philippe laurent / Mbed OS res3_20_21_lorawan_base

code base MDOT lorawan

Dependencies:   Servo Cayenne-LPP

main.cpp@57:5ec0379d69d6, 2019-09-30 (annotated)

Committer:
superphil06
Date:
Mon Sep 30 18:06:49 2019 +0000
Revision:
57:5ec0379d69d6
Parent:
56:39847849d219
Child:
58:81c66fac6476
exemple lorawan pour carte MDOT avec authentification ABP et transmission des trames de donnees au format cayenne

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>
superphil06 57:5ec0379d69d6 18 #include "CayenneLPP.h"
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
superphil06 57:5ec0379d69d6 36 #define MAX_SIZE 200 // depends on spreading factor and frequency used
superphil06 57:5ec0379d69d6 37
superphil06 57:5ec0379d69d6 38 CayenneLPP Payload(MAX_SIZE);
superphil06 57:5ec0379d69d6 39
superphil06 57:5ec0379d69d6 40 float celsius = -4.1;
superphil06 57:5ec0379d69d6 41 float accel[] = {1.234, -1.234, 0};
superphil06 57:5ec0379d69d6 42 float rh = 30;
superphil06 57:5ec0379d69d6 43 float hpa = 1014.1;
superphil06 57:5ec0379d69d6 44 float latitude = 42.3519;
superphil06 57:5ec0379d69d6 45 float longitude = -87.9094;
superphil06 57:5ec0379d69d6 46 float altitude=10;
superphil06 57:5ec0379d69d6 47
superphil06 57:5ec0379d69d6 48 int size = 0;
superphil06 57:5ec0379d69d6 49
superphil06 57:5ec0379d69d6 50
superphil06 57:5ec0379d69d6 51
superphil06 57:5ec0379d69d6 52
mbed_official 0:7037ed05f54f 53 /*
mbed_official 0:7037ed05f54f 54 * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing
mbed_official 0:7037ed05f54f 55 */
mbed_official 0:7037ed05f54f 56 #define TX_TIMER 10000
mbed_official 0:7037ed05f54f 57
mbed_official 0:7037ed05f54f 58 /**
mbed_official 0:7037ed05f54f 59 * Maximum number of events for the event queue.
mbed_official 12:5015dfead3f2 60 * 10 is the safe number for the stack events, however, if application
mbed_official 0:7037ed05f54f 61 * also uses the queue for whatever purposes, this number should be increased.
mbed_official 0:7037ed05f54f 62 */
mbed_official 12:5015dfead3f2 63 #define MAX_NUMBER_OF_EVENTS 10
mbed_official 0:7037ed05f54f 64
mbed_official 0:7037ed05f54f 65 /**
mbed_official 0:7037ed05f54f 66 * Maximum number of retries for CONFIRMED messages before giving up
mbed_official 0:7037ed05f54f 67 */
mbed_official 0:7037ed05f54f 68 #define CONFIRMED_MSG_RETRY_COUNTER 3
mbed_official 0:7037ed05f54f 69
mbed_official 0:7037ed05f54f 70 /**
mbed_official 0:7037ed05f54f 71 * Dummy pin for dummy sensor
mbed_official 0:7037ed05f54f 72 */
mbed_official 0:7037ed05f54f 73 #define PC_9 0
mbed_official 0:7037ed05f54f 74
mbed_official 0:7037ed05f54f 75 /**
mbed_official 0:7037ed05f54f 76 * Dummy sensor class object
mbed_official 0:7037ed05f54f 77 */
mbed_official 0:7037ed05f54f 78 DS1820 ds1820(PC_9);
mbed_official 0:7037ed05f54f 79
mbed_official 0:7037ed05f54f 80 /**
mbed_official 0:7037ed05f54f 81 * This event queue is the global event queue for both the
mbed_official 0:7037ed05f54f 82 * application and stack. To conserve memory, the stack is designed to run
mbed_official 0:7037ed05f54f 83 * in the same thread as the application and the application is responsible for
mbed_official 0:7037ed05f54f 84 * providing an event queue to the stack that will be used for ISR deferment as
mbed_official 0:7037ed05f54f 85 * well as application information event queuing.
mbed_official 0:7037ed05f54f 86 */
mbed_official 46:a124538e2891 87 static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS *EVENTS_EVENT_SIZE);
mbed_official 0:7037ed05f54f 88
mbed_official 0:7037ed05f54f 89 /**
mbed_official 0:7037ed05f54f 90 * Event handler.
mbed_official 0:7037ed05f54f 91 *
mbed_official 0:7037ed05f54f 92 * This will be passed to the LoRaWAN stack to queue events for the
mbed_official 0:7037ed05f54f 93 * application which in turn drive the application.
mbed_official 0:7037ed05f54f 94 */
mbed_official 0:7037ed05f54f 95 static void lora_event_handler(lorawan_event_t event);
mbed_official 0:7037ed05f54f 96
mbed_official 0:7037ed05f54f 97 /**
mbed_official 46:a124538e2891 98 * Constructing Mbed LoRaWANInterface and passing it the radio object from lora_radio_helper.
mbed_official 0:7037ed05f54f 99 */
mbed_official 2:dc95ac6d6d4e 100 static LoRaWANInterface lorawan(radio);
mbed_official 0:7037ed05f54f 101
mbed_official 0:7037ed05f54f 102 /**
mbed_official 0:7037ed05f54f 103 * Application specific callbacks
mbed_official 0:7037ed05f54f 104 */
mbed_official 0:7037ed05f54f 105 static lorawan_app_callbacks_t callbacks;
mbed_official 0:7037ed05f54f 106
mbed_official 0:7037ed05f54f 107 /**
mbed_official 0:7037ed05f54f 108 * Entry point for application
mbed_official 0:7037ed05f54f 109 */
mbed_official 46:a124538e2891 110 int main(void)
mbed_official 0:7037ed05f54f 111 {
mbed_official 0:7037ed05f54f 112 // setup tracing
mbed_official 0:7037ed05f54f 113 setup_trace();
mbed_official 0:7037ed05f54f 114
mbed_official 0:7037ed05f54f 115 // stores the status of a call to LoRaWAN protocol
mbed_official 0:7037ed05f54f 116 lorawan_status_t retcode;
mbed_official 0:7037ed05f54f 117
mbed_official 0:7037ed05f54f 118 // Initialize LoRaWAN stack
mbed_official 2:dc95ac6d6d4e 119 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 120 printf("\r\n LoRa initialization failed! \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 Mbed LoRaWANStack initialized \r\n");
mbed_official 0:7037ed05f54f 125
mbed_official 0:7037ed05f54f 126 // prepare application callbacks
mbed_official 0:7037ed05f54f 127 callbacks.events = mbed::callback(lora_event_handler);
mbed_official 2:dc95ac6d6d4e 128 lorawan.add_app_callbacks(&callbacks);
mbed_official 0:7037ed05f54f 129
mbed_official 0:7037ed05f54f 130 // Set number of retries in case of CONFIRMED messages
mbed_official 2:dc95ac6d6d4e 131 if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER)
mbed_official 46:a124538e2891 132 != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 133 printf("\r\n set_confirmed_msg_retries failed! \r\n\r\n");
mbed_official 0:7037ed05f54f 134 return -1;
mbed_official 0:7037ed05f54f 135 }
mbed_official 0:7037ed05f54f 136
mbed_official 0:7037ed05f54f 137 printf("\r\n CONFIRMED message retries : %d \r\n",
mbed_official 0:7037ed05f54f 138 CONFIRMED_MSG_RETRY_COUNTER);
mbed_official 0:7037ed05f54f 139
mbed_official 0:7037ed05f54f 140 // Enable adaptive data rate
mbed_official 2:dc95ac6d6d4e 141 if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 142 printf("\r\n enable_adaptive_datarate failed! \r\n");
mbed_official 0:7037ed05f54f 143 return -1;
mbed_official 0:7037ed05f54f 144 }
mbed_official 0:7037ed05f54f 145
mbed_official 0:7037ed05f54f 146 printf("\r\n Adaptive data rate (ADR) - Enabled \r\n");
mbed_official 0:7037ed05f54f 147
mbed_official 2:dc95ac6d6d4e 148 retcode = lorawan.connect();
mbed_official 0:7037ed05f54f 149
mbed_official 0:7037ed05f54f 150 if (retcode == LORAWAN_STATUS_OK ||
mbed_official 46:a124538e2891 151 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
mbed_official 0:7037ed05f54f 152 } else {
mbed_official 0:7037ed05f54f 153 printf("\r\n Connection error, code = %d \r\n", retcode);
mbed_official 0:7037ed05f54f 154 return -1;
mbed_official 0:7037ed05f54f 155 }
mbed_official 0:7037ed05f54f 156
mbed_official 0:7037ed05f54f 157 printf("\r\n Connection - In Progress ...\r\n");
mbed_official 0:7037ed05f54f 158
mbed_official 0:7037ed05f54f 159 // make your event queue dispatching events forever
mbed_official 0:7037ed05f54f 160 ev_queue.dispatch_forever();
mbed_official 3:8c7198d1a2a1 161
mbed_official 3:8c7198d1a2a1 162 return 0;
mbed_official 0:7037ed05f54f 163 }
mbed_official 0:7037ed05f54f 164
mbed_official 0:7037ed05f54f 165 /**
mbed_official 0:7037ed05f54f 166 * Sends a message to the Network Server
mbed_official 0:7037ed05f54f 167 */
mbed_official 0:7037ed05f54f 168 static void send_message()
superphil06 57:5ec0379d69d6 169
mbed_official 0:7037ed05f54f 170 {
superphil06 57:5ec0379d69d6 171
mbed_official 0:7037ed05f54f 172 uint16_t packet_len;
mbed_official 0:7037ed05f54f 173 int16_t retcode;
mbed_official 56:39847849d219 174 int32_t sensor_value;
mbed_official 0:7037ed05f54f 175
mbed_official 0:7037ed05f54f 176 if (ds1820.begin()) {
mbed_official 0:7037ed05f54f 177 ds1820.startConversion();
mbed_official 0:7037ed05f54f 178 sensor_value = ds1820.read();
mbed_official 56:39847849d219 179 printf("\r\n Dummy Sensor Value = %d \r\n", sensor_value);
mbed_official 0:7037ed05f54f 180 ds1820.startConversion();
mbed_official 0:7037ed05f54f 181 } else {
mbed_official 0:7037ed05f54f 182 printf("\r\n No sensor found \r\n");
mbed_official 0:7037ed05f54f 183 return;
mbed_official 0:7037ed05f54f 184 }
mbed_official 0:7037ed05f54f 185
superphil06 57:5ec0379d69d6 186 /* packet_len = sprintf((char *) tx_buffer, "Dummy Sensor Value is %d",
superphil06 57:5ec0379d69d6 187 sensor_value);*/
superphil06 57:5ec0379d69d6 188
superphil06 57:5ec0379d69d6 189 Payload.reset();
superphil06 57:5ec0379d69d6 190 size = Payload.addTemperature(1, (float) sensor_value*10.0);
superphil06 57:5ec0379d69d6 191 // LORA_SEND(Payload.getBuffer(), Payload.getSize());
superphil06 57:5ec0379d69d6 192 // Payload.copy(tx_buffer);
superphil06 57:5ec0379d69d6 193 retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, Payload.getBuffer(), Payload.getSize(),
superphil06 57:5ec0379d69d6 194 MSG_UNCONFIRMED_FLAG);
superphil06 57:5ec0379d69d6 195
mbed_official 0:7037ed05f54f 196
superphil06 57:5ec0379d69d6 197 /* retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len,
superphil06 57:5ec0379d69d6 198 MSG_UNCONFIRMED_FLAG);*/
mbed_official 0:7037ed05f54f 199
mbed_official 0:7037ed05f54f 200 if (retcode < 0) {
mbed_official 0:7037ed05f54f 201 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n")
mbed_official 46:a124538e2891 202 : printf("\r\n send() - Error code %d \r\n", retcode);
mbed_official 26:f07f5febf97f 203
mbed_official 26:f07f5febf97f 204 if (retcode == LORAWAN_STATUS_WOULD_BLOCK) {
mbed_official 26:f07f5febf97f 205 //retry in 3 seconds
mbed_official 26:f07f5febf97f 206 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 207 ev_queue.call_in(3000, send_message);
mbed_official 26:f07f5febf97f 208 }
mbed_official 26:f07f5febf97f 209 }
mbed_official 0:7037ed05f54f 210 return;
mbed_official 0:7037ed05f54f 211 }
mbed_official 0:7037ed05f54f 212
mbed_official 0:7037ed05f54f 213 printf("\r\n %d bytes scheduled for transmission \r\n", retcode);
mbed_official 12:5015dfead3f2 214 memset(tx_buffer, 0, sizeof(tx_buffer));
mbed_official 0:7037ed05f54f 215 }
mbed_official 0:7037ed05f54f 216
mbed_official 0:7037ed05f54f 217 /**
mbed_official 0:7037ed05f54f 218 * Receive a message from the Network Server
mbed_official 0:7037ed05f54f 219 */
mbed_official 0:7037ed05f54f 220 static void receive_message()
mbed_official 0:7037ed05f54f 221 {
mbed_official 47:b6d132f1079f 222 uint8_t port;
mbed_official 47:b6d132f1079f 223 int flags;
mbed_official 47:b6d132f1079f 224 int16_t retcode = lorawan.receive(rx_buffer, sizeof(rx_buffer), port, flags);
mbed_official 0:7037ed05f54f 225
mbed_official 0:7037ed05f54f 226 if (retcode < 0) {
mbed_official 0:7037ed05f54f 227 printf("\r\n receive() - Error code %d \r\n", retcode);
mbed_official 0:7037ed05f54f 228 return;
mbed_official 0:7037ed05f54f 229 }
mbed_official 0:7037ed05f54f 230
mbed_official 47:b6d132f1079f 231 printf(" RX Data on port %u (%d bytes): ", port, retcode);
mbed_official 0:7037ed05f54f 232 for (uint8_t i = 0; i < retcode; i++) {
mbed_official 47:b6d132f1079f 233 printf("%02x ", rx_buffer[i]);
mbed_official 0:7037ed05f54f 234 }
mbed_official 47:b6d132f1079f 235 printf("\r\n");
mbed_official 47:b6d132f1079f 236
mbed_official 12:5015dfead3f2 237 memset(rx_buffer, 0, sizeof(rx_buffer));
mbed_official 0:7037ed05f54f 238 }
mbed_official 0:7037ed05f54f 239
mbed_official 0:7037ed05f54f 240 /**
mbed_official 0:7037ed05f54f 241 * Event handler
mbed_official 0:7037ed05f54f 242 */
mbed_official 0:7037ed05f54f 243 static void lora_event_handler(lorawan_event_t event)
mbed_official 0:7037ed05f54f 244 {
mbed_official 0:7037ed05f54f 245 switch (event) {
mbed_official 0:7037ed05f54f 246 case CONNECTED:
mbed_official 0:7037ed05f54f 247 printf("\r\n Connection - Successful \r\n");
mbed_official 0:7037ed05f54f 248 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 249 send_message();
mbed_official 0:7037ed05f54f 250 } else {
mbed_official 0:7037ed05f54f 251 ev_queue.call_every(TX_TIMER, send_message);
mbed_official 0:7037ed05f54f 252 }
mbed_official 0:7037ed05f54f 253
mbed_official 0:7037ed05f54f 254 break;
mbed_official 0:7037ed05f54f 255 case DISCONNECTED:
mbed_official 0:7037ed05f54f 256 ev_queue.break_dispatch();
mbed_official 0:7037ed05f54f 257 printf("\r\n Disconnected Successfully \r\n");
mbed_official 0:7037ed05f54f 258 break;
mbed_official 0:7037ed05f54f 259 case TX_DONE:
mbed_official 0:7037ed05f54f 260 printf("\r\n Message Sent to Network Server \r\n");
mbed_official 0:7037ed05f54f 261 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 262 send_message();
mbed_official 0:7037ed05f54f 263 }
mbed_official 0:7037ed05f54f 264 break;
mbed_official 0:7037ed05f54f 265 case TX_TIMEOUT:
mbed_official 0:7037ed05f54f 266 case TX_ERROR:
mbed_official 0:7037ed05f54f 267 case TX_CRYPTO_ERROR:
mbed_official 0:7037ed05f54f 268 case TX_SCHEDULING_ERROR:
mbed_official 0:7037ed05f54f 269 printf("\r\n Transmission Error - EventCode = %d \r\n", event);
mbed_official 0:7037ed05f54f 270 // try again
mbed_official 0:7037ed05f54f 271 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 272 send_message();
mbed_official 0:7037ed05f54f 273 }
mbed_official 0:7037ed05f54f 274 break;
mbed_official 0:7037ed05f54f 275 case RX_DONE:
mbed_official 0:7037ed05f54f 276 printf("\r\n Received message from Network Server \r\n");
mbed_official 0:7037ed05f54f 277 receive_message();
mbed_official 0:7037ed05f54f 278 break;
mbed_official 0:7037ed05f54f 279 case RX_TIMEOUT:
mbed_official 0:7037ed05f54f 280 case RX_ERROR:
mbed_official 0:7037ed05f54f 281 printf("\r\n Error in reception - Code = %d \r\n", event);
mbed_official 0:7037ed05f54f 282 break;
mbed_official 0:7037ed05f54f 283 case JOIN_FAILURE:
mbed_official 0:7037ed05f54f 284 printf("\r\n OTAA Failed - Check Keys \r\n");
mbed_official 0:7037ed05f54f 285 break;
mbed_official 26:f07f5febf97f 286 case UPLINK_REQUIRED:
mbed_official 26:f07f5febf97f 287 printf("\r\n Uplink required by NS \r\n");
mbed_official 26:f07f5febf97f 288 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 289 send_message();
mbed_official 26:f07f5febf97f 290 }
mbed_official 26:f07f5febf97f 291 break;
mbed_official 0:7037ed05f54f 292 default:
mbed_official 0:7037ed05f54f 293 MBED_ASSERT("Unknown Event");
mbed_official 0:7037ed05f54f 294 }
mbed_official 0:7037ed05f54f 295 }
mbed_official 0:7037ed05f54f 296
mbed_official 0:7037ed05f54f 297 // EOF