const { Board, Led } = require("johnny-five"); const board = new Board({ port: '/dev/ttyUSB0', repl: false, debug: false }) board.on('ready', () => { const led = new Led.RGB([7, 6, 5]); let ins = 252; board.loop(10, () => { led.color("#0000FF"); led.intensity(ins); ins--; if (ins < 1) { ins = 255; } }) board.analogRead(0, (val) => { console.log(val); }) });