Arduino – Piezo – Piano + Variable Resistor + Switch 1
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int piezo=2; int numbers=0; int varRes=A1; int btnStart=4; int tones[][15]={262, 294, 330, 349, 392, 440, 494, 523, 587, 659, 699, 784, 880, 988, 1047}; void setup() { pinMode(btnStart, INPUT); } void loop() { numbers=map(analogRead(varRes), 0, 1023, 0, 14); if (digitalRead(btnStart)) { tone(piezo, tones[numbers]); } else { noTone(piezo); } } |