hybridgroup/artoo-gpio

# Commands

## on 

Turns LED on.

##### Params

`no params`

##### Returns

`true or nil`

## off 

Turns LED off.

##### Params

`no params`

##### Returns

`true or nil`

## on? 

Returns true if LED is on, otherwise returns false.

##### Params

`no params`

##### Returns

`true or false`

## off? 

Returns true if LED is off, otherwise returns false.

##### Params

`no params`

##### Returns

`true or false`

## toggle 

Turns the LED on, or off, depending on if it is already off, or on, respectively.

##### Params

`no params`

##### Returns

`true or nil`

## brightness(brightness_int)

Sets brightness of the led to the specified brightness value passed to brightness(brightness_int) using PWM, brightness can be any integer value between `0` and `255`.

##### Params

- **brightness_int** - params , the brightness value

##### Returns

`true or nil`