Luis Enriquez / Mbed OS ER4Lora

Lora

Dependencies:   Cayenne-LPP HTU21D

main.cpp@49:120e166cb735, 2019-03-01 (annotated)

Committer:
lenriquez389
Date:
Fri Mar 01 23:54:58 2019 +0000
Revision:
49:120e166cb735
Parent:
47:b6d132f1079f 
er4Lora

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"
lenriquez389 49:120e166cb735 22 #include "HTU21D.h"
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"
lenriquez389 49:120e166cb735 27 #include "CayenneLPP.h"
lenriquez389 49:120e166cb735 28 #define MAX_SIZE 20
mbed_official 0:7037ed05f54f 29 using namespace events;
mbed_official 0:7037ed05f54f 30
mbed_official 12:5015dfead3f2 31 // Max payload size can be LORAMAC_PHY_MAXPAYLOAD.
mbed_official 12:5015dfead3f2 32 // This example only communicates with much shorter messages (<30 bytes).
mbed_official 12:5015dfead3f2 33 // If longer messages are used, these buffers must be changed accordingly.
lenriquez389 49:120e166cb735 34 //uint8_t tx_buffer[30];
mbed_official 12:5015dfead3f2 35 uint8_t rx_buffer[30];
lenriquez389 49:120e166cb735 36 CayenneLPP Payload(MAX_SIZE);
mbed_official 0:7037ed05f54f 37 /*
mbed_official 0:7037ed05f54f 38 * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing
mbed_official 0:7037ed05f54f 39 */
mbed_official 0:7037ed05f54f 40 #define TX_TIMER 10000
mbed_official 0:7037ed05f54f 41
mbed_official 0:7037ed05f54f 42 /**
mbed_official 0:7037ed05f54f 43 * Maximum number of events for the event queue.
mbed_official 12:5015dfead3f2 44 * 10 is the safe number for the stack events, however, if application
mbed_official 0:7037ed05f54f 45 * also uses the queue for whatever purposes, this number should be increased.
mbed_official 0:7037ed05f54f 46 */
mbed_official 12:5015dfead3f2 47 #define MAX_NUMBER_OF_EVENTS 10
mbed_official 0:7037ed05f54f 48
mbed_official 0:7037ed05f54f 49 /**
mbed_official 0:7037ed05f54f 50 * Maximum number of retries for CONFIRMED messages before giving up
mbed_official 0:7037ed05f54f 51 */
mbed_official 0:7037ed05f54f 52 #define CONFIRMED_MSG_RETRY_COUNTER 3
mbed_official 0:7037ed05f54f 53
mbed_official 0:7037ed05f54f 54 /**
mbed_official 0:7037ed05f54f 55 * Dummy pin for dummy sensor
mbed_official 0:7037ed05f54f 56 */
mbed_official 0:7037ed05f54f 57 #define PC_9 0
mbed_official 0:7037ed05f54f 58
mbed_official 0:7037ed05f54f 59 /**
mbed_official 0:7037ed05f54f 60 * Dummy sensor class object
mbed_official 0:7037ed05f54f 61 */
mbed_official 0:7037ed05f54f 62 DS1820 ds1820(PC_9);
lenriquez389 49:120e166cb735 63 HTU21D temphumid(PB_14, PB_13); //Temp humid sensor || SDA, SCL
mbed_official 0:7037ed05f54f 64 /**
mbed_official 0:7037ed05f54f 65 * This event queue is the global event queue for both the
mbed_official 0:7037ed05f54f 66 * application and stack. To conserve memory, the stack is designed to run
mbed_official 0:7037ed05f54f 67 * in the same thread as the application and the application is responsible for
mbed_official 0:7037ed05f54f 68 * providing an event queue to the stack that will be used for ISR deferment as
mbed_official 0:7037ed05f54f 69 * well as application information event queuing.
mbed_official 0:7037ed05f54f 70 */
mbed_official 46:a124538e2891 71 static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS *EVENTS_EVENT_SIZE);
mbed_official 0:7037ed05f54f 72
mbed_official 0:7037ed05f54f 73 /**
mbed_official 0:7037ed05f54f 74 * Event handler.
mbed_official 0:7037ed05f54f 75 *
mbed_official 0:7037ed05f54f 76 * This will be passed to the LoRaWAN stack to queue events for the
mbed_official 0:7037ed05f54f 77 * application which in turn drive the application.
mbed_official 0:7037ed05f54f 78 */
mbed_official 0:7037ed05f54f 79 static void lora_event_handler(lorawan_event_t event);
mbed_official 0:7037ed05f54f 80
mbed_official 0:7037ed05f54f 81 /**
mbed_official 46:a124538e2891 82 * Constructing Mbed LoRaWANInterface and passing it the radio object from lora_radio_helper.
mbed_official 0:7037ed05f54f 83 */
mbed_official 2:dc95ac6d6d4e 84 static LoRaWANInterface lorawan(radio);
mbed_official 0:7037ed05f54f 85
mbed_official 0:7037ed05f54f 86 /**
mbed_official 0:7037ed05f54f 87 * Application specific callbacks
mbed_official 0:7037ed05f54f 88 */
mbed_official 0:7037ed05f54f 89 static lorawan_app_callbacks_t callbacks;
mbed_official 0:7037ed05f54f 90
mbed_official 0:7037ed05f54f 91 /**
mbed_official 0:7037ed05f54f 92 * Entry point for application
mbed_official 0:7037ed05f54f 93 */
mbed_official 46:a124538e2891 94 int main(void)
mbed_official 0:7037ed05f54f 95 {
mbed_official 0:7037ed05f54f 96 // setup tracing
mbed_official 0:7037ed05f54f 97 setup_trace();
mbed_official 0:7037ed05f54f 98
mbed_official 0:7037ed05f54f 99 // stores the status of a call to LoRaWAN protocol
mbed_official 0:7037ed05f54f 100 lorawan_status_t retcode;
mbed_official 0:7037ed05f54f 101
mbed_official 0:7037ed05f54f 102 // Initialize LoRaWAN stack
mbed_official 2:dc95ac6d6d4e 103 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 104 printf("\r\n LoRa initialization failed! \r\n");
mbed_official 0:7037ed05f54f 105 return -1;
mbed_official 0:7037ed05f54f 106 }
mbed_official 0:7037ed05f54f 107
mbed_official 0:7037ed05f54f 108 printf("\r\n Mbed LoRaWANStack initialized \r\n");
mbed_official 0:7037ed05f54f 109
mbed_official 0:7037ed05f54f 110 // prepare application callbacks
mbed_official 0:7037ed05f54f 111 callbacks.events = mbed::callback(lora_event_handler);
mbed_official 2:dc95ac6d6d4e 112 lorawan.add_app_callbacks(&callbacks);
mbed_official 0:7037ed05f54f 113
mbed_official 0:7037ed05f54f 114 // Set number of retries in case of CONFIRMED messages
mbed_official 2:dc95ac6d6d4e 115 if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER)
mbed_official 46:a124538e2891 116 != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 117 printf("\r\n set_confirmed_msg_retries failed! \r\n\r\n");
mbed_official 0:7037ed05f54f 118 return -1;
mbed_official 0:7037ed05f54f 119 }
mbed_official 0:7037ed05f54f 120
mbed_official 0:7037ed05f54f 121 printf("\r\n CONFIRMED message retries : %d \r\n",
mbed_official 0:7037ed05f54f 122 CONFIRMED_MSG_RETRY_COUNTER);
mbed_official 0:7037ed05f54f 123
mbed_official 0:7037ed05f54f 124 // Enable adaptive data rate
mbed_official 2:dc95ac6d6d4e 125 if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 126 printf("\r\n enable_adaptive_datarate failed! \r\n");
mbed_official 0:7037ed05f54f 127 return -1;
mbed_official 0:7037ed05f54f 128 }
mbed_official 0:7037ed05f54f 129
mbed_official 0:7037ed05f54f 130 printf("\r\n Adaptive data rate (ADR) - Enabled \r\n");
mbed_official 0:7037ed05f54f 131
mbed_official 2:dc95ac6d6d4e 132 retcode = lorawan.connect();
mbed_official 0:7037ed05f54f 133
mbed_official 0:7037ed05f54f 134 if (retcode == LORAWAN_STATUS_OK ||
mbed_official 46:a124538e2891 135 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
mbed_official 0:7037ed05f54f 136 } else {
mbed_official 0:7037ed05f54f 137 printf("\r\n Connection error, code = %d \r\n", retcode);
mbed_official 0:7037ed05f54f 138 return -1;
mbed_official 0:7037ed05f54f 139 }
mbed_official 0:7037ed05f54f 140
mbed_official 0:7037ed05f54f 141 printf("\r\n Connection - In Progress ...\r\n");
mbed_official 0:7037ed05f54f 142
mbed_official 0:7037ed05f54f 143 // make your event queue dispatching events forever
mbed_official 0:7037ed05f54f 144 ev_queue.dispatch_forever();
mbed_official 3:8c7198d1a2a1 145
mbed_official 3:8c7198d1a2a1 146 return 0;
mbed_official 0:7037ed05f54f 147 }
mbed_official 0:7037ed05f54f 148
mbed_official 0:7037ed05f54f 149 /**
mbed_official 0:7037ed05f54f 150 * Sends a message to the Network Server
mbed_official 0:7037ed05f54f 151 */
mbed_official 0:7037ed05f54f 152 static void send_message()
mbed_official 0:7037ed05f54f 153 {
lenriquez389 49:120e166cb735 154
mbed_official 0:7037ed05f54f 155 int16_t retcode;
lenriquez389 49:120e166cb735 156 int sensor_value;
lenriquez389 49:120e166cb735 157 int sensor_value_2;
mbed_official 0:7037ed05f54f 158
lenriquez389 49:120e166cb735 159 sensor_value = temphumid.sample_ctemp();
lenriquez389 49:120e166cb735 160 sensor_value_2=temphumid.sample_humid();
lenriquez389 49:120e166cb735 161 //uint16_t value=uint16_t(10*sensor_value);
lenriquez389 49:120e166cb735 162 // uint8_t tx_buffer[4]={0x01,0x67,uint8_t(value>>8),uint8_t(value%256)};
lenriquez389 49:120e166cb735 163 //packet_len=sizeof(tx_buffer);
lenriquez389 49:120e166cb735 164 //retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len,MSG_UNCONFIRMED_FLAG);
mbed_official 0:7037ed05f54f 165
lenriquez389 49:120e166cb735 166
lenriquez389 49:120e166cb735 167 Payload.reset();
lenriquez389 49:120e166cb735 168 Payload.addTemperature(1, float(sensor_value));
lenriquez389 49:120e166cb735 169 Payload.addRelativeHumidity(0, float(sensor_value_2));
lenriquez389 49:120e166cb735 170 retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, Payload.getBuffer(), Payload.getSize(),MSG_UNCONFIRMED_FLAG);
lenriquez389 49:120e166cb735 171 //lorawan.send(Payload.getBuffer(), Payload.getSize());
mbed_official 0:7037ed05f54f 172
lenriquez389 49:120e166cb735 173
lenriquez389 49:120e166cb735 174 printf("Temperature: %d C\n\r", sensor_value);
lenriquez389 49:120e166cb735 175 printf("Humidite: %d \n\r", sensor_value_2);
mbed_official 0:7037ed05f54f 176 if (retcode < 0) {
mbed_official 0:7037ed05f54f 177 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n")
mbed_official 46:a124538e2891 178 : printf("\r\n send() - Error code %d \r\n", retcode);
mbed_official 26:f07f5febf97f 179
mbed_official 26:f07f5febf97f 180 if (retcode == LORAWAN_STATUS_WOULD_BLOCK) {
mbed_official 26:f07f5febf97f 181 //retry in 3 seconds
mbed_official 26:f07f5febf97f 182 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 183 ev_queue.call_in(3000, send_message);
mbed_official 26:f07f5febf97f 184 }
mbed_official 26:f07f5febf97f 185 }
mbed_official 0:7037ed05f54f 186 return;
mbed_official 0:7037ed05f54f 187 }
lenriquez389 49:120e166cb735 188 /*
mbed_official 0:7037ed05f54f 189 printf("\r\n %d bytes scheduled for transmission \r\n", retcode);
mbed_official 12:5015dfead3f2 190 memset(tx_buffer, 0, sizeof(tx_buffer));
lenriquez389 49:120e166cb735 191 */
mbed_official 0:7037ed05f54f 192 }
mbed_official 0:7037ed05f54f 193
mbed_official 0:7037ed05f54f 194 /**
mbed_official 0:7037ed05f54f 195 * Receive a message from the Network Server
mbed_official 0:7037ed05f54f 196 */
mbed_official 0:7037ed05f54f 197 static void receive_message()
mbed_official 0:7037ed05f54f 198 {
mbed_official 47:b6d132f1079f 199 uint8_t port;
mbed_official 47:b6d132f1079f 200 int flags;
mbed_official 47:b6d132f1079f 201 int16_t retcode = lorawan.receive(rx_buffer, sizeof(rx_buffer), port, flags);
mbed_official 0:7037ed05f54f 202
mbed_official 0:7037ed05f54f 203 if (retcode < 0) {
mbed_official 0:7037ed05f54f 204 printf("\r\n receive() - Error code %d \r\n", retcode);
mbed_official 0:7037ed05f54f 205 return;
mbed_official 0:7037ed05f54f 206 }
mbed_official 0:7037ed05f54f 207
mbed_official 47:b6d132f1079f 208 printf(" RX Data on port %u (%d bytes): ", port, retcode);
mbed_official 0:7037ed05f54f 209 for (uint8_t i = 0; i < retcode; i++) {
mbed_official 47:b6d132f1079f 210 printf("%02x ", rx_buffer[i]);
mbed_official 0:7037ed05f54f 211 }
mbed_official 47:b6d132f1079f 212 printf("\r\n");
lenriquez389 49:120e166cb735 213
mbed_official 12:5015dfead3f2 214 memset(rx_buffer, 0, sizeof(rx_buffer));
mbed_official 0:7037ed05f54f 215 }
mbed_official 0:7037ed05f54f 216
mbed_official 0:7037ed05f54f 217 /**
mbed_official 0:7037ed05f54f 218 * Event handler
mbed_official 0:7037ed05f54f 219 */
mbed_official 0:7037ed05f54f 220 static void lora_event_handler(lorawan_event_t event)
mbed_official 0:7037ed05f54f 221 {
mbed_official 0:7037ed05f54f 222 switch (event) {
mbed_official 0:7037ed05f54f 223 case CONNECTED:
mbed_official 0:7037ed05f54f 224 printf("\r\n Connection - Successful \r\n");
mbed_official 0:7037ed05f54f 225 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 226 send_message();
mbed_official 0:7037ed05f54f 227 } else {
mbed_official 0:7037ed05f54f 228 ev_queue.call_every(TX_TIMER, send_message);
mbed_official 0:7037ed05f54f 229 }
mbed_official 0:7037ed05f54f 230
mbed_official 0:7037ed05f54f 231 break;
mbed_official 0:7037ed05f54f 232 case DISCONNECTED:
mbed_official 0:7037ed05f54f 233 ev_queue.break_dispatch();
mbed_official 0:7037ed05f54f 234 printf("\r\n Disconnected Successfully \r\n");
mbed_official 0:7037ed05f54f 235 break;
mbed_official 0:7037ed05f54f 236 case TX_DONE:
mbed_official 0:7037ed05f54f 237 printf("\r\n Message Sent to Network Server \r\n");
mbed_official 0:7037ed05f54f 238 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 239 send_message();
mbed_official 0:7037ed05f54f 240 }
mbed_official 0:7037ed05f54f 241 break;
mbed_official 0:7037ed05f54f 242 case TX_TIMEOUT:
mbed_official 0:7037ed05f54f 243 case TX_ERROR:
mbed_official 0:7037ed05f54f 244 case TX_CRYPTO_ERROR:
mbed_official 0:7037ed05f54f 245 case TX_SCHEDULING_ERROR:
mbed_official 0:7037ed05f54f 246 printf("\r\n Transmission Error - EventCode = %d \r\n", event);
mbed_official 0:7037ed05f54f 247 // try again
mbed_official 0:7037ed05f54f 248 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 249 send_message();
mbed_official 0:7037ed05f54f 250 }
mbed_official 0:7037ed05f54f 251 break;
mbed_official 0:7037ed05f54f 252 case RX_DONE:
mbed_official 0:7037ed05f54f 253 printf("\r\n Received message from Network Server \r\n");
mbed_official 0:7037ed05f54f 254 receive_message();
mbed_official 0:7037ed05f54f 255 break;
mbed_official 0:7037ed05f54f 256 case RX_TIMEOUT:
mbed_official 0:7037ed05f54f 257 case RX_ERROR:
mbed_official 0:7037ed05f54f 258 printf("\r\n Error in reception - Code = %d \r\n", event);
mbed_official 0:7037ed05f54f 259 break;
mbed_official 0:7037ed05f54f 260 case JOIN_FAILURE:
mbed_official 0:7037ed05f54f 261 printf("\r\n OTAA Failed - Check Keys \r\n");
mbed_official 0:7037ed05f54f 262 break;
mbed_official 26:f07f5febf97f 263 case UPLINK_REQUIRED:
mbed_official 26:f07f5febf97f 264 printf("\r\n Uplink required by NS \r\n");
mbed_official 26:f07f5febf97f 265 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 266 send_message();
mbed_official 26:f07f5febf97f 267 }
mbed_official 26:f07f5febf97f 268 break;
mbed_official 0:7037ed05f54f 269 default:
mbed_official 0:7037ed05f54f 270 MBED_ASSERT("Unknown Event");
mbed_official 0:7037ed05f54f 271 }
mbed_official 0:7037ed05f54f 272 }
mbed_official 0:7037ed05f54f 273
mbed_official 0:7037ed05f54f 274 // EOF