int ledPin = 9; // LED connected to digital pin 9 int analogPin = A0; // potentiometer connected to analog pin A0 int val = 0; // variable to store the read value
void setup() { pinMode(ledPin, OUTPUT); // sets the pin as output }
void loop() { val = analogRead(analogPin); // read the input pin analogWrite(ledPin, val / 4); // analogRead values go from 0 to 1023, analogWrite values from 0 to 255 }
/* SerialEvent occurs whenever a new data comes in the hardware serial RX. This routine is run between each time loop() runs, so using delay inside loop can delay response. Multiple bytes of data may be available. */ void serialEvent() { while (Serial.available()) { // get the new byte: char inChar = (char)Serial.read(); // add it to the inputString: inputString += inChar; // if the incoming character is a newline, set a flag so the main loop can // do something about it: if (inChar == '\n') { stringComplete = true; } } }
