Mihai Tudor Panu 89d5de43e0 license: update to SPDX style license text throughout
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
2020-03-05 15:13:36 -08:00

54 lines
1.6 KiB
JavaScript

/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2014 Intel Corporation.
*
* This program and the accompanying materials are made available under the
* terms of the The MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
*/
//Load servo module.
var servoModule = require("jsupm_servo");
//Instantiate ES08A Servo module on GPIO 5
var servo = new servoModule.ES08A(5);
// function to initialize servo
// timeOffset: how long after hitting "run"
// should we start this servo instance
// timeInterval: how frequently should this instance run after timeOffset
// angle: the angle for this instance
function startServo(timeOffset, timeInterval, angle)
{
// Start running this instance after timeOffset milliseconds
setTimeout(function()
{
// run this instance every timeInterval milliseconds
setInterval(function()
{
servo.setAngle(angle);
console.log("Set angle to " + angle);
}, timeInterval);
}, timeOffset);
// timeOffset tells setTimeout when
// to execute the function specified in the first param
// angle is passed as a param to the specified function
}
// start immediately, run every 3 seconds, go 0 degrees
startServo(0, 3000, 0);
// start in 1 second, run every 3 seconds, go 90 degrees
startServo(1000, 3000, 90);
// start in 2 seconds, run every 3 seconds, go 180 degrees
startServo(2000, 3000, 180);
// Print message when exiting
process.on('SIGINT', function()
{
console.log("Exiting...");
process.exit(0);
});