basic implementation of analog inputs and test script

analog_input.h

@@ -0,0 +1,55 @@
+/**
+ * @file analog_input.h
+ * @author Adam Wonak (https://github.com/awonak)
+ * @brief Class for interacting with analog inputs.
+ * @version 0.1
+ * @date 2025-05-23
+ * 
+ * @copyright Copyright (c) 2025
+ * 
+ */
+#ifndef ANALOG_INPUT_H
+#define ANALOG_INPUT_H
+
+const int MAX_INPUT = (1 << 10) - 1;  // Max 10 bit analog read resolution.
+const int CALIBRATION_OFFSET = 15;
+
+class AnalogInput {
+   public:
+    AnalogInput() {}
+    ~AnalogInput() {}
+
+    /**
+    * @brief Initializes a analog input object.
+    * 
+    * @param pin gpio pin for the analog input.
+    */
+    void Init(uint8_t pin) {
+        pinMode(pin, INPUT);
+        pin_ = pin;
+    }
+
+    /**
+     * @brief Read the value of the analog input.
+     * 
+     */
+    void Process() {
+        old_read_ = read_;
+        int raw = analogRead(pin_);
+        read_ = map(raw, CALIBRATION_OFFSET, MAX_INPUT, 0, MAX_INPUT);
+    }
+
+    /**
+     * @brief Get the current value of the analog input.
+     * 
+     * @return InputState 
+     */
+    inline uint16_t Read() { return read_; }
+
+   private:
+    uint8_t pin_;
+    uint16_t read_;
+    uint16_t old_read_;
+};
+
+#endif