38 lines
633 B
Arduino
38 lines
633 B
Arduino
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/*
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Rotary Encoder - Interrupt Example
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The circuit:
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* encoder pin A to Arduino pin 2
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* encoder pin B to Arduino pin 3
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* encoder ground pin to ground (GND)
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*/
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#include <Rotary.h>
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Rotary r = Rotary(2, 3);
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void setup() {
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Serial.begin(9600);
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r.begin();
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PCICR |= (1 << PCIE2);
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PCMSK2 |= (1 << PCINT18) | (1 << PCINT19);
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sei();
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}
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void loop() {
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}
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ISR(PCINT2_vect) {
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unsigned char result = r.process();
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if (result == DIR_NONE) {
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// do nothing
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}
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else if (result == DIR_CW) {
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Serial.println("ClockWise");
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}
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else if (result == DIR_CCW) {
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Serial.println("CounterClockWise");
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}
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}
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