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Some random snippets

Potentiometer example / Analog reading/writing / mapping

const int analogInPin = A0; // Analog input pin that the potentiometer is attached to const int analogOutPin = 9; // Analog output pin that the LED is attached to int sensorValue = 0; // value read from the pot int outputValue = 0; // value output to the PWM (analog out) sensorValue = analogRead(analogInPin); outputValue = map(sensorValue, 0, 1023, 0, 255); analogWrite(analogOutPin, outputValue);