106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/**
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* Analog Input Calibration Script
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*
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* Provide each CV input with a constant voltage of -5v, 0v, and 5v. For
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* each config point, provide the appropriate voltage value and then adjust
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* the encoder until you have the correct calibration value set.
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*
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* With the arrow on the left side of the bar, provide a -5v signal and adjust
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* the encoder until you read -512.
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*
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* With the arrow in the center of the bar, provide a 0v signal and adjust the
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* encoder until you read 0.
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*
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* With the arrow on the right side of the bar, provide a 5v signal and adjust
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* the encoder until you read 512.
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*
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* TODO: store the calibration value in EEPROM.
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*/
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#include "gravity.h"
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byte selected_param = 0;
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// Initialize the gravity library and attach your handlers in the setup method.
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void setup() {
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// Initialize Gravity.
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gravity.Init();
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gravity.encoder.AttachRotateHandler(CalibrateCV);
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gravity.encoder.AttachPressHandler(NextCalibrationPoint);
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}
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// The loop method must always call `gravity.Process()` to read any peripherial state changes.
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void loop() {
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gravity.Process();
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UpdateDisplay();
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}
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void NextCalibrationPoint() {
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selected_param = (selected_param + 1) % 6;
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}
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void CalibrateCV(Direction dir, int val) {
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AnalogInput* cv = (selected_param > 2) ? &gravity.cv2 : &gravity.cv1;
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switch (selected_param % 3) {
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case 0:
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cv->AdjustCalibrationLow(val);
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break;
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case 1:
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cv->AdjustCalibrationOffset(val);
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break;
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case 2:
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cv->AdjustCalibrationHigh(val);
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break;
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}
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}
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void UpdateDisplay() {
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gravity.display.clearDisplay();
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DisplayCalibration(&gravity.cv1, "CV1: ", 0);
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DisplayCalibration(&gravity.cv2, "CV2: ", 1);
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gravity.display.display();
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}
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void DisplayCalibration(AnalogInput* cv, String title, int index) {
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int barWidth = 100;
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int barHeight = 10;
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int textHeight = 10;
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int half = barWidth / 2;
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int offsetX = 16;
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int offsetY = (32 * index);
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int color = 1;
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// CV value reading.
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int value = constrain(cv->Read(), -512, 512);
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gravity.display.setCursor(0, offsetY);
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gravity.display.print(title);
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gravity.display.print(value >= 0 ? " " : "");
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gravity.display.print(value);
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gravity.display.setCursor(92, offsetY);
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gravity.display.print(value >= 0 ? " " : "");
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gravity.display.print(cv->Voltage());
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gravity.display.print(F("V"));
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gravity.display.drawRect(offsetX, textHeight + offsetY, barWidth, barHeight, color);
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if (value > 0) {
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// 0 to 512
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int x = (float(value) / 512.0) * half;
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int fill = min(x, 512);
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gravity.display.fillRect(half + offsetX, textHeight + offsetY, fill, barHeight, color);
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} else {
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// -512 to 0
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int x = (float(abs(value)) / 512.0) * half;
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int fill = min(half, x);
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gravity.display.fillRect((half + offsetX) - x, textHeight + offsetY, fill, barHeight, color);
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}
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// Display selected calibration point if selected calibration point belongs to current cv input.
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if (selected_param / 3 == index) {
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int left = offsetX + ((half - 2) * (selected_param % 3));
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int top = barHeight + textHeight + offsetY + 2;
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gravity.display.drawChar(left, top, 0x1E, 1, 0, 1);
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}
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}
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