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 vote370 views1 answer
Variably modified ‘_memory’ at file scope
C
0 vote408 views2 answers
Variables in c
C
0 vote385 views1 answer
Len of str vbs
C
0 vote404 views1 answer
WARNING: QA Issue: bgslibrary-dev rdepends on libopencv-imgproc, but it isn't a build dependency, missing opencv in DEPENDS or PACKAGECONFIG? [build-deps]
C
0 vote417 views2 answers
C convert float to string
C
0 vote385 views1 answer
Balanced binary tree
C
6 votes367 views1 answer
What is strikethrough in markdown
C
0 vote387 views1 answer
Simple bootstrap form example
C
0 vote375 views1 answer
Scan numbers into array c
C
0 vote394 views1 answer
How to reset all values of 2d vector to 0
C