Seeed Grove Beginner Kit - Page 23

Software Code
Open Arduino IDE.
Copy the following code, click Verify to check for syntax errors. Verify that there are no
errors, and you can upload the code.
//Rotary controls LED
int rotaryPin = A0; // select the input pin for the rotary
int ledPin = 4; // select the pin for the LED
int rotaryValue = 0; // variable to store the value coming from the rota
ry
void setup() {
// declare the ledPin as an OUTPUT:
pinMode(ledPin, OUTPUT);
}
void loop() {
// read the value from the sensor:
rotaryValue = analogRead(rotaryPin);
// turn the ledPin on
digitalWrite(ledPin, HIGH);
// stop the program for <sensorValue> milliseconds:
delay(rotaryValue);
// turn the ledPin off:
digitalWrite(ledPin, LOW);
// stop the program for for <sensorValue> milliseconds:
delay(rotaryValue);
}
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Grove Beginner Kit For Arduino®