);
-    EEPROM.get(addr, seqA7);
-    addr = addr + sizeof(seqA7);
-    EEPROM.get(addr, seqA8);
-    addr = addr + sizeof(seqA8);
-    EEPROM.get(addr, seqB1);
-    addr = addr + sizeof(seqB1);
-    EEPROM.get(addr, seqB2);
-    addr = addr + sizeof(seqB2);
-    EEPROM.get(addr, seqB3);
-    addr = addr + sizeof(seqB3);
-    EEPROM.get(addr, seqB4);
-    addr = addr + sizeof(seqB4);
-    EEPROM.get(addr, seqB5);
-    addr = addr + sizeof(seqB5);
-    EEPROM.get(addr, seqB6);
-    addr = addr + sizeof(seqB6);
-    EEPROM.get(addr, seqB7);
-    addr = addr + sizeof(seqB7);
-    EEPROM.get(addr, seqB8);
-    addr = addr + sizeof(seqB8);
+    EEPROM.get(addr, sequences);
+    addr = addr + sizeof(sequences);
     EEPROM.get(addr, CV1Calibration);
     addr = addr + sizeof(CV1Calibration);
     EEPROM.get(addr, CV2Calibration);
@@ -654,6 +619,8 @@ void loadState() {
     EEPROM.get(addr, extClockPPQN);
     addr = addr + sizeof(extClockPPQN);
     EEPROM.get(addr, reverseEnc);
+    addr = addr + sizeof(reverseEnc);
+    EEPROM.get(addr, extraChannel);
   } else {
     saveState(); //write default values to EEPROM
     EEPROM.write(1023, memCode);

Software/Gravity/Interactions.ino

@@ -12,40 +12,8 @@ void checkInputs() {
     } else if (encReleasedTime - encPressedTime <= 300) {  // press shorter than .3s is for entering the submenu
       if (!insideTab && displayScreen == 0) {
         insideTab = true;
-      } else if (insideTab && channels[displayTab - 1].mode == 2 && menuItem == 2 && displayScreen == 0) { //enter the pattern editor
-        if (channels[displayTab - 1].seqPattern == 0) {
-          patternToEdit = seqA1;
-        } else if (channels[displayTab - 1].seqPattern == 1) {
-          patternToEdit = seqA2;
-        } else if (channels[displayTab - 1].seqPattern == 2) {
-          patternToEdit = seqA3;
-        } else if (channels[displayTab - 1].seqPattern == 3) {
-          patternToEdit = seqA4;
-        } else if (channels[displayTab - 1].seqPattern == 4) {
-          patternToEdit = seqA5;
-        } else if (channels[displayTab - 1].seqPattern == 5) {
-          patternToEdit = seqA6;
-        } else if (channels[displayTab - 1].seqPattern == 6) {
-          patternToEdit = seqA7;
-        } else if (channels[displayTab - 1].seqPattern == 7) {
-          patternToEdit = seqA8;
-        } else if (channels[displayTab - 1].seqPattern == 8) {
-          patternToEdit = seqB1;
-        } else if (channels[displayTab - 1].seqPattern == 9) {
-          patternToEdit = seqB2;
-        } else if (channels[displayTab - 1].seqPattern == 10) {
-          patternToEdit = seqB3;
-        } else if (channels[displayTab - 1].seqPattern == 11) {
-          patternToEdit = seqB4;
-        } else if (channels[displayTab - 1].seqPattern == 12) {
-          patternToEdit = seqB5;
-        } else if (channels[displayTab - 1].seqPattern == 13) {
-          patternToEdit = seqB6;
-        } else if (channels[displayTab - 1].seqPattern == 14) {
-          patternToEdit = seqB7;
-        } else if (channels[displayTab - 1].seqPattern == 15) {
-          patternToEdit = seqB8;
-        }
+      } else if (insideTab && channels[displayTab - 1].mode == Sequencer && menuItem == 2 && displayScreen == 0) { //enter the pattern editor
+        patternToEdit = channels[displayTab - 1].seqPattern;
         displayScreen = 1;
         isRecording = 0;
       } else if (insideTab && displayScreen == 0)  {
@@ -67,6 +35,9 @@ void checkInputs() {
         showDone = true;
         updateScreen();
       } else if (displayScreen == 2 && menuItem == 3) {
+        extraChannel = !extraChannel;
+        updateScreen();
+      } else if (displayScreen == 2 && menuItem == 4) {
         EEPROM.put(1023, memCode - 1);
         reboot();
       }
@@ -74,7 +45,9 @@ void checkInputs() {
       if (menuItemSelected == 1) {
         menuItemSelected = 0;
       } else if (displayScreen != 0) {
+        menuItem = 0;
         displayScreen = 0;
+        menuItemSelected = 0;
       } else if (insideTab == 1) {
         insideTab = 0;
         menuItem = 0;
@@ -88,37 +61,40 @@ void checkInputs() {
   }
 
   //encoder
-  encoder.tick();
-  int encPosition = encoder.getPosition();
-  int encDirection = (int)(encoder.getDirection());
-  if (encPositionOld != encPosition) {
-    int change = encPositionOld - encPosition;
-    if (reverseEnc) {
-      change = change * -1;
+  if (encoderChange != 0) {
+    if (!reverseEnc) {
+      encoderChange = encoderChange * -1;
     }
-    unsigned long ms = encoder.getMillisBetweenRotations();
-    /*if (encDirectionOld == encDirection && ms < 20) { //encoder acceleration
-      change = change * 5;
-    } else if (encDirectionOld == encDirection && ms < 80) {
-      change = change * 2;
-    } else */ if (encDirectionOld != encDirection && ms < 200) { //filter out encoder "jumps"
-      change = 0;
+
+    /*if (((encoderChange > 0) != encoderDirectionOld) && encoderTimeBetweenPulses < 150) { //filter out encoder "jumps". Comented out 
+      encoderChange = 0;                                                                    //because it seems like sometimes it was preventing normal scroll
+    }                                                                                       //if it works ok without it delete encoderDirectionOld var altogether
+    encoderDirectionOld = (encoderChange > 0);*/
+
+    //encoder acceleration
+    if (encoderTimeBetweenPulses < 15) {    // <--
+      encoderBurstCount++;
+    } else {
+      encoderBurstCount = 0;
     }
-    encDirectionOld = encDirection;
+    if (encoderBurstCount > 3) {            // <--
+      encoderChange = encoderChange * 3;    // <-- The three params need to be finetuned to feel natural
+    }
+
     if (displayScreen == 0) {
-      byte channelCV;
+      uint8_t channelCV;
       if (!insideTab && !shiftBtnPushed) { //Change tab
-        displayTab = displayTab + change;
+        displayTab = displayTab + encoderChange;
         if (displayTab > 100) { //to address "negative" numbers
           displayTab = 0;
-        } else if (displayTab > 6) {
-          displayTab = 6;
+        } else if (displayTab > (extraChannel ? 7 : 6)) {
+          displayTab = (extraChannel ? 7 : 6);
         }
       } else if (((!insideTab && shiftBtnPushed)  
                    || (insideTab && menuItem == 0
                        && (menuItemSelected || shiftBtnPushed))) 
                  && displayTab == 0 && masterClockMode == 0) { //Change BPM
-        bpm = bpm + change;
+        bpm = bpm + encoderChange;
         if (bpm > MAXBPM) {
           bpm = MAXBPM;
         } else if (bpm < MINBPM) {
@@ -130,13 +106,13 @@ void checkInputs() {
                    || (insideTab && menuItem == 0 
                        && (menuItemSelected || shiftBtnPushed))) 
                 && displayTab != 0 
-                && channels[displayTab - 1].mode == 0) { 
-        channels[displayTab - 1].subDiv = channels[displayTab - 1].subDiv - change;
+                && channels[displayTab - 1].mode == Clock) { 
+        channels[displayTab - 1].subDiv = channels[displayTab - 1].subDiv - encoderChange;
         //channels[displayTab - 1].offset = 0;
         if (channels[displayTab - 1].subDiv > 100) { 
           channels[displayTab - 1].subDiv = 0;
-        } if (channels[displayTab - 1].subDiv > (sizeof(subDivs) / sizeof(int)) - 1) {
-          channels[displayTab - 1].subDiv = (sizeof(subDivs) / sizeof(int)) - 1;
+        } if (channels[displayTab - 1].subDiv > (sizeof(subDivs) / sizeof(subDivs[0])) - 1) {
+          channels[displayTab - 1].subDiv = (sizeof(subDivs) / sizeof(subDivs[0])) - 1;
         }
         if (!isPlaying) {
           calculateCycles();
@@ -155,8 +131,8 @@ void checkInputs() {
                    || (insideTab && menuItem == 0 
                        && (menuItemSelected || shiftBtnPushed))) 
                 && displayTab != 0 
-                && channels[displayTab - 1].mode == 1) { //Change Random
-        channels[displayTab - 1].random = channels[displayTab - 1].random + change;
+                && channels[displayTab - 1].mode == Random) { //Change Random
+        channels[displayTab - 1].random = channels[displayTab - 1].random + encoderChange;
         if (channels[displayTab - 1].random > 100) {
           channels[displayTab - 1].random = 0;
         } else if (channels[displayTab - 1].random > 9) {
@@ -167,16 +143,42 @@ void checkInputs() {
                    || (insideTab && menuItem == 0 
                        && (menuItemSelected || shiftBtnPushed))) 
                 && displayTab != 0 
-                && channels[displayTab - 1].mode == 2) { //Change SEQ pattern
-        channels[displayTab - 1].seqPattern = channels[displayTab - 1].seqPattern + change;
-        if (channels[displayTab - 1].seqPattern > 100) {
+                && channels[displayTab - 1].mode == Sequencer) { //Change SEQ pattern
+        if (channels[displayTab - 1].seqPattern == 0 && encoderChange == -1) {
           channels[displayTab - 1].seqPattern = 0;
-        } else if (channels[displayTab - 1].seqPattern > 15) {
-          channels[displayTab - 1].seqPattern = 15;
+        } else if (channels[displayTab - 1].seqPattern == 31 && encoderChange == 1) {
+          channels[displayTab - 1].seqPattern = 31;
+        } else {
+          channels[displayTab - 1].seqPattern = channels[displayTab - 1].seqPattern + encoderChange;
         }
         saveState();
+      } else if (((!insideTab && shiftBtnPushed) 
+                   || (insideTab && menuItem == 0 
+                       && (menuItemSelected || shiftBtnPushed))) 
+                && displayTab != 0 
+                && channels[displayTab - 1].mode == Swing) { //Change SWING
+        channels[displayTab - 1].swing = channels[displayTab - 1].swing + encoderChange;
+        if (channels[displayTab - 1].swing > 6) {
+          channels[displayTab - 1].swing = 0;
+        } else if (channels[displayTab - 1].swing > 5) {
+          channels[displayTab - 1].swing = 5;
+        }
+        saveState();
+      } else if (((!insideTab && shiftBtnPushed) 
+                   || (insideTab && menuItem == 0 
+                       && (menuItemSelected || shiftBtnPushed))) 
+                && displayTab != 0 
+                && channels[displayTab - 1].mode == Gate) { //Change GATE
+        channels[displayTab - 1].gate = channels[displayTab - 1].gate + encoderChange;
+        if (channels[displayTab - 1].gate > 100 || channels[displayTab - 1].gate == 0) {
+          channels[displayTab - 1].gate = 1;
+        } else if (channels[displayTab - 1].gate > 99) {
+          channels[displayTab - 1].gate = 99;
+        }
+        calculateGate(displayTab - 1);
+        saveState();
       } else if (insideTab && !shiftBtnPushed && !menuItemSelected) {
-        menuItem = menuItem + change;
+        menuItem = menuItem + encoderChange;
         if (menuItem > 100) { //for "negative" values 
           menuItem = 0;
         } else if (menuItem > lastMenuItem) { 
@@ -186,14 +188,14 @@ void checkInputs() {
                  && (shiftBtnPushed || menuItemSelected)
                  && displayTab == 0 
                  && menuItem == 1) { //Master Clock Mode
-        if (masterClockMode == 1) { // && change == -1) { //Stop when switching from ext to int or to midi
+        if (masterClockMode == 1) { // && encoderChange == -1) { //Stop when switching from ext to int or to midi
           isPlaying = false;
         }
         
-        masterClockMode = masterClockMode + change;
+        masterClockMode = masterClockMode + encoderChange;
         if (masterClockMode > 100) {
           masterClockMode = 0;
-        } else if (masterClockMode > 2) { //Set to 1 to hide MIDI mode
+        } else if (masterClockMode > 2) {
           masterClockMode = 2;
         }
         saveState();
@@ -202,7 +204,7 @@ void checkInputs() {
                  && displayTab == 0 
                  && menuItem == 2
                  && masterClockMode == 0) { //Modulation channel
-        bpmModulationChannel = bpmModulationChannel + change;
+        bpmModulationChannel = bpmModulationChannel + encoderChange;
         if (bpmModulationChannel == 0 || bpmModulationChannel == 1) {
           bpmModulationRange = 1;
         } else if (bpmModulationChannel > 100) {
@@ -217,7 +219,7 @@ void checkInputs() {
                  && displayTab == 0 
                  && menuItem == 2
                  && masterClockMode == 1) { //PPQN
-        extClockPPQN = extClockPPQN + change;
+        extClockPPQN = extClockPPQN + encoderChange;
         if (extClockPPQN > 100) {
           extClockPPQN = 0;
         } else if (extClockPPQN > 1) {
@@ -228,7 +230,7 @@ void checkInputs() {
                  && (menuItemSelected || shiftBtnPushed) 
                  && displayTab == 0 
                  && menuItem == 3) { //Modulation range
-        bpmModulationRange = bpmModulationRange + change;
+        bpmModulationRange = bpmModulationRange + encoderChange;
         if (bpmModulationRange == 0) {
           bpmModulationRange = 1;
         } else if (bpmModulationRange > 100) {
@@ -241,11 +243,11 @@ void checkInputs() {
                  && (menuItemSelected || shiftBtnPushed) 
                  && displayTab != 0 
                  && menuItem == 1) { //Channel Mode
-        channels[displayTab - 1].mode = channels[displayTab - 1].mode + change;
-        if (channels[displayTab - 1].mode > 100) {
+        channels[displayTab - 1].mode = channels[displayTab - 1].mode + encoderChange;
+        if (channels[displayTab - 1].mode == 7) {
+          channels[displayTab - 1].mode = 4; //to make it cycle through all the modes
+        } else if (channels[displayTab - 1].mode > 4) {
           channels[displayTab - 1].mode = 0;
-        } else if (channels[displayTab - 1].mode > 2) {
-          channels[displayTab - 1].mode = 2;
         }
         channels[displayTab - 1].CV1Target = 0;
         channels[displayTab - 1].CV2Target = 0;
@@ -253,8 +255,8 @@ void checkInputs() {
       } else if (insideTab 
                  && (menuItemSelected || shiftBtnPushed) 
                  && displayTab != 0 && menuItem == 2 
-                 && channels[displayTab - 1].mode == 0) { //Offset
-        channels[displayTab - 1].offset = channels[displayTab - 1].offset + change;
+                 && channels[displayTab - 1].mode == Clock) { //Offset
+        channels[displayTab - 1].offset = channels[displayTab - 1].offset + encoderChange;
         if (channels[displayTab - 1].offset == 255) { // 0 - 1 for uint8 is 255
           channels[displayTab - 1].offset = 0;
         } else if (channels[displayTab - 1].offset > channelPulsesPerCycle[displayTab-1]) {
@@ -265,12 +267,12 @@ void checkInputs() {
                  && (menuItemSelected || shiftBtnPushed) 
                  && displayTab != 0 
                  && menuItem == 2 
-                 && channels[displayTab - 1].mode == 1) { //SUBDIV for RANDOM
-        channels[displayTab - 1].subDiv = channels[displayTab - 1].subDiv - change;
+                 && (channels[displayTab - 1].mode == Random || channels[displayTab - 1].mode == Gate)) { //SUBDIV for RANDOM and GATE
+        channels[displayTab - 1].subDiv = channels[displayTab - 1].subDiv - encoderChange;
         if (channels[displayTab - 1].subDiv > 200) { 
           channels[displayTab - 1].subDiv = 0;
-        } else if (channels[displayTab - 1].subDiv > (sizeof(subDivs) / sizeof(int)) - 1) {
-          channels[displayTab - 1].subDiv = (sizeof(subDivs) / sizeof(int)) - 1;
+        } else if (channels[displayTab - 1].subDiv > (sizeof(subDivs) / sizeof(subDivs[0])) - 1) {
+          channels[displayTab - 1].subDiv = (sizeof(subDivs) / sizeof(subDivs[0])) - 1;
         }
         if (!isPlaying) {
           calculateCycles();
@@ -280,7 +282,7 @@ void checkInputs() {
                  && (menuItemSelected || shiftBtnPushed) 
                  && displayTab != 0 
                  && menuItem == 3 
-                 && channels[displayTab - 1].mode == 0) { //CV for CLK
+                 && channels[displayTab - 1].mode == Clock) { //CV for CLK
         if (channels[displayTab - 1].CV1Target == 1 && channels[displayTab - 1].CV2Target == 0) {
           channelCV = 1;
         } else if (channels[displayTab - 1].CV1Target == 0 && channels[displayTab - 1].CV2Target == 1) {
@@ -288,7 +290,7 @@ void checkInputs() {
         } else {
           channelCV = 0;
         }
-        channelCV = channelCV + change;
+        channelCV = channelCV + encoderChange;
         if (channelCV == 0 || channelCV > 100) {
           channelCV = 0;
           channels[displayTab - 1].CV1Target = 0;
@@ -302,7 +304,7 @@ void checkInputs() {
           channels[displayTab - 1].CV2Target = 1;
         }
         saveState();
-      } else if (insideTab && (menuItemSelected || shiftBtnPushed) && displayTab != 0 && menuItem == 3 && channels[displayTab - 1].mode == 1) { //CV for RND
+      } else if (insideTab && (menuItemSelected || shiftBtnPushed) && displayTab != 0 && menuItem == 3 && channels[displayTab - 1].mode == Random) { //CV for RND
         if (channels[displayTab - 1].CV1Target == 2 && channels[displayTab - 1].CV2Target == 0) {
           channelCV = 1;
         } else if (channels[displayTab - 1].CV1Target == 0 && channels[displayTab - 1].CV2Target == 2) {
@@ -310,7 +312,7 @@ void checkInputs() {
         } else {
           channelCV = 0;
         }
-        channelCV = channelCV + change;
+        channelCV = channelCV + encoderChange;
         if (channelCV == 0 || channelCV > 100) {
           channelCV = 0;
           channels[displayTab - 1].CV1Target = 0;
@@ -324,7 +326,7 @@ void checkInputs() {
           channels[displayTab - 1].CV2Target = 2;
         }
         saveState();
-      } else if (insideTab && (menuItemSelected || shiftBtnPushed) && displayTab != 0 && menuItem == 3 && channels[displayTab - 1].mode == 2) { //CV1 for SEQ
+      } else if (insideTab && (menuItemSelected || shiftBtnPushed) && displayTab != 0 && menuItem == 3 && channels[displayTab - 1].mode == Sequencer) { //CV1 for SEQ
         if (channels[displayTab - 1].CV1Target == 3 && channels[displayTab - 1].CV2Target == 0) {
           channelCV = 1;
         } else if (channels[displayTab - 1].CV1Target == 0 && channels[displayTab - 1].CV2Target == 3) {
@@ -332,7 +334,7 @@ void checkInputs() {
         } else {
           channelCV = 0;
         }
-        channelCV = channelCV + change;
+        channelCV = channelCV + encoderChange;
         if (channelCV == 0 || channelCV > 100) {
           channelCV = 0;
           channels[displayTab - 1].CV1Target = 0;
@@ -347,15 +349,20 @@ void checkInputs() {
         }
         saveState();
       } 
-    } else if (displayScreen == 1 && !isRecording) {
-      stepNumSelected = stepNumSelected + change;
-      if (stepNumSelected > 100) {
-        stepNumSelected = 15;
-      } else if (stepNumSelected > 15) {
+    } else if (displayScreen == 1 && !isRecording && !shiftBtnPushed) {
+      stepNumSelected = stepNumSelected + encoderChange;
+      if (stepNumSelected < -1  ) {
+        stepNumSelected = -1;
+      } else if (stepNumSelected > sequences[channels[displayTab - 1].seqPattern].length  && !shiftBtnPushed) {
         stepNumSelected = 0;
       } 
+    } else if (displayScreen == 1 && !isRecording && stepNumSelected == -1 && shiftBtnPushed) {
+        if ((sequences[channels[displayTab - 1].seqPattern].length != 31 && encoderChange > 0) || 
+            (sequences[channels[displayTab - 1].seqPattern].length != 0 && encoderChange < 0)) {
+            sequences[channels[displayTab - 1].seqPattern].length += encoderChange;
+        }
     } else if (displayScreen == 2 && !shiftBtnPushed) {
-      menuItem = menuItem + change;
+      menuItem = menuItem + encoderChange;
       if (menuItem > 100) { //for "negative" values 
         menuItem = 0;
       } else if (menuItem > lastMenuItem) { 
@@ -364,19 +371,20 @@ void checkInputs() {
     }
 
     updateScreen();
-    encPositionOld = encPosition;
+    encoderChange = 0;
   }
 
   //play button
-  if (!digitalRead(START_STOP_BTN_PIN) && !playBtnPushed) {
+  if (!digitalRead(START_STOP_BTN_PIN) && !playBtnPushed && !shiftBtnPushed) {
     if (masterClockMode == 0) {
       calculateBPMTiming();
-      resetClocks();
       if (!isPlaying) {
+        resetClocks();
         isPlaying = true;
         sendMIDIStart();
       } else {
         isPlaying = false;
+        resetClocks();
         sendMIDIStop();
       }
     }
@@ -386,6 +394,15 @@ void checkInputs() {
     playBtnPushed = false;
   }
 
+  //shift + play = mute channel
+  if (!digitalRead(START_STOP_BTN_PIN) && !playBtnPushed && shiftBtnPushed) {
+    channels[displayTab - 1].isMute = !channels[displayTab - 1].isMute;
+    playBtnPushed = true;
+    updateScreen();  //to wake up the screen if turned off
+  } else if (digitalRead(START_STOP_BTN_PIN) && playBtnPushed) {
+    playBtnPushed = false;
+  }
+
   //shift button
   if (!digitalRead(SHIFT_BTN_PIN) && !shiftBtnPushed) {
     shiftBtnPushed = true;
@@ -393,24 +410,22 @@ void checkInputs() {
     if (isRecording) { //Live triggering
       digitalWrite(outsPins[displayTab - 1], HIGH);
     }
-    if (displayScreen == 1 && !isRecording) {
-      patternToEdit[stepNumSelected] = !patternToEdit[stepNumSelected];
+    if (displayScreen == 1 && !isRecording && stepNumSelected <= sequences[patternToEdit].length && stepNumSelected != -1) {
+      sequences[patternToEdit].sequence = bitFlip(sequences[patternToEdit].sequence, stepNumSelected);
     } else if (displayScreen == 1 && isRecording && !recordToNextStep) { //Recording
-      patternToEdit[currentStep] = 1;
+      bitSet(sequences[patternToEdit].sequence, currentStep[displayTab - 1]);
     } else if (displayScreen == 1 && isRecording && recordToNextStep && currentStep != 15) {
-      patternToEdit[currentStep+1] = 1;
+      bitSet(sequences[patternToEdit].sequence, currentStep[displayTab - 1] + 1);
     } else if (displayScreen == 1 && isRecording && recordToNextStep && currentStep == 15) {
-      patternToEdit[0] = 1;
+      bitSet(sequences[patternToEdit].sequence, 0);
     }
     saveState();
     updateScreen(); 
   } else if (digitalRead(SHIFT_BTN_PIN) && shiftBtnPushed) {
     shiftBtnPushed = false;
     shiftReleasedTime = millis();
-    if (displayScreen == 1 && shiftReleasedTime - shiftPressedTime > 500 && !encBtnPushed) { //&& shiftReleasedTime - shiftPressedTime < 2000 //Clear the sequence
-      for (byte i = 0; i < 16; i++) {
-        patternToEdit[i] = 0;
-      }
+    if (displayScreen == 1 && shiftReleasedTime - shiftPressedTime > 1000 && !encBtnPushed && stepNumSelected != -1) { //&& shiftReleasedTime - shiftPressedTime < 2000 //Clear the sequence
+      sequences[patternToEdit].sequence = 0b000000000000000000000000000000000;
     } else if (shiftReleasedTime - shiftPressedTime > 2000 && encBtnPushed) {
       displayScreen = 2;
       menuItemSelected = 1; //hack to prevent from going back when the encoder is released

Software/Gravity/UI.ino

@@ -2,8 +2,8 @@ void updateScreen() {
   
   u8g2.firstPage();
   do {
-    byte leftOffset;
-    byte width;
+    uint8_t leftOffset;
+    uint8_t width;
     String valueStr;
     u8g2.setDrawColor(1);
 
@@ -11,7 +11,7 @@ void updateScreen() {
       //BPM Tab
       if (displayTab == 0) { //BPM
 
-        u8g2.setFont(velvetscreen);
+        u8g2.setFont(stkS);
 
         //Menu items
         lastMenuItem = 4;
@@ -27,7 +27,7 @@ void updateScreen() {
           lastMenuItem = 1;
         }
 
-        for (byte i = 1; i <= lastMenuItem; i++) {
+        for (uint8_t i = 1; i <= lastMenuItem; i++) {
           if (i == 1) {
             valueStr = F("MODE:");
           } else if (i == 2 && masterClockMode == 0) {
@@ -48,7 +48,7 @@ void updateScreen() {
         }
 
         //Values
-        for (byte i = 1; i <= lastMenuItem; i++) {
+        for (uint8_t i = 1; i <= lastMenuItem; i++) {
           if (i == 1 && masterClockMode == 0) {   //Channel mode
             valueStr = F("INT");
           } else if (i == 1 && masterClockMode == 1) {
@@ -91,19 +91,19 @@ void updateScreen() {
           if ((!insideTab && !shiftBtnPushed) || (insideTab && menuItem != 0)) { //default view, nothing is selected or editable
             u8g2.setFont(stkL);
             u8g2.drawButtonUTF8(leftOffset-1, 28, U8G2_BTN_BW0|U8G2_BTN_HCENTER, width,  0,  3, valueStr.c_str() );
-            u8g2.setFont(velvetscreen);
+            u8g2.setFont(stkS);
             valueStr = F("BPM");
             u8g2.drawButtonUTF8(leftOffset, 40, U8G2_BTN_BW0|U8G2_BTN_HCENTER, width,  0,  2, valueStr.c_str() );
           } else if ((!insideTab && shiftBtnPushed) || (insideTab && menuItem == 0 && (menuItemSelected || shiftBtnPushed))) { //show value as editable
             u8g2.setFont(stkL);
             u8g2.drawButtonUTF8(leftOffset-1, 28, U8G2_BTN_BW1|U8G2_BTN_HCENTER, width,  0,  3, valueStr.c_str() );
-            u8g2.setFont(velvetscreen);
+            u8g2.setFont(stkS);
             valueStr = F("BPM");
             u8g2.drawButtonUTF8(leftOffset, 40, U8G2_BTN_BW1|U8G2_BTN_INV|U8G2_BTN_HCENTER, width,  0,  2, valueStr.c_str() );
           } else if (insideTab && menuItem == 0 && !menuItemSelected) { //show as selected menu item
             u8g2.setFont(stkL);
             u8g2.drawButtonUTF8(leftOffset-1, 28, U8G2_BTN_BW1|U8G2_BTN_INV|U8G2_BTN_HCENTER, width,  0,  3, valueStr.c_str() );
-            u8g2.setFont(velvetscreen);
+            u8g2.setFont(stkS);
             valueStr = F("BPM");
             u8g2.drawButtonUTF8(leftOffset, 40, U8G2_BTN_BW1|U8G2_BTN_INV|U8G2_BTN_HCENTER, width,  0,  2, valueStr.c_str() );
           }
@@ -118,18 +118,26 @@ void updateScreen() {
       //Channel Tabs
       else {
         //Menu items
-        lastMenuItem = 3;
+        if (channels[displayTab - 1].mode == Swing) {
+          lastMenuItem = 1;
+        } else if (channels[displayTab - 1].mode == Gate) {
+          lastMenuItem = 3;
+        } else {
+          lastMenuItem = 3;
+        }
         width = 32;
         leftOffset = 62;
-        for (byte i = 1; i <= lastMenuItem; i++) {
+        for (uint8_t i = 1; i <= lastMenuItem; i++) {
           if (i == 1) {
             valueStr = F("MODE:");
-          } else if (i == 2 && channels[displayTab - 1].mode == 0) {
+          } else if (i == 2 && channels[displayTab - 1].mode == Clock) {
             valueStr = F("OFFSET:");
-          } else if (i == 2 && channels[displayTab - 1].mode == 1) {
+          } else if (i == 2 && (channels[displayTab - 1].mode == Random || channels[displayTab - 1].mode == Gate)) {
             valueStr = F("SUBDIV:");
-          } else if (i == 2 && channels[displayTab - 1].mode == 2) {
+          } else if (i == 2 && channels[displayTab - 1].mode == Sequencer) {
             valueStr = F("EDIT PATTERN");
+          } else if (i == 3 && channels[displayTab - 1].mode == Gate) {
+            valueStr = (String(pulsePeriod) + " " + String(channelPulsesPerCycle[displayTab - 1]));
           } else if (i == 3) {
             valueStr = F("MOD:");
           }
@@ -141,14 +149,18 @@ void updateScreen() {
         }
 
         //Values
-        for (byte i = 1; i <= lastMenuItem; i++) {
-          if (i == 1 && channels[displayTab - 1].mode == 0) {   //Channel mode
+        for (uint8_t i = 1; i <= lastMenuItem; i++) {
+          if (i == 1 && channels[displayTab - 1].mode == Clock) {   //Channel mode
             valueStr = F("CLOCK");
-          } else if (i == 1 && channels[displayTab - 1].mode == 1) {
+          } else if (i == 1 && channels[displayTab - 1].mode == Random) {
             valueStr = F("RAND");
-          } else if (i == 1 && channels[displayTab - 1].mode == 2) {
+          } else if (i == 1 && channels[displayTab - 1].mode == Sequencer) {
             valueStr = F("SEQ");
-          } else if (i == 2 && channels[displayTab - 1].mode == 0) {   //SubDiv and offset
+          } else if (i == 1 && channels[displayTab - 1].mode == Swing) {
+            valueStr = F("SWING");
+          } else if (i == 1 && channels[displayTab - 1].mode == Gate) {
+            valueStr = F("GATE");
+          } else if (i == 2 && channels[displayTab - 1].mode == Clock) {   //SubDiv and offset
             valueStr = String(channels[displayTab - 1].offset) + F("/");
             int PulsesPerStep;
             if (subDivs[channels[displayTab - 1].subDiv] < 0) {
@@ -157,10 +169,10 @@ void updateScreen() {
               PulsesPerStep = subDivs[channels[displayTab - 1].subDiv] * PPQN;
             }
             valueStr = valueStr + String(PulsesPerStep); //(playingModes[i] * PPQN) - 1 //String(channelPulsesPerCycle[displayTab-1]+1)
-          } else if (i == 2 && channels[displayTab - 1].mode == 1 && subDivs[channels[displayTab - 1].subDiv] > 0) {
+          } else if (i == 2 && (channels[displayTab - 1].mode == Random || channels[displayTab - 1].mode == Gate) && subDivs[channels[displayTab - 1].subDiv] > 0) {
             valueStr = F("/");
             valueStr = valueStr + String(subDivs[channels[displayTab - 1].subDiv]);
-          } else if (i == 2 && channels[displayTab - 1].mode == 1 && subDivs[channels[displayTab - 1].subDiv] < 0) {
+          } else if (i == 2 && (channels[displayTab - 1].mode == Random || channels[displayTab - 1].mode == Gate) && subDivs[channels[displayTab - 1].subDiv] < 0) {
             valueStr = F("x");
             valueStr = valueStr + String(abs(subDivs[channels[displayTab - 1].subDiv]));
           } else if (i == 3 && channels[displayTab - 1].CV1Target == 0 && channels[displayTab - 1].CV2Target == 0) {   //MOD
@@ -171,7 +183,7 @@ void updateScreen() {
             valueStr = F("CV2");
           }
 
-          if (i == 2 && channels[displayTab - 1].mode == 2) { //EDIT PATTERN thing
+          if (i == 2 && channels[displayTab - 1].mode == Sequencer) { //EDIT PATTERN thing
             if (menuItem == i && insideTab) {
               u8g2.drawBox(leftOffset + 54, ((i-1) * 11), 11, 11);
             }
@@ -189,36 +201,52 @@ void updateScreen() {
         //Main Param
         leftOffset = 29;
         width = 55;
-        if (channels[displayTab - 1].mode == 0) {
+        if (channels[displayTab - 1].mode == Clock) {
           valueStr = F("SUBDIVISION");
-        } else if (channels[displayTab - 1].mode == 1) {
+        } else if (channels[displayTab - 1].mode == Random) {
           valueStr = F("SKIP CHANCE");
-        } else if (channels[displayTab - 1].mode == 2) {
+        } else if (channels[displayTab - 1].mode == Sequencer) {
           valueStr = F("PATTERN");
+        } else if (channels[displayTab - 1].mode == Swing) {
+          valueStr = F("SWING");
+        } else if (channels[displayTab - 1].mode == Gate) {
+          valueStr = gateLengthTime[displayTab - 1];
         } 
+
         if ((!insideTab && shiftBtnPushed) || (insideTab && menuItem == 0)) {
           u8g2.drawButtonUTF8(leftOffset, 41, U8G2_BTN_BW1|U8G2_BTN_INV|U8G2_BTN_HCENTER, width,  0,  3, valueStr.c_str() );
         } else {
           u8g2.drawButtonUTF8(leftOffset, 41, U8G2_BTN_BW0|U8G2_BTN_HCENTER, width,  1,  2, valueStr.c_str() );
         }
 
-        if (channels[displayTab - 1].mode == 0) {
+        if (channels[displayTab - 1].mode == Clock) {
           if (subDivs[channels[displayTab - 1].subDiv] > 0) {
             valueStr = F("/");
           } else {
             valueStr = F("x");
           }
           valueStr = valueStr + String(abs(subDivs[channels[displayTab - 1].subDiv]));
-        } else if (channels[displayTab - 1].mode == 1) {
-          valueStr = String(channels[displayTab - 1].random) + "0%";   
-        } else if (channels[displayTab - 1].mode == 2) {
+        } else if (channels[displayTab - 1].mode == Random) {
+          valueStr = String(channels[displayTab - 1].random) + (channels[displayTab - 1].random == 0 ? "%" : "0%");   
+        } else if (channels[displayTab - 1].mode == Sequencer) {
           if (channels[displayTab - 1].seqPattern < 8) {
             valueStr = F("A");
             valueStr = valueStr + String(channels[displayTab - 1].seqPattern + 1);
-          } else {
+          } else if (channels[displayTab - 1].seqPattern >= 8 && channels[displayTab - 1].seqPattern < 16) {
             valueStr = F("B");
             valueStr = valueStr + String(channels[displayTab - 1].seqPattern - 7);
+          } else if (channels[displayTab - 1].seqPattern >= 16 && channels[displayTab - 1].seqPattern < 24) {
+            valueStr = F("C");
+            valueStr = valueStr + String(channels[displayTab - 1].seqPattern - 15);
+          } else if (channels[displayTab - 1].seqPattern >= 24 && channels[displayTab - 1].seqPattern < 32) {
+            valueStr = F("D");
+            valueStr = valueStr + String(channels[displayTab - 1].seqPattern - 23);
           }
+        } else if (channels[displayTab - 1].mode == Swing) {
+          uint8_t swingVals[6] = {50, 58, 66, 75, 83, 92};
+          valueStr = String(swingVals[channels[displayTab - 1].swing]) + "%"; 
+        } else if (channels[displayTab - 1].mode == Gate) {
+          valueStr = String(channels[displayTab - 1].gate) + "%"; 
         }
         u8g2.setFont(stkL);
         if ((!insideTab && shiftBtnPushed) || (insideTab && menuItem == 0 && (menuItemSelected || shiftBtnPushed))) {
@@ -232,9 +260,9 @@ void updateScreen() {
 
       //Tabs
       u8g2.drawHLine(0, 53, 128);
-      u8g2.setFont(velvetscreen);
-      byte yPos = 61;
-      byte xWidth = 12;
+      u8g2.setFont(stkS);
+      uint8_t yPos = 61;
+      uint8_t xWidth = 12;
       valueStr = F("w");
       if (displayTab == 0) {
         if (insideTab == true || shiftBtnPushed == true) {
@@ -246,7 +274,7 @@ void updateScreen() {
         u8g2.drawButtonUTF8(xWidth/2, yPos, U8G2_BTN_BW0|U8G2_BTN_HCENTER, xWidth,  0,  2, valueStr.c_str() );
       }
       
-      for (int i = 1; i <= 6; i++) {
+      for (uint8_t i = 1; i <= (extraChannel ? 7 : 6); i++) {
         valueStr = String(i);
         if (displayTab == i) {
           if (insideTab == true || shiftBtnPushed == true) {
@@ -259,18 +287,19 @@ void updateScreen() {
         }
       }
 
-      valueStr = F("t");
       if (masterClockMode == 0 && !isPlaying) {
+        valueStr = F("t");
         u8g2.drawUTF8(121, yPos, valueStr.c_str() );
       } else if (masterClockMode == 0 && isPlaying)  {
+        valueStr = F("r");
         u8g2.drawUTF8(122, yPos, valueStr.c_str() );
       }
     }
 
     //Edit Pattern Screen (Sequencer)
     else if (displayScreen == 1) {
-      u8g2.setFont(velvetscreen);
-      byte pattern = channels[displayTab - 1].seqPattern;
+      u8g2.setFont(stkS);
+      uint8_t pattern = channels[displayTab - 1].seqPattern;
       if (pattern < 8) {
         valueStr = F("PATTERN A");
         valueStr = valueStr + String(pattern + 1);
@@ -278,27 +307,31 @@ void updateScreen() {
         valueStr = F("PATTERN B");
         valueStr = valueStr + String(pattern - 7);
       }
-      u8g2.drawButtonUTF8(64, 5, U8G2_BTN_BW1|U8G2_BTN_HCENTER, 128,  0,  2, valueStr.c_str() );
-      for (byte i = 0; i < 8; i++) {
-        if (patternToEdit[i]) {
-          u8g2.drawUTF8(19 + i*12, 24, "q");
-        } else {
-          u8g2.drawUTF8(19 + i*12, 24, "p");
-        }
+      u8g2.drawUTF8(8, 6, valueStr.c_str() );
+      valueStr = F("L: ");
+      //u8g2.drawUTF8(100, 5, valueStr.c_str() );
+      if (!isRecording && stepNumSelected == -1) {
+        u8g2.drawButtonUTF8(97, 6, U8G2_BTN_BW1|U8G2_BTN_INV, 5,  1,  2, valueStr.c_str() );
+      } else {
+        u8g2.drawButtonUTF8(97, 6, U8G2_BTN_BW0, 5,  1,  2, valueStr.c_str() );
       }
-      for (byte i = 8; i < 16; i++) {
-        if (patternToEdit[i]) {
-          u8g2.drawUTF8(19 + (i-8)*12, 40, "q");
-        } else {
-          u8g2.drawUTF8(19 + (i-8)*12, 40, "p");
-        }
+
+      valueStr = String(sequences[patternToEdit].length + 1);
+      //u8g2.drawUTF8(110, 5, valueStr.c_str() );
+      if (!isRecording && stepNumSelected == -1 && (menuItemSelected || shiftBtnPushed)) {
+        u8g2.drawButtonUTF8(110, 6, U8G2_BTN_BW1, 8,  1,  2, valueStr.c_str() );
+      } else if (!isRecording && stepNumSelected == -1 && (!menuItemSelected || !shiftBtnPushed)) {
+        u8g2.drawButtonUTF8(110, 6, U8G2_BTN_BW1|U8G2_BTN_INV, 8,  1,  2, valueStr.c_str() );
+      } else {
+        u8g2.drawButtonUTF8(110, 6, U8G2_BTN_BW0, 8,  1,  2, valueStr.c_str() );
       }
-      if (!isRecording) {
-        if (stepNumSelected < 8 ) {
-          u8g2.drawFrame(16 + stepNumSelected * 12, 16, 11, 11);
-        } else {
-          u8g2.drawFrame(16 + (stepNumSelected-8) * 12, 32, 11, 11);
-        }
+
+      u8g2.drawHLine(0, 8, 128);
+      for (uint8_t i = 0; i <= sequences[patternToEdit].length; i++) {
+        u8g2.drawUTF8(19 + (i % 8)*12, 33 - ((sequences[patternToEdit].length / 8) * 5) + ((i / 8) * 11), (bitRead(sequences[patternToEdit].sequence, i) ? "q" : "p"));
+      }
+      if (!isRecording && stepNumSelected >= 0) {
+        u8g2.drawFrame(16 + (stepNumSelected % 8)*12, 25 - ((sequences[patternToEdit].length / 8) * 5) + ((stepNumSelected / 8) * 11), 11, 11); //cursor
       }
 
       if (isRecording) {
@@ -313,9 +346,9 @@ void updateScreen() {
       u8g2.drawStr(8, 5, valueStr.c_str() );
       u8g2.drawStr(122 - (u8g2.getStrWidth(version.c_str())), 5, version.c_str() );
       u8g2.drawHLine(0, 8, 128);
-      lastMenuItem = 3;
-      byte width = 112;
-      for (byte i = 0; i <= lastMenuItem; i++) {
+      lastMenuItem = 4;
+      uint8_t width = 112;
+      for (uint8_t i = 0; i <= lastMenuItem; i++) {
         switch(i) {
           case 0:
             valueStr = F("CALIBRATE CV INS");
@@ -327,6 +360,9 @@ void updateScreen() {
             valueStr = F("REVERSE ENCODER");
             break;
           case 3:
+            valueStr = (extraChannel ? F("7TH CHANNEL: ON") : F("7TH CHANNEL: OFF"));
+            break;
+          case 4:
             valueStr = F("FACTORY RESET");
             break;
         };

Software/Gravity/config.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#define PPQN 24
+#define PULSE_LENGTH 120  //1/10ms resolution. 12ms was failing at 1ms resolution at higher bpm. 60000/200/24 = 12.5 the max pulse length at 1ms resolution for 200bpm is 11ms
+#define MAXBPM 200       //250 at 24ppqn with 5ms pulse will be 50/50 square wave
+#define MINBPM 20
+
+#define SCREEN_ADDRESS 0x3C
+
+// Rev 2+ Config
+#define ENC_BTN_PIN 14
+#define ENC_D1_PIN 17
+#define ENC_D2_PIN 4
+#define START_STOP_BTN_PIN 5
+#define SHIFT_BTN_PIN 12
+#define EXT_INPUT_PIN 2  //needs to be an interrupt pin
+#define ANALOGUE_INPUT_1_PIN A7
+#define ANALOGUE_INPUT_2_PIN A6
+const uint8_t clockOutPin = 3;
+const uint8_t outsPins[] = { 7, 8, 10, 6, 9, 11, clockOutPin };
+bool rotateScreen = false;
+bool reverseEnc = false;
+
+/* Rev 1 Config
+#define ENC_BTN_PIN 14
+#define ENC_D1_PIN 17
+#define ENC_D2_PIN 4
+#define START_STOP_BTN_PIN 5
+#define SHIFT_BTN_PIN 100
+
+#define EXT_INPUT_PIN 2 //needs to be an interrupt pin
+#define ANALOGUE_INPUT_1_PIN A2
+#define ANALOGUE_INPUT_2_PIN A1
+
+const byte clockOutPin = 13;
+const byte outsPins[6] = {6, 11, 7, 10, 8, 9, clockOutPin};
+bool rotateScreen = true;
+*/
+
+#define bitFlip(value, bit) ((value) ^ (1UL << (bit)))

Software/Gravity/fonts.h

@@ -0,0 +1,38 @@
+#pragma once
+
+const PROGMEM uint8_t stkS[437] U8G2_FONT_SECTION("stk-s") = 
+  "\64\0\2\2\3\3\2\3\4\5\5\0\0\5\0\5\0\0\221\0\0\1\230 \4\200\134%\11\255tT"
+  "R\271RI(\6\252\334T\31)\7\252\134bJ\12+\7\233\345\322J\0,\5\221T\4-\5\213"
+  "f\6.\5\211T\2/\6\244\354c\33\60\10\254\354T\64\223\2\61\7\353\354\222\254\6\62\11\254l"
+  "\66J*\217\0\63\11\254l\66J\32\215\4\64\10\254l\242\34\272\0\65\11\254l\206\336h$\0\66"
+  "\11\254\354T^\61)\0\67\10\254lF\216u\4\70\11\254\354TL*&\5\71\11\254\354TL;"
+  ")\0:\6\231UR\0A\10\254\354T\34S\6B\11\254lV\34)\216\4C\11\254\354T\324\61"
+  ")\0D\10\254lV\64G\2E\10\254l\206\36z\4F\10\254l\206^\71\3G\11\254\354TN"
+  "\63)\0H\10\254l\242\34S\6I\6\251T\206\0J\10\254\354k\231\24\0K\11\254l\242J\62"
+  "\225\1L\7\254lr{\4M\11\255t\362ZI\353\0N\11\255t\362TI\356\0O\10\254\354T"
+  "\64\223\2P\11\254lV\34)g\0Q\10\254\354T\264b\12R\10\254lV\34\251\31S\11\254\354"
+  "FF\32\215\4T\7\253dVl\1U\10\254l\242\63)\0V\11\255t\262Ne\312\21W\12\255"
+  "t\262J*\251.\0X\11\254l\242L*\312\0Y\12\255tr\252\63\312(\2Z\7\253df*"
+  "\7p\10\255\364V\266\323\2q\7\255\364\216\257\5r\10\253d\242\32*\2t\6\255t\376#w\11"
+  "\255\364V\245FN\13x\6\233dR\7\0\0\0\4\377\377\0";
+
+const PROGMEM uint8_t stkL[592] U8G2_FONT_SECTION("stk-l") = 
+  "\26\0\4\4\4\5\2\1\6\17\27\1\0\27\0\0\0\1\77\0\0\2\63%'\17\37\313\330R#&"
+  "\32!F\14\211I\310\24!\65\204(MF\21)Cd\304\10\62b\14\215\60Vb\334\20\0/\14"
+  "\272\336\336d\244\350\263q\343\0\60\37|\377\216!%*\10\35\263\253ChD\30\21bB\14\242S"
+  "\306lv\210\204\22Ef\0\61\24z\337\322\60R\205\314\234\31\61F\310\270\371\177\224\42\3\62\33|"
+  "\377\216)\64*\10\35\63\66r\206\304\314`c\252\34\301\221\263|\360\300\0\63\34|\377\216)\64*"
+  "\10\35\63\66r \71\332YIr\226\306\16\221P\203\312\14\0\64 |\377\226\220AC\306\20\31B"
+  "f\310\240\21\204F\214\32\61j\304(cv\366\200\305\312\371\0\65\32|\377\206\212-F\316\27\204\224"
+  "\254\30\65t\344,\215\35\42\241\6\225\31\0\66\33}\17\317\251\64+\206\235\63:/\314,aA\352"
+  "\234\335\235\42\261&\325\31\0\67\23|\377\302\212\7)\347Crt\70\345\300\221\363\16\0\70 |\377"
+  "\216)\64*\10\35\263\354\20\11\42d\20\235BC\204\4\241cvv\210\204\32Tf\0\71\32|\377"
+  "\216)\64*\10\35\263\263C$\226\250I\71_\14\42\241\6\225\31\0A\26}\17S\271Si(\31"
+  "\65d\324\210q\366\356\301w\366\273\1B$}\17C\42\65KF\221\30\66b\330\210a#\206\215\30"
+  "Eb\311&\243H\14;g\317\36\204`\261\4\0C\27}\17\317\251\64K\10!\63:\377\247\304F"
+  "\20\42\261F\21\22\0D\33}\17C\42\65KF\15\31\66b\330\210q\366\77;\66b\24\211%j"
+  "\22\1E\21|\377\302\7)\347%\42\214F\316/\37<\60I\7so\302\37$M$}\17\203\310"
+  "r\346N\245Q\263\202E\12)L\224\60Q\302\310\20#C\214\14\61\23\306L\30s\366\335\0T\15"
+  "}\17\303\7\251\206\316\377\377\12\0X)~\37\303@\203\307H\14\33B\210\14\21RC\206\241\63h"
+  "\222(I\203\346\220\15\31E\204\14!\42\303F\20;h\341\0x\24\312\336\302 CGH\240\61E"
+  "\312\14\222)\6Y\64\0\0\0\0\4\377\377\0";