upm/examples/javascript/ds2413.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

40 lines
1.1 KiB
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_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);