Page 199 - Programming the Photon Getting Started With the Internet of Things

pin number, instead of typing the pin number every time, it is easier to put “led” if you
have an LED connected to that pin.

pinMode

This sets the direction of a pin to either an output or an input. This function is always
included in setup().

Syntax

pinMode(pin, mode);

Parameters

pin

The pin number.

mode

Either an INPUT or an OUTPUT (case sensitive).

Example

pinMode(D0, OUTPUT);

This sets digital pin 0 to an output pin, which can be controlled using the function

digitalWrite.

servo.attach

This assigns a servo object to a particular pin on the Photon board.

Syntax

myServo.attach(pin);

Parameters

pin

The pin number.

myServo