Page 197 - Programming the Photon Getting Started With the Internet of Things

Syntax

digitalWrite(pin, value);

Parameters

pin

The digital pin number.

value

The value is either HIGH or LOW.

Return Value

None

Example

digitalWrite(D0, HIGH);

This turns on digital pin 0 and outputs 3V3.

if

This very useful function executes a certain block of code if the conditions are true.

Syntax

if(condition) {
//executable code goes here

}

Example

int = 1;
if (n < 1) {

digitalWrite(Ledred, HIGH);
}
if (n > 1) {
digitalWrite(Ledgreen, HIGH);

}