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This driver was developed using an SX1276 based shield on the Galileo G2. It requires 3.3v of operation. It does not work with Edison, due to SPI issues. Signed-off-by: Jon Trulson <jtrulson@ics.com>
111 lines
3.1 KiB
JavaScript
111 lines
3.1 KiB
JavaScript
/*jslint node:true, vars:true, bitwise:true, unparam:true */
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/*jshint unused:true */
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/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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var sensorObj = require('jsupm_sx1276');
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var count = 0;
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var interval;
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/************** Functions **************/
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function transmit(sensor)
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{
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var buffer = "Ping " + count;
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count++;
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console.log("Sending... " + buffer);
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sensor.sendStr(buffer, 3000);
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sensor.setSleep();
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}
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function receive(sensor)
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{
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console.log("Attempting to receive... ");
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var rv = 0;
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rv = sensor.setRx(3000);
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if (rv)
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{
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console.log("setRx returned " + rv);
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}
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else
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{
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console.log("Received Buffer: " + sensor.getRxBufferStr());
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}
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sensor.setSleep();
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}
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/************** Main code **************/
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// Instantiate an SX1276 using default parameters
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var sensor = new sensorObj.SX1276();
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console.log("Specify an argument to go into receive mode. Default is transmit");
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// 915Mhz
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sensor.setChannel(915000000)
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// LORA configuration (rx and tx must be configured the same):
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// Tx output power = 14 dBm
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// LORA bandwidth = 125000 (can also be 250K and 500K)
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// LORA spreading factor = 7
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// LORA coding rate = 1 (4/5)
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// LORA preamble len = 8
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// LORA symbol timeout = 5
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// LORA fixed payload = false
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// LORA IQ inversion = false
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// LORA (rx) continuous Rx mode = true
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sensor.setTxConfig(sensorObj.SX1276.MODEM_LORA, 14, 0, 125000,
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7, 1, 8, false, true, false, 0, false);
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sensor.setRxConfig(sensorObj.SX1276.MODEM_LORA, 125000, 7,
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1, 0, 8, 5, false, 0, true, false, 0, false, true);
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if (process.argv.length > 2)
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{
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// receive mode
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interval = setInterval(function() { receive(sensor); }, 250);
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}
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else
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{
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// transmit mode
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interval = setInterval(function() { transmit(sensor); }, 1000);
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}
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/************** Exit code **************/
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process.on('SIGINT', function()
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{
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sensor = null;
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sensorObj.cleanUp();
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sensorObj = null;
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console.log("Exiting...");
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process.exit(0);
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});
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