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This requires a new MRAA with UART sendbreak support. Signed-off-by: Jon Trulson <jtrulson@ics.com>
112 lines
3.9 KiB
Java
112 lines
3.9 KiB
Java
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2017 Intel Corporation.
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*
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* The MIT License
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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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import upm_rn2903.*;
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public class RN2903_P2P_TX_Example
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{
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private static String defaultDev = "/dev/ttyUSB0";
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public static void main(String[] args) throws InterruptedException
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{
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// ! [Interesting]
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if (args.length > 0)
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defaultDev = args[0];
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System.out.println("Using device " + defaultDev);
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// Instantiate a RN2903 sensor on defaultDev at 57600 baud.
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RN2903 sensor = new RN2903(defaultDev,
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javaupm_rn2903.RN2903_DEFAULT_BAUDRATE);
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// To use an internal UART understood by MRAA, use the following
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// to inititialize rather than the above, which by default uses a
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// tty path.
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//
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// RN2903 sensor = new RN2903(defaultDev,
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// upm_rn2903.javaupm_rn2903.RN2903_DEFAULT_BAUDRATE);
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// enable debugging
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// sensor.setDebug(true);
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// get version
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if (sensor.command("sys get ver")
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!= RN2903_RESPONSE_T.RN2903_RESPONSE_OK)
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{
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System.out.println("Failed to retrieve device version string");
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System.exit(1);
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}
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System.out.println("Firmware version: " + sensor.getResponse());
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System.out.println("Hardware EUI: " + sensor.getHardwareEUI());
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// For this example, we will just try transmitting a packet over
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// LoRa. We reset the device to defaults, and we do not make any
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// adjustments to the radio configuration. You will probably want
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// to do so for a real life application.
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// The first thing to do is to suspend the LoRaWAN stack on the device.
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sensor.macPause();
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// the default radio watchdog timer is set for 15 seconds, so we
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// will send a packet every 10 seconds. In reality, local
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// restrictions limit the amount of time on the air, so in a real
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// implementation, you would not want to send packets that
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// frequently.
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Integer count = 0;
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while (true)
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{
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String output = "Ping " + count.toString();
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count++;
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// All payloads must be hex encoded
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String payload = sensor.toHex(output);
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System.out.println("Transmitting a packet, data: '"
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+ output
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+ "' -> hex: '"
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+ payload
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+ "'");
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RN2903_RESPONSE_T rv = sensor.radioTx(payload);
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if (rv == RN2903_RESPONSE_T.RN2903_RESPONSE_OK)
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System.out.println("Transmit successful.");
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else
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System.out.println("Transmit failed with code "
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+ rv.toString());
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System.out.println();
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Thread.sleep(10000);
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}
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// ! [Interesting]
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}
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}
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