77 lines
1.5 KiB
Arduino
77 lines
1.5 KiB
Arduino
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// define the pins for the rotary encoder
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const int pinA = 2;
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const int pinB = 3;
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const int sw = 4;
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// define the current and previous state of the rotary encoder pins
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int currA = 0;
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int currB = 0;
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int prevA = 0;
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int prevB = 0;
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int prevButton = 1;
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int currButton = 0;
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// define the current and previous positions of the rotary encoder
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int position = 0;
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int prevPosition = 0;
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void setup() {
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// set the pin modes for the rotary encoder
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pinMode(pinA, INPUT_PULLUP);
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pinMode(pinB, INPUT_PULLUP);
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pinMode(sw, INPUT_PULLUP);
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// enable pull-up resistors on the rotary encoder pins
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// digitalWrite(pinA, HIGH);
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// digitalWrite(pinB, HIGH);
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// initialize the serial communication
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Serial.begin(9600);
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}
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void loop() {
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// read the current state of the rotary encoder
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currA = digitalRead(pinA);
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currB = digitalRead(pinB);
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//read state of button
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currButton = digitalRead(sw);
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// check if the state of pin A has changed
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if (currA != prevA) {
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// if pin A has changed, check the state of pin B to determine direction
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if (currA == currB) {
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// clockwise rotation
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position++;
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} else {
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// counter-clockwise rotation
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position--;
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}
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delay(50);
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Serial.println(position);
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}
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if(currButton == 0 && prevButton == 1){
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Serial.println("button press");
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delay(20);
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}
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prevButton = currButton;
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// update the previous state and position of the rotary encoder
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prevA = currA;
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prevB = currB;
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prevPosition = position;
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}
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