Arduino digital input pins

int ledPin = 13;  // LED connected to digital pin 13
int inPin = 7;    // pushbutton connected to digital pin 7
int val = 0;      // variable to store the read value

void setup() {
  pinMode(ledPin, OUTPUT);  // sets the digital pin 13 as output
  pinMode(inPin, INPUT);    // sets the digital pin 7 as input
}

void loop() {
  val = digitalRead(inPin);   // read the input pin
  digitalWrite(ledPin, val);  // sets the LED to the button's value
}

Source: arduino.cc

Similar codes

1 vote197 views1 answer
Adb switch to usb
C
0 vote192 views3 answers
Confirm sweet alert
C
0 vote216 views1 answer
C program to find minimum of 4 numbers using conditional operator in c
C
1 vote213 views1 answer
C modify char array
C
5 votes232 views2 answers
Input array elements in c
C
0 vote204 views1 answer
How we can strore a nested structure values in arrays
C
1 vote207 views1 answer
'&&' within '||'
C
2 votes203 views1 answer
Malloc is undefined
C
4 votes187 views1 answer
Typedef c struct
C
0 vote236 views1 answer
/usr/bin/mandb: fopen /var/cache/man/7935: Permission denied
C