upm/examples/javascript/wheelencoder.js
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

39 lines
903 B
JavaScript

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015 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
*/
var sensorObj = require('jsupm_wheelencoder');
// Instantiate a DFRobot Wheel Encoder on digital pin D2
var sensor = new sensorObj.WheelEncoder(2);
// set the counter to 0 and start counting
sensor.clearCounter();
sensor.startCounter();
setInterval(function()
{
// output milliseconds passed and current sensor count
console.log("Millis: " + sensor.getMillis() + " Count: " +
sensor.counter());
}, 1000);
// exit on ^C
process.on('SIGINT', function()
{
sensor = null;
sensorObj.cleanUp();
sensorObj = null;
console.log("Exiting.");
process.exit(0);
});