apa102-spi

node-apa102-spi

Node Raspberry Pi library to drive APA102 RGB led over SPI

Installation

npm install apa102-spi

Usage

var Apa102spi = require('apa102-spi')
 
// Apa102spi(number of leds, clock divider)
var LedDriver = new Apa102spi(9, 100)
 
// setLedColor(n, brightness 0-31, red 0-255, green 0-255, blue 0-255)
LedDriver.setLedColor(0, 1, 255, 0, 0)
 
// send data to led string
LedDriver.sendLeds()

The clock divider argument is an even divisor of the base 250MHz rate ranging between 0 and 65536.

This library must be run as root