#!/usr/bin/env node let uhk = require('./uhk'); let delayCycle = true; let areLedsEnabled = true; uhk.sendUsbPacketsByCallback(() => { delayCycle = !delayCycle; if (delayCycle) { return new uhk.DelayMs(500); } else { areLedsEnabled = !areLedsEnabled; return new Buffer([uhk.usbCommands.setTestLed, areLedsEnabled ? 1 : 0]); } });