Клавіатура: 3D друк + Arduino + AS5600

#include <Wire.h>
#include <Mouse.h>
#include <Keyboard.h>

// AS5600 I2C address
#define AS5600_ADDR 0x36

// AS5600 register addresses
#define RAW_ANGLE_HIGH 0x0C
#define RAW_ANGLE_LOW 0x0D

// Button pin definitions
#define ESC_BUTTON_PIN 4
#define ENTER_BUTTON_PIN 5
#define SPACE_BUTTON_PIN 6

// Variables to track the encoder state
uint16_t lastAngle = 0;
int16_t scrollDelta = 0;

void setup() {
  Wire.begin();  // Initialize I2C
  Mouse.begin(); // Initialize HID Mouse
  Keyboard.begin(); // Initialize HID Keyboard

  // Set button pins as input with pull-up resistors
  pinMode(ESC_BUTTON_PIN, INPUT_PULLUP);
  pinMode(ENTER_BUTTON_PIN, INPUT_PULLUP);
  pinMode(SPACE_BUTTON_PIN, INPUT_PULLUP);

  Serial.begin(9600);
  Serial.println("AS5600 with Buttons: ESC, Enter, Spacebar");
}

void loop() {
  // Handle encoder scrolling
  uint16_t currentAngle = readRawAngle();
  scrollDelta = calculateScrollDelta(currentAngle, lastAngle);

  // Scroll if there's a significant change in angle
  if (abs(scrollDelta) > 3) { // Adjust threshold for sensitivity
    Mouse.move(0, 0, scrollDelta); // Perform scroll
    Serial.print("Scroll Delta: ");
    Serial.println(scrollDelta);
  }
  lastAngle = currentAngle;

  // Handle buttons
  handleButton(ESC_BUTTON_PIN, KEY_ESC);
  handleButton(ENTER_BUTTON_PIN, KEY_RETURN);
  handleButton(SPACE_BUTTON_PIN, ' ');

  delay(10); // Add a slight delay for smooth operation
}

// Function to read the raw angle from AS5600
uint16_t readRawAngle() {
  Wire.beginTransmission(AS5600_ADDR);
  Wire.write(RAW_ANGLE_HIGH);
  Wire.endTransmission();
  Wire.requestFrom(AS5600_ADDR, 2);
  
  uint16_t highByte = Wire.read();
  uint16_t lowByte = Wire.read();
  
  return (highByte << 8) | lowByte;
}

// Calculate scroll delta based on angle difference
int16_t calculateScrollDelta(uint16_t current, uint16_t last) {
  int16_t delta = current - last;
  
  // Handle overflow
  if (delta > 2048) delta -= 4096;
  if (delta < -2048) delta += 4096;
  
  // Scale the angle difference for smoother scrolling
  return delta / 100; // Adjust scaling factor as needed
}

// Function to handle button presses
void handleButton(int pin, uint8_t key) {
  static bool keyStates[3] = {false, false, false};
  int buttonIndex = pin - ESC_BUTTON_PIN; // Map pin to index

  if (digitalRead(pin) == LOW && !keyStates[buttonIndex]) {
    // Button pressed
    Keyboard.press(key);
    Serial.print("Button Pressed: ");
    Serial.println(key);
    keyStates[buttonIndex] = true;
  } else if (digitalRead(pin) == HIGH && keyStates[buttonIndex]) {
    // Button released
    Keyboard.release(key);
    Serial.print("Button Released: ");
    Serial.println(key);
    keyStates[buttonIndex] = false;
  }
}