Forest fire prediction using sensors and LoRa communications
Dependencies: X_NUCLEO_IKS01A2
main.cpp@51:925c07d0d7cf, 2019-06-03 (annotated)
- Committer:
- spadala
- Date:
- Mon Jun 03 10:26:44 2019 +0000
- Revision:
- 51:925c07d0d7cf
- Parent:
- 50:6e615eea1e6f
final
Who changed what in which revision?
User | Revision | Line number | New 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 | |
spadala | 51:925c07d0d7cf | 23 | // Sensor headers |
spadala | 51:925c07d0d7cf | 24 | #include "mbed.h" |
spadala | 51:925c07d0d7cf | 25 | #include "XNucleoIKS01A2.h" |
spadala | 51:925c07d0d7cf | 26 | |
mbed_official | 0:7037ed05f54f | 27 | // Application helpers |
mbed_official | 0:7037ed05f54f | 28 | #include "trace_helper.h" |
mbed_official | 0:7037ed05f54f | 29 | #include "lora_radio_helper.h" |
mbed_official | 0:7037ed05f54f | 30 | |
mbed_official | 0:7037ed05f54f | 31 | using namespace events; |
mbed_official | 0:7037ed05f54f | 32 | |
spadala | 51:925c07d0d7cf | 33 | //#define WITH_SENSORS |
spadala | 51:925c07d0d7cf | 34 | |
spadala | 51:925c07d0d7cf | 35 | #ifdef WITH_SENSORS |
spadala | 51:925c07d0d7cf | 36 | // Instantiate the expansion board |
spadala | 51:925c07d0d7cf | 37 | static XNucleoIKS01A2 *mems_expansion_board = XNucleoIKS01A2::instance(D14, D15, D4, D5); |
spadala | 51:925c07d0d7cf | 38 | |
spadala | 51:925c07d0d7cf | 39 | // Retrieve the composing elements of the expansion board |
spadala | 51:925c07d0d7cf | 40 | static HTS221Sensor *hum_temp = mems_expansion_board->ht_sensor; |
spadala | 51:925c07d0d7cf | 41 | static LPS22HBSensor *press_temp = mems_expansion_board->pt_sensor; |
spadala | 51:925c07d0d7cf | 42 | #endif |
spadala | 51:925c07d0d7cf | 43 | |
mbed_official | 12:5015dfead3f2 | 44 | // Max payload size can be LORAMAC_PHY_MAXPAYLOAD. |
mbed_official | 12:5015dfead3f2 | 45 | // This example only communicates with much shorter messages (<30 bytes). |
mbed_official | 12:5015dfead3f2 | 46 | // If longer messages are used, these buffers must be changed accordingly. |
spadala | 51:925c07d0d7cf | 47 | uint8_t tx_buffer[100]; |
spadala | 51:925c07d0d7cf | 48 | uint8_t rx_buffer[100]; |
spadala | 51:925c07d0d7cf | 49 | |
spadala | 51:925c07d0d7cf | 50 | // Buffers needed to read values from the sensors |
spadala | 51:925c07d0d7cf | 51 | float value_temp, value_hum; |
spadala | 51:925c07d0d7cf | 52 | #define SENSOR_BUFFER_SIZE 32 |
spadala | 51:925c07d0d7cf | 53 | char buffer_temp[SENSOR_BUFFER_SIZE], buffer_hum[SENSOR_BUFFER_SIZE]; |
mbed_official | 0:7037ed05f54f | 54 | |
mbed_official | 0:7037ed05f54f | 55 | /* |
mbed_official | 0:7037ed05f54f | 56 | * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing |
mbed_official | 0:7037ed05f54f | 57 | */ |
spadala | 51:925c07d0d7cf | 58 | #define TX_TIMER 11000 |
mbed_official | 0:7037ed05f54f | 59 | |
mbed_official | 0:7037ed05f54f | 60 | /** |
mbed_official | 0:7037ed05f54f | 61 | * Maximum number of events for the event queue. |
mbed_official | 12:5015dfead3f2 | 62 | * 10 is the safe number for the stack events, however, if application |
mbed_official | 0:7037ed05f54f | 63 | * also uses the queue for whatever purposes, this number should be increased. |
mbed_official | 0:7037ed05f54f | 64 | */ |
mbed_official | 12:5015dfead3f2 | 65 | #define MAX_NUMBER_OF_EVENTS 10 |
mbed_official | 0:7037ed05f54f | 66 | |
mbed_official | 0:7037ed05f54f | 67 | /** |
mbed_official | 0:7037ed05f54f | 68 | * Maximum number of retries for CONFIRMED messages before giving up |
mbed_official | 0:7037ed05f54f | 69 | */ |
mbed_official | 0:7037ed05f54f | 70 | #define CONFIRMED_MSG_RETRY_COUNTER 3 |
mbed_official | 0:7037ed05f54f | 71 | |
mbed_official | 0:7037ed05f54f | 72 | |
mbed_official | 0:7037ed05f54f | 73 | /** |
mbed_official | 0:7037ed05f54f | 74 | * This event queue is the global event queue for both the |
mbed_official | 0:7037ed05f54f | 75 | * application and stack. To conserve memory, the stack is designed to run |
mbed_official | 0:7037ed05f54f | 76 | * in the same thread as the application and the application is responsible for |
mbed_official | 0:7037ed05f54f | 77 | * providing an event queue to the stack that will be used for ISR deferment as |
mbed_official | 0:7037ed05f54f | 78 | * well as application information event queuing. |
mbed_official | 0:7037ed05f54f | 79 | */ |
mbed_official | 46:a124538e2891 | 80 | static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS *EVENTS_EVENT_SIZE); |
mbed_official | 0:7037ed05f54f | 81 | |
mbed_official | 0:7037ed05f54f | 82 | /** |
mbed_official | 0:7037ed05f54f | 83 | * Event handler. |
mbed_official | 0:7037ed05f54f | 84 | * |
mbed_official | 0:7037ed05f54f | 85 | * This will be passed to the LoRaWAN stack to queue events for the |
mbed_official | 0:7037ed05f54f | 86 | * application which in turn drive the application. |
mbed_official | 0:7037ed05f54f | 87 | */ |
mbed_official | 0:7037ed05f54f | 88 | static void lora_event_handler(lorawan_event_t event); |
mbed_official | 0:7037ed05f54f | 89 | |
mbed_official | 0:7037ed05f54f | 90 | /** |
mbed_official | 46:a124538e2891 | 91 | * Constructing Mbed LoRaWANInterface and passing it the radio object from lora_radio_helper. |
mbed_official | 0:7037ed05f54f | 92 | */ |
mbed_official | 2:dc95ac6d6d4e | 93 | static LoRaWANInterface lorawan(radio); |
mbed_official | 0:7037ed05f54f | 94 | |
mbed_official | 0:7037ed05f54f | 95 | /** |
mbed_official | 0:7037ed05f54f | 96 | * Application specific callbacks |
mbed_official | 0:7037ed05f54f | 97 | */ |
mbed_official | 0:7037ed05f54f | 98 | static lorawan_app_callbacks_t callbacks; |
mbed_official | 0:7037ed05f54f | 99 | |
spadala | 51:925c07d0d7cf | 100 | |
spadala | 51:925c07d0d7cf | 101 | static char *print_double(char* str, double v); |
spadala | 51:925c07d0d7cf | 102 | |
mbed_official | 0:7037ed05f54f | 103 | /** |
mbed_official | 0:7037ed05f54f | 104 | * Entry point for application |
mbed_official | 0:7037ed05f54f | 105 | */ |
mbed_official | 46:a124538e2891 | 106 | int main(void) |
mbed_official | 0:7037ed05f54f | 107 | { |
spadala | 51:925c07d0d7cf | 108 | printf("\r\n Hello, starting..."); |
spadala | 51:925c07d0d7cf | 109 | |
spadala | 51:925c07d0d7cf | 110 | #ifdef WITH_SENSORS |
spadala | 51:925c07d0d7cf | 111 | // setup sensor stack |
spadala | 51:925c07d0d7cf | 112 | hum_temp->enable(); |
spadala | 51:925c07d0d7cf | 113 | press_temp->enable(); |
spadala | 51:925c07d0d7cf | 114 | |
spadala | 51:925c07d0d7cf | 115 | // testing sensors |
spadala | 51:925c07d0d7cf | 116 | hum_temp->get_temperature(&value_temp); |
spadala | 51:925c07d0d7cf | 117 | hum_temp->get_humidity(&value_hum); |
spadala | 51:925c07d0d7cf | 118 | printf("\r\n Sensors test:\r\n HTS221: [temp] %7s C, [hum] %s%%\r\n", print_double(buffer_temp, value_temp), print_double(buffer_hum, value_hum)); |
spadala | 51:925c07d0d7cf | 119 | #endif |
spadala | 51:925c07d0d7cf | 120 | |
mbed_official | 0:7037ed05f54f | 121 | // setup tracing |
mbed_official | 0:7037ed05f54f | 122 | setup_trace(); |
mbed_official | 0:7037ed05f54f | 123 | |
mbed_official | 0:7037ed05f54f | 124 | // stores the status of a call to LoRaWAN protocol |
mbed_official | 0:7037ed05f54f | 125 | lorawan_status_t retcode; |
mbed_official | 0:7037ed05f54f | 126 | |
mbed_official | 0:7037ed05f54f | 127 | // Initialize LoRaWAN stack |
mbed_official | 2:dc95ac6d6d4e | 128 | if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) { |
mbed_official | 0:7037ed05f54f | 129 | printf("\r\n LoRa initialization 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 Mbed LoRaWANStack initialized \r\n"); |
mbed_official | 0:7037ed05f54f | 134 | |
mbed_official | 0:7037ed05f54f | 135 | // prepare application callbacks |
mbed_official | 0:7037ed05f54f | 136 | callbacks.events = mbed::callback(lora_event_handler); |
mbed_official | 2:dc95ac6d6d4e | 137 | lorawan.add_app_callbacks(&callbacks); |
mbed_official | 0:7037ed05f54f | 138 | |
mbed_official | 0:7037ed05f54f | 139 | // Set number of retries in case of CONFIRMED messages |
mbed_official | 2:dc95ac6d6d4e | 140 | if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER) |
mbed_official | 46:a124538e2891 | 141 | != LORAWAN_STATUS_OK) { |
mbed_official | 0:7037ed05f54f | 142 | printf("\r\n set_confirmed_msg_retries failed! \r\n\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 CONFIRMED message retries : %d \r\n", |
mbed_official | 0:7037ed05f54f | 147 | CONFIRMED_MSG_RETRY_COUNTER); |
mbed_official | 0:7037ed05f54f | 148 | |
mbed_official | 0:7037ed05f54f | 149 | // Enable adaptive data rate |
mbed_official | 2:dc95ac6d6d4e | 150 | if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) { |
mbed_official | 0:7037ed05f54f | 151 | printf("\r\n enable_adaptive_datarate failed! \r\n"); |
mbed_official | 0:7037ed05f54f | 152 | return -1; |
mbed_official | 0:7037ed05f54f | 153 | } |
mbed_official | 0:7037ed05f54f | 154 | |
mbed_official | 0:7037ed05f54f | 155 | printf("\r\n Adaptive data rate (ADR) - Enabled \r\n"); |
mbed_official | 0:7037ed05f54f | 156 | |
mbed_official | 2:dc95ac6d6d4e | 157 | retcode = lorawan.connect(); |
mbed_official | 0:7037ed05f54f | 158 | |
mbed_official | 0:7037ed05f54f | 159 | if (retcode == LORAWAN_STATUS_OK || |
mbed_official | 46:a124538e2891 | 160 | retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) { |
mbed_official | 0:7037ed05f54f | 161 | } else { |
mbed_official | 0:7037ed05f54f | 162 | printf("\r\n Connection error, code = %d \r\n", retcode); |
mbed_official | 0:7037ed05f54f | 163 | return -1; |
mbed_official | 0:7037ed05f54f | 164 | } |
mbed_official | 0:7037ed05f54f | 165 | |
mbed_official | 0:7037ed05f54f | 166 | printf("\r\n Connection - In Progress ...\r\n"); |
mbed_official | 0:7037ed05f54f | 167 | |
mbed_official | 0:7037ed05f54f | 168 | // make your event queue dispatching events forever |
mbed_official | 0:7037ed05f54f | 169 | ev_queue.dispatch_forever(); |
mbed_official | 3:8c7198d1a2a1 | 170 | |
mbed_official | 3:8c7198d1a2a1 | 171 | return 0; |
mbed_official | 0:7037ed05f54f | 172 | } |
mbed_official | 0:7037ed05f54f | 173 | |
spadala | 51:925c07d0d7cf | 174 | #ifndef WITH_SENSORS |
spadala | 51:925c07d0d7cf | 175 | |
spadala | 51:925c07d0d7cf | 176 | /* |
mbed_official | 0:7037ed05f54f | 177 | * Sends a message to the Network Server |
mbed_official | 0:7037ed05f54f | 178 | */ |
mbed_official | 0:7037ed05f54f | 179 | static void send_message() |
mbed_official | 0:7037ed05f54f | 180 | { |
mbed_official | 0:7037ed05f54f | 181 | uint16_t packet_len; |
mbed_official | 0:7037ed05f54f | 182 | int16_t retcode; |
spadala | 51:925c07d0d7cf | 183 | printf("\n\rSending message"); |
mbed_official | 0:7037ed05f54f | 184 | |
spadala | 51:925c07d0d7cf | 185 | packet_len = sprintf((char *) tx_buffer, "This is a test. LoRa Works! <3"); |
mbed_official | 0:7037ed05f54f | 186 | |
mbed_official | 2:dc95ac6d6d4e | 187 | retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len, |
mbed_official | 47:b6d132f1079f | 188 | MSG_UNCONFIRMED_FLAG); |
mbed_official | 0:7037ed05f54f | 189 | |
mbed_official | 0:7037ed05f54f | 190 | if (retcode < 0) { |
spadala | 51:925c07d0d7cf | 191 | printf("retcode < 0 in send\r\n"); |
spadala | 51:925c07d0d7cf | 192 | |
mbed_official | 0:7037ed05f54f | 193 | retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n") |
mbed_official | 46:a124538e2891 | 194 | : printf("\r\n send() - Error code %d \r\n", retcode); |
mbed_official | 26:f07f5febf97f | 195 | |
mbed_official | 26:f07f5febf97f | 196 | if (retcode == LORAWAN_STATUS_WOULD_BLOCK) { |
mbed_official | 26:f07f5febf97f | 197 | //retry in 3 seconds |
spadala | 51:925c07d0d7cf | 198 | printf("LORAWAN_STATUS_WOULD_BLOCK verified, retrying"); |
mbed_official | 26:f07f5febf97f | 199 | if (MBED_CONF_LORA_DUTY_CYCLE_ON) { |
mbed_official | 26:f07f5febf97f | 200 | ev_queue.call_in(3000, send_message); |
mbed_official | 26:f07f5febf97f | 201 | } |
mbed_official | 26:f07f5febf97f | 202 | } |
mbed_official | 0:7037ed05f54f | 203 | return; |
mbed_official | 0:7037ed05f54f | 204 | } |
mbed_official | 0:7037ed05f54f | 205 | |
mbed_official | 0:7037ed05f54f | 206 | printf("\r\n %d bytes scheduled for transmission \r\n", retcode); |
mbed_official | 12:5015dfead3f2 | 207 | memset(tx_buffer, 0, sizeof(tx_buffer)); |
mbed_official | 0:7037ed05f54f | 208 | } |
mbed_official | 0:7037ed05f54f | 209 | |
spadala | 51:925c07d0d7cf | 210 | #else |
spadala | 51:925c07d0d7cf | 211 | |
spadala | 51:925c07d0d7cf | 212 | |
spadala | 51:925c07d0d7cf | 213 | static void send_message() |
spadala | 51:925c07d0d7cf | 214 | { |
spadala | 51:925c07d0d7cf | 215 | printf("\n\rSending message"); |
spadala | 51:925c07d0d7cf | 216 | uint16_t packet_len; |
spadala | 51:925c07d0d7cf | 217 | int16_t retcode; |
spadala | 51:925c07d0d7cf | 218 | |
spadala | 51:925c07d0d7cf | 219 | // reading from sensors |
spadala | 51:925c07d0d7cf | 220 | memset(buffer_temp, 0, sizeof(buffer_temp)); |
spadala | 51:925c07d0d7cf | 221 | memset(buffer_hum, 0, sizeof(buffer_hum)); |
spadala | 51:925c07d0d7cf | 222 | hum_temp->get_temperature(&value_temp); |
spadala | 51:925c07d0d7cf | 223 | hum_temp->get_humidity(&value_hum); |
spadala | 51:925c07d0d7cf | 224 | printf("\r\nSensors reading: [temp] %7s C, [hum] %s%%\r\n", |
spadala | 51:925c07d0d7cf | 225 | print_double(buffer_temp, value_temp), print_double(buffer_hum, value_hum)); |
spadala | 51:925c07d0d7cf | 226 | |
spadala | 51:925c07d0d7cf | 227 | // format data |
spadala | 51:925c07d0d7cf | 228 | uint16_t temp_len = sprintf((char *) tx_buffer, buffer_temp); |
spadala | 51:925c07d0d7cf | 229 | tx_buffer[temp_len] = ':'; |
spadala | 51:925c07d0d7cf | 230 | uint16_t hum_len = sprintf((char *) &tx_buffer[temp_len+1], buffer_hum); |
spadala | 51:925c07d0d7cf | 231 | |
spadala | 51:925c07d0d7cf | 232 | // set final payload and send |
spadala | 51:925c07d0d7cf | 233 | packet_len = temp_len + hum_len + 1; |
spadala | 51:925c07d0d7cf | 234 | |
spadala | 51:925c07d0d7cf | 235 | printf("\r\n Sending to server %s", tx_buffer); |
spadala | 51:925c07d0d7cf | 236 | |
spadala | 51:925c07d0d7cf | 237 | retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len, |
spadala | 51:925c07d0d7cf | 238 | MSG_UNCONFIRMED_FLAG); |
spadala | 51:925c07d0d7cf | 239 | |
spadala | 51:925c07d0d7cf | 240 | |
spadala | 51:925c07d0d7cf | 241 | |
spadala | 51:925c07d0d7cf | 242 | if (retcode < 0) { |
spadala | 51:925c07d0d7cf | 243 | printf("retcode < 0 in send\r\n"); |
spadala | 51:925c07d0d7cf | 244 | |
spadala | 51:925c07d0d7cf | 245 | retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n") |
spadala | 51:925c07d0d7cf | 246 | : printf("\r\n send() - Error code %d \r\n", retcode); |
spadala | 51:925c07d0d7cf | 247 | |
spadala | 51:925c07d0d7cf | 248 | if (retcode == LORAWAN_STATUS_WOULD_BLOCK) { |
spadala | 51:925c07d0d7cf | 249 | //retry in 3 seconds |
spadala | 51:925c07d0d7cf | 250 | printf("LORAWAN_STATUS_WOULD_BLOCK verified, retrying"); |
spadala | 51:925c07d0d7cf | 251 | if (MBED_CONF_LORA_DUTY_CYCLE_ON) { |
spadala | 51:925c07d0d7cf | 252 | ev_queue.call_in(3000, send_message); |
spadala | 51:925c07d0d7cf | 253 | } |
spadala | 51:925c07d0d7cf | 254 | } |
spadala | 51:925c07d0d7cf | 255 | return; |
spadala | 51:925c07d0d7cf | 256 | } |
spadala | 51:925c07d0d7cf | 257 | |
spadala | 51:925c07d0d7cf | 258 | printf("\r\n %d bytes scheduled for transmission \r\n", retcode); |
spadala | 51:925c07d0d7cf | 259 | memset(tx_buffer, 0, sizeof(tx_buffer)); |
spadala | 51:925c07d0d7cf | 260 | } |
spadala | 51:925c07d0d7cf | 261 | |
spadala | 51:925c07d0d7cf | 262 | #endif |
spadala | 51:925c07d0d7cf | 263 | |
spadala | 51:925c07d0d7cf | 264 | /* Helper function for printing floats & doubles */ |
spadala | 51:925c07d0d7cf | 265 | static char *print_double(char* str, double v) |
spadala | 51:925c07d0d7cf | 266 | { |
spadala | 51:925c07d0d7cf | 267 | int decimalDigits=2; |
spadala | 51:925c07d0d7cf | 268 | int i = 1; |
spadala | 51:925c07d0d7cf | 269 | int intPart, fractPart; |
spadala | 51:925c07d0d7cf | 270 | int len; |
spadala | 51:925c07d0d7cf | 271 | char *ptr; |
spadala | 51:925c07d0d7cf | 272 | |
spadala | 51:925c07d0d7cf | 273 | /* prepare decimal digits multiplicator */ |
spadala | 51:925c07d0d7cf | 274 | for (;decimalDigits!=0; i*=10, decimalDigits--); |
spadala | 51:925c07d0d7cf | 275 | |
spadala | 51:925c07d0d7cf | 276 | /* calculate integer & fractinal parts */ |
spadala | 51:925c07d0d7cf | 277 | intPart = (int)v; |
spadala | 51:925c07d0d7cf | 278 | fractPart = (int)((v-(double)(int)v)*i); |
spadala | 51:925c07d0d7cf | 279 | |
spadala | 51:925c07d0d7cf | 280 | /* fill in integer part */ |
spadala | 51:925c07d0d7cf | 281 | sprintf(str, "%i.", intPart); |
spadala | 51:925c07d0d7cf | 282 | |
spadala | 51:925c07d0d7cf | 283 | /* prepare fill in of fractional part */ |
spadala | 51:925c07d0d7cf | 284 | len = strlen(str); |
spadala | 51:925c07d0d7cf | 285 | ptr = &str[len]; |
spadala | 51:925c07d0d7cf | 286 | |
spadala | 51:925c07d0d7cf | 287 | /* fill in leading fractional zeros */ |
spadala | 51:925c07d0d7cf | 288 | for (i/=10;i>1; i/=10, ptr++) { |
spadala | 51:925c07d0d7cf | 289 | if (fractPart >= i) { |
spadala | 51:925c07d0d7cf | 290 | break; |
spadala | 51:925c07d0d7cf | 291 | } |
spadala | 51:925c07d0d7cf | 292 | *ptr = '0'; |
spadala | 51:925c07d0d7cf | 293 | } |
spadala | 51:925c07d0d7cf | 294 | |
spadala | 51:925c07d0d7cf | 295 | /* fill in (rest of) fractional part */ |
spadala | 51:925c07d0d7cf | 296 | sprintf(ptr, "%i", fractPart); |
spadala | 51:925c07d0d7cf | 297 | |
spadala | 51:925c07d0d7cf | 298 | return str; |
spadala | 51:925c07d0d7cf | 299 | } |
spadala | 51:925c07d0d7cf | 300 | |
mbed_official | 0:7037ed05f54f | 301 | /** |
mbed_official | 0:7037ed05f54f | 302 | * Event handler |
mbed_official | 0:7037ed05f54f | 303 | */ |
mbed_official | 0:7037ed05f54f | 304 | static void lora_event_handler(lorawan_event_t event) |
mbed_official | 0:7037ed05f54f | 305 | { |
mbed_official | 0:7037ed05f54f | 306 | switch (event) { |
mbed_official | 0:7037ed05f54f | 307 | case CONNECTED: |
mbed_official | 0:7037ed05f54f | 308 | printf("\r\n Connection - Successful \r\n"); |
mbed_official | 0:7037ed05f54f | 309 | if (MBED_CONF_LORA_DUTY_CYCLE_ON) { |
mbed_official | 0:7037ed05f54f | 310 | send_message(); |
mbed_official | 0:7037ed05f54f | 311 | } else { |
mbed_official | 0:7037ed05f54f | 312 | ev_queue.call_every(TX_TIMER, send_message); |
mbed_official | 0:7037ed05f54f | 313 | } |
mbed_official | 0:7037ed05f54f | 314 | |
mbed_official | 0:7037ed05f54f | 315 | break; |
mbed_official | 0:7037ed05f54f | 316 | case DISCONNECTED: |
mbed_official | 0:7037ed05f54f | 317 | ev_queue.break_dispatch(); |
mbed_official | 0:7037ed05f54f | 318 | printf("\r\n Disconnected Successfully \r\n"); |
mbed_official | 0:7037ed05f54f | 319 | break; |
mbed_official | 0:7037ed05f54f | 320 | case TX_DONE: |
mbed_official | 0:7037ed05f54f | 321 | printf("\r\n Message Sent to Network Server \r\n"); |
mbed_official | 0:7037ed05f54f | 322 | if (MBED_CONF_LORA_DUTY_CYCLE_ON) { |
mbed_official | 0:7037ed05f54f | 323 | send_message(); |
mbed_official | 0:7037ed05f54f | 324 | } |
mbed_official | 0:7037ed05f54f | 325 | break; |
mbed_official | 0:7037ed05f54f | 326 | case TX_TIMEOUT: |
mbed_official | 0:7037ed05f54f | 327 | case TX_ERROR: |
mbed_official | 0:7037ed05f54f | 328 | case TX_CRYPTO_ERROR: |
mbed_official | 0:7037ed05f54f | 329 | case TX_SCHEDULING_ERROR: |
mbed_official | 0:7037ed05f54f | 330 | printf("\r\n Transmission Error - EventCode = %d \r\n", event); |
mbed_official | 0:7037ed05f54f | 331 | // try again |
mbed_official | 0:7037ed05f54f | 332 | if (MBED_CONF_LORA_DUTY_CYCLE_ON) { |
mbed_official | 0:7037ed05f54f | 333 | send_message(); |
mbed_official | 0:7037ed05f54f | 334 | } |
mbed_official | 0:7037ed05f54f | 335 | break; |
mbed_official | 0:7037ed05f54f | 336 | case RX_DONE: |
mbed_official | 0:7037ed05f54f | 337 | printf("\r\n Received message from Network Server \r\n"); |
mbed_official | 0:7037ed05f54f | 338 | break; |
mbed_official | 0:7037ed05f54f | 339 | case RX_TIMEOUT: |
mbed_official | 0:7037ed05f54f | 340 | case RX_ERROR: |
mbed_official | 0:7037ed05f54f | 341 | printf("\r\n Error in reception - Code = %d \r\n", event); |
mbed_official | 0:7037ed05f54f | 342 | break; |
mbed_official | 0:7037ed05f54f | 343 | case JOIN_FAILURE: |
mbed_official | 0:7037ed05f54f | 344 | printf("\r\n OTAA Failed - Check Keys \r\n"); |
mbed_official | 0:7037ed05f54f | 345 | break; |
mbed_official | 26:f07f5febf97f | 346 | case UPLINK_REQUIRED: |
mbed_official | 26:f07f5febf97f | 347 | printf("\r\n Uplink required by NS \r\n"); |
mbed_official | 26:f07f5febf97f | 348 | if (MBED_CONF_LORA_DUTY_CYCLE_ON) { |
mbed_official | 26:f07f5febf97f | 349 | send_message(); |
mbed_official | 26:f07f5febf97f | 350 | } |
mbed_official | 26:f07f5febf97f | 351 | break; |
mbed_official | 0:7037ed05f54f | 352 | default: |
mbed_official | 0:7037ed05f54f | 353 | MBED_ASSERT("Unknown Event"); |
mbed_official | 0:7037ed05f54f | 354 | } |
mbed_official | 0:7037ed05f54f | 355 | } |
mbed_official | 0:7037ed05f54f | 356 | |
mbed_official | 0:7037ed05f54f | 357 | // EOF |