The Arduino project's file for the RGB LED example.

index.js

var { connectToHost } = require('./client')
var five = require('johnny-five')
var board = new five.Board()
var rgbHex = require('rgb-hex')

function main() {
	// Connection

	const serverUrl = 'http://localhost:8080'

	const responses = {
		CONNECT: () => console.log('Connected'),
		DISCONNECT: () => console.log('Disconnected'),
		CHANGE_COLOR: (data) => updateColor(data.color, data.value),
	}

	const dispatch = connectToHost(serverUrl, responses)

	// Components

	const led = new five.Led.RGB({
		pins: [6, 5, 3],
	})

	board.repl.inject({
		led: led,
	})

	led.on()

	// State

	let rgb = {
		red: 255,
		green: 255,
		blue: 255,
	}

	// State changes

	const updateColor = (color, value) => {
		let intColor = Math.round((value / 100) * 255)
		let hexColor = rgbHex(rgb.red, rgb.green, rgb.blue)

		rgb[color] = intColor
		led.color(hexColor)
	}
}

// When the board is ready, run main
board.on('ready', main)