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- int sensorValue;
- int sensorLow = 1023;
- int sensorHigh = 0;
- const int ledPin = 13;
- void setup() {
- pinMode(ledPin, OUTPUT);
- digitalWrite(ledPin, HIGH);
- while (millis() < 5000) {
- sensorValue = analogRead(A0);
- if (sensorValue > sensorHigh) {
- sensorHigh = sensorValue;
- }
- if (sensorValue < sensorLow) {
- sensorLow = sensorValue;
- }
- }
- digitalWrite(ledPin, LOW);
- }
- void loop() {
- sensorValue = analogRead(A0);
- int pitch = map(sensorValue, sensorLow, sensorHigh, 50, 4000);
- tone(8, pitch, 20);
- delay(10);
- }
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