/* * Author: Jon Trulson * Copyright (c) 2017 Intel Corporation. * * The MIT License * * 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. */ import upm_rn2903.*; public class RN2903_Example { private static String defaultDev = "/dev/ttyUSB0"; public static void main(String[] args) throws InterruptedException { // ! [Interesting] if (args.length > 0) defaultDev = args[0]; System.out.println("Using device " + defaultDev); // Instantiate a RN2903 sensor on defaultDev at 57600 baud. RN2903 sensor = new RN2903(defaultDev, javaupm_rn2903.RN2903_DEFAULT_BAUDRATE); // To use an internal UART understood by MRAA, use the following // to inititialize rather than the above, which by default uses a // tty path. // // RN2903 sensor = new RN2903(defaultDev, // upm_rn2903.javaupm_rn2903.RN2903_DEFAULT_BAUDRATE); // enable debugging // sensor.setDebug(true); // get version if (sensor.command("sys get ver") != RN2903_RESPONSE_T.RN2903_RESPONSE_OK) { System.out.println("Failed to retrieve device version string"); System.exit(1); } System.out.println("Firmware version: " + sensor.getResponse()); System.out.println("Hardware EUI: " + sensor.getHardwareEUI()); // we can support two types of join, OTAA and ABP. Each requires // that certain parameters be set first. We will only attempt ABP // joining with this example since it's the only one that can // succeed without actual configuration. In both cases, if you // are actually attempting to join a real LoRaWAN network, you // must change the parameters below to match the network you are // attempting to join. // For OTAA, you need to supply valid Device EUI, Application EUI, // and Application key: // // sensor.setDeviceEUI("0011223344556677"); // sensor.setApplicationEUI("0011223344556677"); // sensor.setApplicationKey("01234567012345670123456701234567"); // // RN2903_JOIN_STATUS_T rv = sensor.join(RN2903_JOIN_TYPE_OTAA); // A successful join will return RN2903_JOIN_STATUS_ACCEPTED (0). // cout << "JOIN: got rv " << int(rv) << endl; // Try an ABP join. Note, these parameters are made up. For a // real network, you will want to use the correct values // obviously. For an ABP join, you need to supply the Device // Address, Network Session Key, and the Application Session Key. sensor.setDeviceAddr("00112233"); sensor.setNetworkSessionKey("00112233001122330011223300112233"); sensor.setApplicationSessionKey("00112233001122330011223300112233"); RN2903_JOIN_STATUS_T rv = sensor.join(RN2903_JOIN_TYPE_T.RN2903_JOIN_TYPE_ABP); if (rv == RN2903_JOIN_STATUS_T.RN2903_JOIN_STATUS_ACCEPTED) { System.out.println("Join successful."); // All transmit payloads must be hex encoded strings, so // pretend we have a temperature sensor that gave us a value // of 25.6 C, and we want to transmit it. String faketemp = "25.6"; System.out.println("Transmitting a packet..."); RN2903_MAC_TX_STATUS_T trv = sensor.macTx(RN2903_MAC_MSG_TYPE_T.RN2903_MAC_MSG_TYPE_UNCONFIRMED, 1, // port number sensor.toHex(faketemp)); if (trv == RN2903_MAC_TX_STATUS_T.RN2903_MAC_TX_STATUS_TX_OK) System.out.println("Transmit successful."); else { // check to see if we got a downlink packet if (trv == RN2903_MAC_TX_STATUS_T.RN2903_MAC_TX_STATUS_RX_RECEIVED) { System.out.println("Transmit successful, downlink packet received: " + sensor.getResponse()); } else { System.out.println("Transmit failed with code " + trv); } } } else { System.out.println("Join failed with code " + rv); } System.out.println("Exiting..."); // ! [Interesting] } }