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- #define ledPin 2
- void setup() {
- Serial.begin(9600);
- pinMode(ledPin, OUTPUT);
- }
- void loop() {
- char rx_data = Serial.read();
- switch(rx_data) {
- case 'ON':
- digitalWrite(ledPin, HIGH);
- Serial.println("Led is turned on!");
- break;
- case 'OFF':
- ditialWrite(ledPin, LOW);
- Serial.println("Led is turned off!");
- break;
- }
- }
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