Tobias Jansen / Mbed OS Lorawan_Version_0_1

This is an example application based on Mbed-OS LoRaWAN protocol APIs. The Mbed-OS LoRaWAN stack implementation is compliant with LoRaWAN v1.0.2 specification.

Dependencies:   Lorawan_Version_0_1

Dependents:   Lorawan_Version_0_1

main.cpp@61:2b30d8e75fe7, 2019-11-28 (annotated)

Committer:
jacktractive
Date:
Thu Nov 28 15:44:17 2019 +0000
Revision:
61:2b30d8e75fe7
Parent:
60:65d39aaa1714
Child:
62:35d41c8b9419
V1.0 Laeuft

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:7037ed05f54f 1 /**
mbed_official 0:7037ed05f54f 2 * Copyright (c) 2017, Arm Limited and affiliates.
mbed_official 0:7037ed05f54f 3 * SPDX-License-Identifier: Apache-2.0
mbed_official 0:7037ed05f54f 4 *
mbed_official 0:7037ed05f54f 5 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 0:7037ed05f54f 6 * you may not use this file except in compliance with the License.
mbed_official 0:7037ed05f54f 7 * You may obtain a copy of the License at
mbed_official 0:7037ed05f54f 8 *
mbed_official 0:7037ed05f54f 9 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 0:7037ed05f54f 10 *
mbed_official 0:7037ed05f54f 11 * Unless required by applicable law or agreed to in writing, software
mbed_official 0:7037ed05f54f 12 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 0:7037ed05f54f 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 0:7037ed05f54f 14 * See the License for the specific language governing permissions and
mbed_official 0:7037ed05f54f 15 * limitations under the License.
mbed_official 0:7037ed05f54f 16 */
mbed_official 0:7037ed05f54f 17 #include <stdio.h>
mbed_official 3:8c7198d1a2a1 18
mbed_official 0:7037ed05f54f 19 #include "lorawan/LoRaWANInterface.h"
mbed_official 0:7037ed05f54f 20 #include "lorawan/system/lorawan_data_structures.h"
mbed_official 0:7037ed05f54f 21 #include "events/EventQueue.h"
mbed_official 0:7037ed05f54f 22
mbed_official 0:7037ed05f54f 23 // Application helpers
mbed_official 0:7037ed05f54f 24 #include "DummySensor.h"
mbed_official 0:7037ed05f54f 25 #include "trace_helper.h"
mbed_official 0:7037ed05f54f 26 #include "lora_radio_helper.h"
mbed_official 0:7037ed05f54f 27
mbed_official 0:7037ed05f54f 28 using namespace events;
mbed_official 0:7037ed05f54f 29
mbed_official 12:5015dfead3f2 30 // Max payload size can be LORAMAC_PHY_MAXPAYLOAD.
mbed_official 12:5015dfead3f2 31 // This example only communicates with much shorter messages (<30 bytes).
mbed_official 12:5015dfead3f2 32 // If longer messages are used, these buffers must be changed accordingly.
mbed_official 12:5015dfead3f2 33 uint8_t tx_buffer[30];
mbed_official 12:5015dfead3f2 34 uint8_t rx_buffer[30];
mbed_official 0:7037ed05f54f 35
mbed_official 0:7037ed05f54f 36 /*
mbed_official 0:7037ed05f54f 37 * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing
mbed_official 0:7037ed05f54f 38 */
jacktractive 61:2b30d8e75fe7 39 #define TX_TIMER 100000
mbed_official 0:7037ed05f54f 40
mbed_official 0:7037ed05f54f 41 /**
mbed_official 0:7037ed05f54f 42 * Maximum number of events for the event queue.
mbed_official 12:5015dfead3f2 43 * 10 is the safe number for the stack events, however, if application
mbed_official 0:7037ed05f54f 44 * also uses the queue for whatever purposes, this number should be increased.
mbed_official 0:7037ed05f54f 45 */
mbed_official 12:5015dfead3f2 46 #define MAX_NUMBER_OF_EVENTS 10
mbed_official 0:7037ed05f54f 47
mbed_official 0:7037ed05f54f 48 /**
mbed_official 0:7037ed05f54f 49 * Maximum number of retries for CONFIRMED messages before giving up
mbed_official 0:7037ed05f54f 50 */
mbed_official 0:7037ed05f54f 51 #define CONFIRMED_MSG_RETRY_COUNTER 3
mbed_official 0:7037ed05f54f 52
mbed_official 0:7037ed05f54f 53 /**
mbed_official 0:7037ed05f54f 54 * Dummy pin for dummy sensor
mbed_official 0:7037ed05f54f 55 */
mbed_official 0:7037ed05f54f 56 #define PC_9 0
mbed_official 0:7037ed05f54f 57
jacktractive 61:2b30d8e75fe7 58
jacktractive 61:2b30d8e75fe7 59 #include "Fahrrad.h"
mbed_official 0:7037ed05f54f 60 /**
mbed_official 0:7037ed05f54f 61 * Dummy sensor class object
mbed_official 0:7037ed05f54f 62 */
mbed_official 0:7037ed05f54f 63 DS1820 ds1820(PC_9);
mbed_official 0:7037ed05f54f 64
mbed_official 0:7037ed05f54f 65 /**
mbed_official 0:7037ed05f54f 66 * This event queue is the global event queue for both the
mbed_official 0:7037ed05f54f 67 * application and stack. To conserve memory, the stack is designed to run
mbed_official 0:7037ed05f54f 68 * in the same thread as the application and the application is responsible for
mbed_official 0:7037ed05f54f 69 * providing an event queue to the stack that will be used for ISR deferment as
mbed_official 0:7037ed05f54f 70 * well as application information event queuing.
mbed_official 0:7037ed05f54f 71 */
mbed_official 46:a124538e2891 72 static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS *EVENTS_EVENT_SIZE);
mbed_official 0:7037ed05f54f 73
mbed_official 0:7037ed05f54f 74 /**
mbed_official 0:7037ed05f54f 75 * Event handler.
mbed_official 0:7037ed05f54f 76 *
mbed_official 0:7037ed05f54f 77 * This will be passed to the LoRaWAN stack to queue events for the
mbed_official 0:7037ed05f54f 78 * application which in turn drive the application.
mbed_official 0:7037ed05f54f 79 */
mbed_official 0:7037ed05f54f 80 static void lora_event_handler(lorawan_event_t event);
mbed_official 0:7037ed05f54f 81
mbed_official 0:7037ed05f54f 82 /**
mbed_official 46:a124538e2891 83 * Constructing Mbed LoRaWANInterface and passing it the radio object from lora_radio_helper.
mbed_official 0:7037ed05f54f 84 */
mbed_official 2:dc95ac6d6d4e 85 static LoRaWANInterface lorawan(radio);
mbed_official 0:7037ed05f54f 86
mbed_official 0:7037ed05f54f 87 /**
mbed_official 0:7037ed05f54f 88 * Application specific callbacks
mbed_official 0:7037ed05f54f 89 */
mbed_official 0:7037ed05f54f 90 static lorawan_app_callbacks_t callbacks;
mbed_official 0:7037ed05f54f 91
mbed_official 0:7037ed05f54f 92 /**
mbed_official 0:7037ed05f54f 93 * Entry point for application
mbed_official 0:7037ed05f54f 94 */
mbed_official 46:a124538e2891 95 int main(void)
mbed_official 0:7037ed05f54f 96 {
mbed_official 0:7037ed05f54f 97 // setup tracing
mbed_official 0:7037ed05f54f 98 setup_trace();
jacktractive 61:2b30d8e75fe7 99
jacktractive 61:2b30d8e75fe7 100 Starte_Fahrrad_Eventmanager(); //schonmal die Fahrrad Events Initialisieren falls wir hier auch ohne lorawan empfang was machen wollen
mbed_official 0:7037ed05f54f 101
mbed_official 0:7037ed05f54f 102 // stores the status of a call to LoRaWAN protocol
mbed_official 0:7037ed05f54f 103 lorawan_status_t retcode;
mbed_official 0:7037ed05f54f 104
mbed_official 0:7037ed05f54f 105 // Initialize LoRaWAN stack
mbed_official 2:dc95ac6d6d4e 106 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 107 printf("\r\n LoRa initialization failed! \r\n");
mbed_official 0:7037ed05f54f 108 return -1;
mbed_official 0:7037ed05f54f 109 }
mbed_official 0:7037ed05f54f 110
mbed_official 0:7037ed05f54f 111 printf("\r\n Mbed LoRaWANStack initialized \r\n");
mbed_official 0:7037ed05f54f 112
mbed_official 0:7037ed05f54f 113 // prepare application callbacks
mbed_official 0:7037ed05f54f 114 callbacks.events = mbed::callback(lora_event_handler);
mbed_official 2:dc95ac6d6d4e 115 lorawan.add_app_callbacks(&callbacks);
mbed_official 0:7037ed05f54f 116
mbed_official 0:7037ed05f54f 117 // Set number of retries in case of CONFIRMED messages
mbed_official 2:dc95ac6d6d4e 118 if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER)
mbed_official 46:a124538e2891 119 != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 120 printf("\r\n set_confirmed_msg_retries failed! \r\n\r\n");
mbed_official 0:7037ed05f54f 121 return -1;
mbed_official 0:7037ed05f54f 122 }
mbed_official 0:7037ed05f54f 123
mbed_official 0:7037ed05f54f 124 printf("\r\n CONFIRMED message retries : %d \r\n",
mbed_official 0:7037ed05f54f 125 CONFIRMED_MSG_RETRY_COUNTER);
mbed_official 0:7037ed05f54f 126
mbed_official 0:7037ed05f54f 127 // Enable adaptive data rate
mbed_official 2:dc95ac6d6d4e 128 if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 129 printf("\r\n enable_adaptive_datarate failed! \r\n");
mbed_official 0:7037ed05f54f 130 return -1;
mbed_official 0:7037ed05f54f 131 }
mbed_official 0:7037ed05f54f 132
mbed_official 0:7037ed05f54f 133 printf("\r\n Adaptive data rate (ADR) - Enabled \r\n");
mbed_official 0:7037ed05f54f 134
mbed_official 2:dc95ac6d6d4e 135 retcode = lorawan.connect();
mbed_official 0:7037ed05f54f 136
mbed_official 0:7037ed05f54f 137 if (retcode == LORAWAN_STATUS_OK ||
mbed_official 46:a124538e2891 138 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
mbed_official 0:7037ed05f54f 139 } else {
mbed_official 0:7037ed05f54f 140 printf("\r\n Connection error, code = %d \r\n", retcode);
mbed_official 0:7037ed05f54f 141 return -1;
mbed_official 0:7037ed05f54f 142 }
mbed_official 0:7037ed05f54f 143
mbed_official 0:7037ed05f54f 144 printf("\r\n Connection - In Progress ...\r\n");
mbed_official 0:7037ed05f54f 145
mbed_official 0:7037ed05f54f 146 // make your event queue dispatching events forever
mbed_official 0:7037ed05f54f 147 ev_queue.dispatch_forever();
mbed_official 3:8c7198d1a2a1 148
jacktractive 61:2b30d8e75fe7 149
mbed_official 3:8c7198d1a2a1 150 return 0;
mbed_official 0:7037ed05f54f 151 }
mbed_official 0:7037ed05f54f 152
mbed_official 0:7037ed05f54f 153 /**
mbed_official 0:7037ed05f54f 154 * Sends a message to the Network Server
mbed_official 0:7037ed05f54f 155 */
mbed_official 0:7037ed05f54f 156 static void send_message()
mbed_official 0:7037ed05f54f 157 {
mbed_official 0:7037ed05f54f 158 uint16_t packet_len;
mbed_official 0:7037ed05f54f 159 int16_t retcode;
mbed_official 56:39847849d219 160 int32_t sensor_value;
mbed_official 0:7037ed05f54f 161
mbed_official 0:7037ed05f54f 162 if (ds1820.begin()) {
mbed_official 0:7037ed05f54f 163 ds1820.startConversion();
mbed_official 0:7037ed05f54f 164 sensor_value = ds1820.read();
mbed_official 56:39847849d219 165 printf("\r\n Dummy Sensor Value = %d \r\n", sensor_value);
mbed_official 0:7037ed05f54f 166 ds1820.startConversion();
mbed_official 0:7037ed05f54f 167 } else {
mbed_official 0:7037ed05f54f 168 printf("\r\n No sensor found \r\n");
mbed_official 0:7037ed05f54f 169 return;
mbed_official 0:7037ed05f54f 170 }
mbed_official 0:7037ed05f54f 171
mbed_official 56:39847849d219 172 packet_len = sprintf((char *) tx_buffer, "Dummy Sensor Value is %d",
mbed_official 46:a124538e2891 173 sensor_value);
mbed_official 0:7037ed05f54f 174
mbed_official 2:dc95ac6d6d4e 175 retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len,
mbed_official 47:b6d132f1079f 176 MSG_UNCONFIRMED_FLAG);
mbed_official 0:7037ed05f54f 177
mbed_official 0:7037ed05f54f 178 if (retcode < 0) {
mbed_official 0:7037ed05f54f 179 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n")
mbed_official 46:a124538e2891 180 : printf("\r\n send() - Error code %d \r\n", retcode);
mbed_official 26:f07f5febf97f 181
mbed_official 26:f07f5febf97f 182 if (retcode == LORAWAN_STATUS_WOULD_BLOCK) {
mbed_official 26:f07f5febf97f 183 //retry in 3 seconds
mbed_official 26:f07f5febf97f 184 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 185 ev_queue.call_in(3000, send_message);
mbed_official 26:f07f5febf97f 186 }
mbed_official 26:f07f5febf97f 187 }
mbed_official 0:7037ed05f54f 188 return;
mbed_official 0:7037ed05f54f 189 }
mbed_official 0:7037ed05f54f 190
mbed_official 0:7037ed05f54f 191 printf("\r\n %d bytes scheduled for transmission \r\n", retcode);
mbed_official 12:5015dfead3f2 192 memset(tx_buffer, 0, sizeof(tx_buffer));
mbed_official 0:7037ed05f54f 193 }
mbed_official 0:7037ed05f54f 194
mbed_official 0:7037ed05f54f 195 /**
mbed_official 0:7037ed05f54f 196 * Receive a message from the Network Server
mbed_official 0:7037ed05f54f 197 */
mbed_official 0:7037ed05f54f 198 static void receive_message()
mbed_official 0:7037ed05f54f 199 {
mbed_official 47:b6d132f1079f 200 uint8_t port;
mbed_official 47:b6d132f1079f 201 int flags;
mbed_official 47:b6d132f1079f 202 int16_t retcode = lorawan.receive(rx_buffer, sizeof(rx_buffer), port, flags);
mbed_official 0:7037ed05f54f 203
mbed_official 0:7037ed05f54f 204 if (retcode < 0) {
mbed_official 0:7037ed05f54f 205 printf("\r\n receive() - Error code %d \r\n", retcode);
mbed_official 0:7037ed05f54f 206 return;
mbed_official 0:7037ed05f54f 207 }
mbed_official 0:7037ed05f54f 208
mbed_official 47:b6d132f1079f 209 printf(" RX Data on port %u (%d bytes): ", port, retcode);
mbed_official 0:7037ed05f54f 210 for (uint8_t i = 0; i < retcode; i++) {
mbed_official 47:b6d132f1079f 211 printf("%02x ", rx_buffer[i]);
mbed_official 0:7037ed05f54f 212 }
jacktractive 61:2b30d8e75fe7 213
jacktractive 61:2b30d8e75fe7 214 if (rx_buffer[0] == 0xa0) Licht_aus();
jacktractive 61:2b30d8e75fe7 215 if (rx_buffer[0] == 0xa1)Licht_an();
jacktractive 61:2b30d8e75fe7 216 if (rx_buffer[0] == 0xa2) Blinken_ein();
jacktractive 61:2b30d8e75fe7 217 if (rx_buffer[0] == 0xa3) Blinken_aus() ;
jacktractive 61:2b30d8e75fe7 218
jacktractive 61:2b30d8e75fe7 219 if (rx_buffer[0] == 0xb1)GPS_anfordern();
jacktractive 60:65d39aaa1714 220
mbed_official 47:b6d132f1079f 221 printf("\r\n");
mbed_official 47:b6d132f1079f 222
mbed_official 12:5015dfead3f2 223 memset(rx_buffer, 0, sizeof(rx_buffer));
mbed_official 0:7037ed05f54f 224 }
mbed_official 0:7037ed05f54f 225
mbed_official 0:7037ed05f54f 226 /**
mbed_official 0:7037ed05f54f 227 * Event handler
mbed_official 0:7037ed05f54f 228 */
mbed_official 0:7037ed05f54f 229 static void lora_event_handler(lorawan_event_t event)
mbed_official 0:7037ed05f54f 230 {
mbed_official 0:7037ed05f54f 231 switch (event) {
mbed_official 0:7037ed05f54f 232 case CONNECTED:
mbed_official 0:7037ed05f54f 233 printf("\r\n Connection - Successful \r\n");
mbed_official 0:7037ed05f54f 234 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 235 send_message();
mbed_official 0:7037ed05f54f 236 } else {
mbed_official 0:7037ed05f54f 237 ev_queue.call_every(TX_TIMER, send_message);
mbed_official 0:7037ed05f54f 238 }
mbed_official 0:7037ed05f54f 239
mbed_official 0:7037ed05f54f 240 break;
mbed_official 0:7037ed05f54f 241 case DISCONNECTED:
mbed_official 0:7037ed05f54f 242 ev_queue.break_dispatch();
mbed_official 0:7037ed05f54f 243 printf("\r\n Disconnected Successfully \r\n");
mbed_official 0:7037ed05f54f 244 break;
mbed_official 0:7037ed05f54f 245 case TX_DONE:
mbed_official 0:7037ed05f54f 246 printf("\r\n Message Sent to Network Server \r\n");
mbed_official 0:7037ed05f54f 247 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 248 send_message();
mbed_official 0:7037ed05f54f 249 }
mbed_official 0:7037ed05f54f 250 break;
mbed_official 0:7037ed05f54f 251 case TX_TIMEOUT:
mbed_official 0:7037ed05f54f 252 case TX_ERROR:
mbed_official 0:7037ed05f54f 253 case TX_CRYPTO_ERROR:
mbed_official 0:7037ed05f54f 254 case TX_SCHEDULING_ERROR:
mbed_official 0:7037ed05f54f 255 printf("\r\n Transmission Error - EventCode = %d \r\n", event);
mbed_official 0:7037ed05f54f 256 // try again
mbed_official 0:7037ed05f54f 257 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 258 send_message();
mbed_official 0:7037ed05f54f 259 }
mbed_official 0:7037ed05f54f 260 break;
mbed_official 0:7037ed05f54f 261 case RX_DONE:
mbed_official 0:7037ed05f54f 262 printf("\r\n Received message from Network Server \r\n");
mbed_official 0:7037ed05f54f 263 receive_message();
mbed_official 0:7037ed05f54f 264 break;
mbed_official 0:7037ed05f54f 265 case RX_TIMEOUT:
mbed_official 0:7037ed05f54f 266 case RX_ERROR:
mbed_official 0:7037ed05f54f 267 printf("\r\n Error in reception - Code = %d \r\n", event);
mbed_official 0:7037ed05f54f 268 break;
mbed_official 0:7037ed05f54f 269 case JOIN_FAILURE:
mbed_official 0:7037ed05f54f 270 printf("\r\n OTAA Failed - Check Keys \r\n");
mbed_official 0:7037ed05f54f 271 break;
mbed_official 26:f07f5febf97f 272 case UPLINK_REQUIRED:
mbed_official 26:f07f5febf97f 273 printf("\r\n Uplink required by NS \r\n");
mbed_official 26:f07f5febf97f 274 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 275 send_message();
mbed_official 26:f07f5febf97f 276 }
mbed_official 26:f07f5febf97f 277 break;
mbed_official 0:7037ed05f54f 278 default:
mbed_official 0:7037ed05f54f 279 MBED_ASSERT("Unknown Event");
mbed_official 0:7037ed05f54f 280 }
mbed_official 0:7037ed05f54f 281 }
mbed_official 0:7037ed05f54f 282
mbed_official 0:7037ed05f54f 283 // EOF