Sketch for rotatory encoder
#define encoderOutA 2 // CLK pin of Rotary Enocoder #define encoderOutB 1 // DT pin of Rotary Enocoder int counter = 0; int presentState; int previousState; void setup() { pinMode (encoderOutA,INPUT); pinMode (encoderOutB,INPUT); Serial.begin (9600); previousState = digitalRead(encoderOutA); // Get current state of the encoderOutA } void loop() { presentState = digitalRead(encoderOutA); if (presentState != previousState) { if (digitalRead(encoderOutB) != presentState) { counter ++; } else { counter --; } Serial.print("Position: "); Serial.println(counter); } previousState = presentState; // Replace previous state of the encoderOutA with the current state }