Leonardo Sarra / Mbed OS example-ttn-workshop

example-ttn-workshop

Dependencies:   X_NUCLEO_IKS01A2

main.cpp@51:66ecf886daca, 2019-03-14 (annotated)

Committer:
LithiumSR
Date:
Thu Mar 14 17:27:26 2019 +0000
Revision:
51:66ecf886daca
Parent:
50:6e615eea1e6f 
Add support for X-NUCLEO-IKS01A2

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"
LithiumSR 51:66ecf886daca 22 #include "XNucleoIKS01A2.h"
mbed_official 0:7037ed05f54f 23 // Application helpers
mbed_official 0:7037ed05f54f 24 #include "trace_helper.h"
mbed_official 0:7037ed05f54f 25 #include "lora_radio_helper.h"
mbed_official 0:7037ed05f54f 26
mbed_official 0:7037ed05f54f 27 using namespace events;
mbed_official 0:7037ed05f54f 28
mbed_official 12:5015dfead3f2 29 // Max payload size can be LORAMAC_PHY_MAXPAYLOAD.
mbed_official 12:5015dfead3f2 30 // This example only communicates with much shorter messages (<30 bytes).
mbed_official 12:5015dfead3f2 31 // If longer messages are used, these buffers must be changed accordingly.
LithiumSR 51:66ecf886daca 32 uint8_t tx_buffer[256];
LithiumSR 51:66ecf886daca 33 uint8_t rx_buffer[256];
mbed_official 0:7037ed05f54f 34
mbed_official 0:7037ed05f54f 35 /*
mbed_official 0:7037ed05f54f 36 * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing
mbed_official 0:7037ed05f54f 37 */
mbed_official 0:7037ed05f54f 38 #define TX_TIMER 10000
mbed_official 0:7037ed05f54f 39
mbed_official 0:7037ed05f54f 40 /**
mbed_official 0:7037ed05f54f 41 * Maximum number of events for the event queue.
mbed_official 12:5015dfead3f2 42 * 10 is the safe number for the stack events, however, if application
mbed_official 0:7037ed05f54f 43 * also uses the queue for whatever purposes, this number should be increased.
mbed_official 0:7037ed05f54f 44 */
mbed_official 12:5015dfead3f2 45 #define MAX_NUMBER_OF_EVENTS 10
mbed_official 0:7037ed05f54f 46
mbed_official 0:7037ed05f54f 47 /**
mbed_official 0:7037ed05f54f 48 * Maximum number of retries for CONFIRMED messages before giving up
mbed_official 0:7037ed05f54f 49 */
mbed_official 0:7037ed05f54f 50 #define CONFIRMED_MSG_RETRY_COUNTER 3
mbed_official 0:7037ed05f54f 51
mbed_official 0:7037ed05f54f 52
mbed_official 0:7037ed05f54f 53 /**
mbed_official 0:7037ed05f54f 54 * This event queue is the global event queue for both the
mbed_official 0:7037ed05f54f 55 * application and stack. To conserve memory, the stack is designed to run
mbed_official 0:7037ed05f54f 56 * in the same thread as the application and the application is responsible for
mbed_official 0:7037ed05f54f 57 * providing an event queue to the stack that will be used for ISR deferment as
mbed_official 0:7037ed05f54f 58 * well as application information event queuing.
mbed_official 0:7037ed05f54f 59 */
mbed_official 46:a124538e2891 60 static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS *EVENTS_EVENT_SIZE);
mbed_official 0:7037ed05f54f 61
mbed_official 0:7037ed05f54f 62 /**
mbed_official 0:7037ed05f54f 63 * Event handler.
mbed_official 0:7037ed05f54f 64 *
mbed_official 0:7037ed05f54f 65 * This will be passed to the LoRaWAN stack to queue events for the
mbed_official 0:7037ed05f54f 66 * application which in turn drive the application.
mbed_official 0:7037ed05f54f 67 */
mbed_official 0:7037ed05f54f 68 static void lora_event_handler(lorawan_event_t event);
mbed_official 0:7037ed05f54f 69
mbed_official 0:7037ed05f54f 70 /**
mbed_official 46:a124538e2891 71 * Constructing Mbed LoRaWANInterface and passing it the radio object from lora_radio_helper.
mbed_official 0:7037ed05f54f 72 */
mbed_official 2:dc95ac6d6d4e 73 static LoRaWANInterface lorawan(radio);
mbed_official 0:7037ed05f54f 74
mbed_official 0:7037ed05f54f 75 /**
mbed_official 0:7037ed05f54f 76 * Application specific callbacks
mbed_official 0:7037ed05f54f 77 */
mbed_official 0:7037ed05f54f 78 static lorawan_app_callbacks_t callbacks;
mbed_official 0:7037ed05f54f 79
LithiumSR 51:66ecf886daca 80
LithiumSR 51:66ecf886daca 81 static XNucleoIKS01A2 *mems_expansion_board = XNucleoIKS01A2::instance();
LithiumSR 51:66ecf886daca 82 static LSM6DSLSensor *acc_gyro = mems_expansion_board->acc_gyro;
LithiumSR 51:66ecf886daca 83 static HTS221Sensor *hum_temp = mems_expansion_board->ht_sensor;
mbed_official 0:7037ed05f54f 84 /**
mbed_official 0:7037ed05f54f 85 * Entry point for application
mbed_official 0:7037ed05f54f 86 */
mbed_official 46:a124538e2891 87 int main(void)
mbed_official 0:7037ed05f54f 88 {
LithiumSR 51:66ecf886daca 89 acc_gyro->enable_x();
LithiumSR 51:66ecf886daca 90 acc_gyro->enable_g();
LithiumSR 51:66ecf886daca 91
mbed_official 0:7037ed05f54f 92 // setup tracing
mbed_official 0:7037ed05f54f 93 setup_trace();
mbed_official 0:7037ed05f54f 94
mbed_official 0:7037ed05f54f 95 // stores the status of a call to LoRaWAN protocol
mbed_official 0:7037ed05f54f 96 lorawan_status_t retcode;
mbed_official 0:7037ed05f54f 97
mbed_official 0:7037ed05f54f 98 // Initialize LoRaWAN stack
mbed_official 2:dc95ac6d6d4e 99 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 100 printf("\r\n LoRa initialization failed! \r\n");
mbed_official 0:7037ed05f54f 101 return -1;
mbed_official 0:7037ed05f54f 102 }
mbed_official 0:7037ed05f54f 103
mbed_official 0:7037ed05f54f 104 printf("\r\n Mbed LoRaWANStack initialized \r\n");
mbed_official 0:7037ed05f54f 105
mbed_official 0:7037ed05f54f 106 // prepare application callbacks
mbed_official 0:7037ed05f54f 107 callbacks.events = mbed::callback(lora_event_handler);
mbed_official 2:dc95ac6d6d4e 108 lorawan.add_app_callbacks(&callbacks);
mbed_official 0:7037ed05f54f 109
mbed_official 0:7037ed05f54f 110 // Set number of retries in case of CONFIRMED messages
mbed_official 2:dc95ac6d6d4e 111 if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER)
mbed_official 46:a124538e2891 112 != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 113 printf("\r\n set_confirmed_msg_retries failed! \r\n\r\n");
mbed_official 0:7037ed05f54f 114 return -1;
mbed_official 0:7037ed05f54f 115 }
mbed_official 0:7037ed05f54f 116
mbed_official 0:7037ed05f54f 117 printf("\r\n CONFIRMED message retries : %d \r\n",
mbed_official 0:7037ed05f54f 118 CONFIRMED_MSG_RETRY_COUNTER);
mbed_official 0:7037ed05f54f 119
mbed_official 0:7037ed05f54f 120 // Enable adaptive data rate
mbed_official 2:dc95ac6d6d4e 121 if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 122 printf("\r\n enable_adaptive_datarate failed! \r\n");
mbed_official 0:7037ed05f54f 123 return -1;
mbed_official 0:7037ed05f54f 124 }
mbed_official 0:7037ed05f54f 125
mbed_official 0:7037ed05f54f 126 printf("\r\n Adaptive data rate (ADR) - Enabled \r\n");
mbed_official 0:7037ed05f54f 127
mbed_official 2:dc95ac6d6d4e 128 retcode = lorawan.connect();
mbed_official 0:7037ed05f54f 129
mbed_official 0:7037ed05f54f 130 if (retcode == LORAWAN_STATUS_OK ||
mbed_official 46:a124538e2891 131 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
mbed_official 0:7037ed05f54f 132 } else {
mbed_official 0:7037ed05f54f 133 printf("\r\n Connection error, code = %d \r\n", retcode);
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 Connection - In Progress ...\r\n");
mbed_official 0:7037ed05f54f 138
mbed_official 0:7037ed05f54f 139 // make your event queue dispatching events forever
mbed_official 0:7037ed05f54f 140 ev_queue.dispatch_forever();
mbed_official 3:8c7198d1a2a1 141
mbed_official 3:8c7198d1a2a1 142 return 0;
mbed_official 0:7037ed05f54f 143 }
mbed_official 0:7037ed05f54f 144
mbed_official 0:7037ed05f54f 145 /**
mbed_official 0:7037ed05f54f 146 * Sends a message to the Network Server
mbed_official 0:7037ed05f54f 147 */
mbed_official 0:7037ed05f54f 148 static void send_message()
mbed_official 0:7037ed05f54f 149 {
mbed_official 0:7037ed05f54f 150 uint16_t packet_len;
mbed_official 0:7037ed05f54f 151 int16_t retcode;
LithiumSR 51:66ecf886daca 152 float value;
LithiumSR 51:66ecf886daca 153 int32_t axes[3];
LithiumSR 51:66ecf886daca 154 acc_gyro->get_x_axes(axes);
LithiumSR 51:66ecf886daca 155 printf("\n\rgyro:%d %d %d\n\r",axes[0],axes[1], axes[2]);
LithiumSR 51:66ecf886daca 156 hum_temp->get_temperature(&value);
LithiumSR 51:66ecf886daca 157 printf("\n\rtemp:%f\n\r",value);
LithiumSR 51:66ecf886daca 158
mbed_official 0:7037ed05f54f 159
LithiumSR 51:66ecf886daca 160 packet_len = sprintf((char *) tx_buffer, "\n\rgyro:%d %d %d\n\rn\rtemp:%f\n\r",axes[0],axes[1], axes[2], value);
mbed_official 0:7037ed05f54f 161
mbed_official 2:dc95ac6d6d4e 162 retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len,
mbed_official 47:b6d132f1079f 163 MSG_UNCONFIRMED_FLAG);
mbed_official 0:7037ed05f54f 164
mbed_official 0:7037ed05f54f 165 if (retcode < 0) {
mbed_official 0:7037ed05f54f 166 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n")
mbed_official 46:a124538e2891 167 : printf("\r\n send() - Error code %d \r\n", retcode);
mbed_official 26:f07f5febf97f 168
mbed_official 26:f07f5febf97f 169 if (retcode == LORAWAN_STATUS_WOULD_BLOCK) {
mbed_official 26:f07f5febf97f 170 //retry in 3 seconds
mbed_official 26:f07f5febf97f 171 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 172 ev_queue.call_in(3000, send_message);
mbed_official 26:f07f5febf97f 173 }
mbed_official 26:f07f5febf97f 174 }
mbed_official 0:7037ed05f54f 175 return;
mbed_official 0:7037ed05f54f 176 }
mbed_official 0:7037ed05f54f 177
mbed_official 0:7037ed05f54f 178 printf("\r\n %d bytes scheduled for transmission \r\n", retcode);
mbed_official 12:5015dfead3f2 179 memset(tx_buffer, 0, sizeof(tx_buffer));
mbed_official 0:7037ed05f54f 180 }
mbed_official 0:7037ed05f54f 181
mbed_official 0:7037ed05f54f 182 /**
mbed_official 0:7037ed05f54f 183 * Event handler
mbed_official 0:7037ed05f54f 184 */
mbed_official 0:7037ed05f54f 185 static void lora_event_handler(lorawan_event_t event)
mbed_official 0:7037ed05f54f 186 {
mbed_official 0:7037ed05f54f 187 switch (event) {
mbed_official 0:7037ed05f54f 188 case CONNECTED:
mbed_official 0:7037ed05f54f 189 printf("\r\n Connection - Successful \r\n");
mbed_official 0:7037ed05f54f 190 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 191 send_message();
mbed_official 0:7037ed05f54f 192 } else {
mbed_official 0:7037ed05f54f 193 ev_queue.call_every(TX_TIMER, send_message);
mbed_official 0:7037ed05f54f 194 }
mbed_official 0:7037ed05f54f 195
mbed_official 0:7037ed05f54f 196 break;
mbed_official 0:7037ed05f54f 197 case DISCONNECTED:
mbed_official 0:7037ed05f54f 198 ev_queue.break_dispatch();
mbed_official 0:7037ed05f54f 199 printf("\r\n Disconnected Successfully \r\n");
mbed_official 0:7037ed05f54f 200 break;
mbed_official 0:7037ed05f54f 201 case TX_DONE:
mbed_official 0:7037ed05f54f 202 printf("\r\n Message Sent to Network Server \r\n");
mbed_official 0:7037ed05f54f 203 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 204 send_message();
mbed_official 0:7037ed05f54f 205 }
mbed_official 0:7037ed05f54f 206 break;
mbed_official 0:7037ed05f54f 207 case TX_TIMEOUT:
mbed_official 0:7037ed05f54f 208 case TX_ERROR:
mbed_official 0:7037ed05f54f 209 case TX_CRYPTO_ERROR:
mbed_official 0:7037ed05f54f 210 case TX_SCHEDULING_ERROR:
mbed_official 0:7037ed05f54f 211 printf("\r\n Transmission Error - EventCode = %d \r\n", event);
mbed_official 0:7037ed05f54f 212 // try again
mbed_official 0:7037ed05f54f 213 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 214 send_message();
mbed_official 0:7037ed05f54f 215 }
mbed_official 0:7037ed05f54f 216 break;
mbed_official 0:7037ed05f54f 217 case RX_DONE:
mbed_official 0:7037ed05f54f 218 printf("\r\n Received message from Network Server \r\n");
mbed_official 0:7037ed05f54f 219 break;
mbed_official 0:7037ed05f54f 220 case RX_TIMEOUT:
mbed_official 0:7037ed05f54f 221 case RX_ERROR:
mbed_official 0:7037ed05f54f 222 printf("\r\n Error in reception - Code = %d \r\n", event);
mbed_official 0:7037ed05f54f 223 break;
mbed_official 0:7037ed05f54f 224 case JOIN_FAILURE:
mbed_official 0:7037ed05f54f 225 printf("\r\n OTAA Failed - Check Keys \r\n");
mbed_official 0:7037ed05f54f 226 break;
mbed_official 26:f07f5febf97f 227 case UPLINK_REQUIRED:
mbed_official 26:f07f5febf97f 228 printf("\r\n Uplink required by NS \r\n");
mbed_official 26:f07f5febf97f 229 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 230 send_message();
mbed_official 26:f07f5febf97f 231 }
mbed_official 26:f07f5febf97f 232 break;
mbed_official 0:7037ed05f54f 233 default:
mbed_official 0:7037ed05f54f 234 MBED_ASSERT("Unknown Event");
mbed_official 0:7037ed05f54f 235 }
mbed_official 0:7037ed05f54f 236 }
mbed_official 0:7037ed05f54f 237
mbed_official 0:7037ed05f54f 238 // EOF