22 lines
423 B
Arduino
22 lines
423 B
Arduino
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const byte PIN_ROT = 2;
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volatile unsigned long counter = 0;
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void count(){
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static byte rot[2] = {0}; //rot[0]:今の状態, rot[1]:前回の状態
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rot[0] = digitalRead(PIN_ROT);
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if(rot[0] != rot[1]){
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rot[1] = rot[0];
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counter++;
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}
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}
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void setup(){
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Serial.begin(9600);
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pinMode(PIN_ROT, INPUT);
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}
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void loop(){
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count(); //ロータリーエンコーダーの変化を見る
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Serial.println(counter);
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}
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