| /* | |
| DigitalReadSerial | |
| Reads a digital input on pin 2, prints the result to the Serial Monitor | |
| This example code is in the public domain. | |
| https://www.arduino.cc/en/Tutorial/BuiltInExamples/DigitalReadSerial | |
| */ | |
| // digital pin 2 has a pushbutton attached to it. Give it a name: | |
| int pushButton = 2; | |
| // the setup routine runs once when you press reset: | |
| void setup() { | |
| // initialize serial communication at 9600 bits per second: | |
| Serial.begin(9600); | |
| // make the pushbutton's pin an input: | |
| pinMode(pushButton, INPUT); | |
| } | |
| // the loop routine runs over and over again forever: | |
| void loop() { | |
| // read the input pin: | |
| int buttonState = digitalRead(pushButton); | |
| // print out the state of the button: | |
| Serial.println(buttonState); | |
| delay(1); // delay in between reads for stability | |
| } | |