upm/examples/javascript/ds2413.js

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/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
var sensorObj = require('jsupm_ds2413');
/************** Main code **************/
// Instantiate a DS2413 Module on a Dallas 1-wire bus connected to UART 0
var sensor = new sensorObj.DS2413(0);
// find all of the DS2413 devices present on the bus
sensor.init();
// how many devices were found?
console.log("Found", sensor.devicesFound(), "device(s)");
// read the gpio and latch values from the first device
// the lower 4 bits are of the form:
// <gpioB latch> <gpioB value> <gpioA latch> <gpioA value>
console.log("GPIO device 0 values:", sensor.readGpios(0));
// set the gpio latch values of the first device
console.log("Setting GPIO latches to on");;
sensor.writeGpios(0, 0x03);
sensor = null;
sensorObj.cleanUp();
sensorObj = null;
console.log("Exiting...");
process.exit(0);