raspberry-pi-gpio-respeaker4-led

A library to control the respeaker 4 leds with Java.

Description

This is a library to control the respeaker 4 leds with the gpio controller using Java and PI4J. Default data pin is 12, clock pin is 14 and power pin is 21.

Use the class

//Number of lights
GPIOLEDController t = new GPIOLEDController(12);

//Datapin, Clockpin
t.init(RaspiPin.GPIO_12, RaspiPin.GPIO_14);

Examples

Show first led red

//Lightindex, red, green, blue, brightness
t.setLight(0, 255, 0, 0, 31);

//Sent data to gpio controller and show result
t.show();

Show second led blue

t.setLight(1, 0, 0, 255, 31);
t.show();

Switch all lights off

 t.resetAllLights();

Additional color examples

blue: (0, 0, 255)
green: (0, 255, 0)
orange: (255, 128, 0)
pink: (255, 51, 153)
purple (128, 0, 128)
red (255, 0, 0)
white (255, 255, 255)
yellow (255, 255, 51)

Special thanks

Thanks to Ramin Sangesari for his post about the bit-shifting which helped a lot to create this code.