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KEYES ARDUINO key switch module

When the key is pressed the buildin LED on pin 13 will be turned off.

Connecting to the Arduino

• Pin - = GND, connect to GND of the Arduino
• Pin (middel pin) +5 v, connect to Arduino +5
• Pin S signal, connect to Arduino pin 10

Example code

int Led = 13 ;// define LED Interface
int buttonpin = 10; // define the key switch sensor interface
int val ;// define numeric variables val
void setup ()
{
  pinMode (Led, OUTPUT); // define LED as output interface
  pinMode (buttonpin, INPUT); // define the key switch sensor output interface
}
void loop ()
{
  val = digitalRead (buttonpin); // digital interface will be assigned a value of 3 to read val
    if (val == HIGH)  // When the key switch when the sensor detects a signal, LED flashes
  {
    digitalWrite (Led, HIGH);
  }
  else
  {
    digitalWrite (Led, LOW);
  }
}