Guilherme Lubk / Mbed OS fire_detector_IoT_v3

Fire Detector IoT

Dependencies:   BSP_B-L475E-IOT01

main.cpp@3:c770d0610d7c, 2020-10-20 (annotated)

Committer:
GuilhermeLubk
Date:
Tue Oct 20 12:51:08 2020 +0000
Revision:
3:c770d0610d7c
Parent:
2:e64b4470877a 
Latest version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GuilhermeLubk 3:c770d0610d7c 1 /*THIS PROGRAM USES PARTS OF THE FOLLOWING SOFTWARE
GuilhermeLubk 3:c770d0610d7c 2 * WiFi Example
GuilhermeLubk 0:e84b46bbec77 3 * Copyright (c) 2018 ARM Limited
GuilhermeLubk 0:e84b46bbec77 4 *
GuilhermeLubk 0:e84b46bbec77 5 * Licensed under the Apache License, Version 2.0 (the "License");
GuilhermeLubk 0:e84b46bbec77 6 * you may not use this file except in compliance with the License.
GuilhermeLubk 0:e84b46bbec77 7 * You may obtain a copy of the License at
GuilhermeLubk 0:e84b46bbec77 8 *
GuilhermeLubk 0:e84b46bbec77 9 * http://www.apache.org/licenses/LICENSE-2.0
GuilhermeLubk 0:e84b46bbec77 10 *
GuilhermeLubk 0:e84b46bbec77 11 * Unless required by applicable law or agreed to in writing, software
GuilhermeLubk 0:e84b46bbec77 12 * distributed under the License is distributed on an "AS IS" BASIS,
GuilhermeLubk 0:e84b46bbec77 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
GuilhermeLubk 0:e84b46bbec77 14 * See the License for the specific language governing permissions and
GuilhermeLubk 0:e84b46bbec77 15 * limitations under the License.
GuilhermeLubk 0:e84b46bbec77 16 */
GuilhermeLubk 3:c770d0610d7c 17
GuilhermeLubk 3:c770d0610d7c 18 // This version of Fire Detector IoT is created by
GuilhermeLubk 3:c770d0610d7c 19 // Fouad BRAX
GuilhermeLubk 3:c770d0610d7c 20 // Achille CADIX
GuilhermeLubk 3:c770d0610d7c 21 // Guilherme LUBK DO PRADO
GuilhermeLubk 0:e84b46bbec77 22
GuilhermeLubk 0:e84b46bbec77 23 #include "mbed.h"
GuilhermeLubk 0:e84b46bbec77 24 #include "TCPSocket.h"
GuilhermeLubk 0:e84b46bbec77 25 #include "stm32l475e_iot01_tsensor.h"
GuilhermeLubk 0:e84b46bbec77 26
GuilhermeLubk 0:e84b46bbec77 27 #define FIRE_DETECTED (1UL << 0)
GuilhermeLubk 0:e84b46bbec77 28
GuilhermeLubk 0:e84b46bbec77 29 #define WIFI_IDW0XX1 2
GuilhermeLubk 0:e84b46bbec77 30 #define TS_DEVICE "stmWifi"
GuilhermeLubk 0:e84b46bbec77 31 #define thingspeak_APIkey_write "SCS2JFDTW4EZC0NP"
GuilhermeLubk 0:e84b46bbec77 32 #define thingspeak_APIkey_read "O3ZVNRCX5J95EB4G"
GuilhermeLubk 0:e84b46bbec77 33
GuilhermeLubk 0:e84b46bbec77 34 #if (defined(TARGET_DISCO_L475VG_IOT01A) || defined(TARGET_DISCO_F413ZH))
GuilhermeLubk 0:e84b46bbec77 35 #include "ISM43362Interface.h"
GuilhermeLubk 0:e84b46bbec77 36 ISM43362Interface wifi(MBED_CONF_APP_WIFI_SPI_MOSI, MBED_CONF_APP_WIFI_SPI_MISO, MBED_CONF_APP_WIFI_SPI_SCLK, MBED_CONF_APP_WIFI_SPI_NSS, MBED_CONF_APP_WIFI_RESET, MBED_CONF_APP_WIFI_DATAREADY, MBED_CONF_APP_WIFI_WAKEUP, false);
GuilhermeLubk 0:e84b46bbec77 37
GuilhermeLubk 0:e84b46bbec77 38 #else // External WiFi modules
GuilhermeLubk 0:e84b46bbec77 39 #if MBED_CONF_APP_WIFI_SHIELD == WIFI_IDW0XX1
GuilhermeLubk 0:e84b46bbec77 40 #include "SpwfSAInterface.h"
GuilhermeLubk 0:e84b46bbec77 41 SpwfSAInterface wifi(MBED_CONF_APP_WIFI_TX, MBED_CONF_APP_WIFI_RX);
GuilhermeLubk 0:e84b46bbec77 42 #endif // MBED_CONF_APP_WIFI_SHIELD == WIFI_IDW0XX1
GuilhermeLubk 0:e84b46bbec77 43 #endif
GuilhermeLubk 0:e84b46bbec77 44
GuilhermeLubk 0:e84b46bbec77 45 //LEDS used for debugging
GuilhermeLubk 0:e84b46bbec77 46 DigitalOut led1(LED1, 1);
GuilhermeLubk 0:e84b46bbec77 47 DigitalOut led2(LED2, 1);
GuilhermeLubk 0:e84b46bbec77 48
GuilhermeLubk 1:2c451ce6086b 49 //Buzzer
GuilhermeLubk 1:2c451ce6086b 50 PwmOut buzzer(D9);
GuilhermeLubk 1:2c451ce6086b 51
GuilhermeLubk 0:e84b46bbec77 52 //Interruptions
GuilhermeLubk 0:e84b46bbec77 53 InterruptIn button(D3);
GuilhermeLubk 0:e84b46bbec77 54 InterruptIn IR(D7);
GuilhermeLubk 0:e84b46bbec77 55
GuilhermeLubk 0:e84b46bbec77 56 //Thread
GuilhermeLubk 0:e84b46bbec77 57 Thread thread;
GuilhermeLubk 0:e84b46bbec77 58
GuilhermeLubk 0:e84b46bbec77 59 //Event flag to control thread start
GuilhermeLubk 0:e84b46bbec77 60 EventFlags event_flags;
GuilhermeLubk 0:e84b46bbec77 61
GuilhermeLubk 0:e84b46bbec77 62
GuilhermeLubk 0:e84b46bbec77 63
GuilhermeLubk 0:e84b46bbec77 64 void button_ISP()
GuilhermeLubk 0:e84b46bbec77 65 {
GuilhermeLubk 0:e84b46bbec77 66 led1 = 0;
GuilhermeLubk 0:e84b46bbec77 67 NVIC_SystemReset();
GuilhermeLubk 0:e84b46bbec77 68 }
GuilhermeLubk 0:e84b46bbec77 69
GuilhermeLubk 0:e84b46bbec77 70 void IR_ISP()
GuilhermeLubk 0:e84b46bbec77 71 {
GuilhermeLubk 0:e84b46bbec77 72 led1 = 1;
GuilhermeLubk 0:e84b46bbec77 73 event_flags.set(FIRE_DETECTED);
GuilhermeLubk 0:e84b46bbec77 74 IR.rise(NULL);
GuilhermeLubk 0:e84b46bbec77 75 }
GuilhermeLubk 0:e84b46bbec77 76
GuilhermeLubk 0:e84b46bbec77 77 const char *sec2str(nsapi_security_t sec)
GuilhermeLubk 0:e84b46bbec77 78 {
GuilhermeLubk 0:e84b46bbec77 79 switch (sec) {
GuilhermeLubk 0:e84b46bbec77 80 case NSAPI_SECURITY_NONE:
GuilhermeLubk 0:e84b46bbec77 81 return "None";
GuilhermeLubk 0:e84b46bbec77 82 case NSAPI_SECURITY_WEP:
GuilhermeLubk 0:e84b46bbec77 83 return "WEP";
GuilhermeLubk 0:e84b46bbec77 84 case NSAPI_SECURITY_WPA:
GuilhermeLubk 0:e84b46bbec77 85 return "WPA";
GuilhermeLubk 0:e84b46bbec77 86 case NSAPI_SECURITY_WPA2:
GuilhermeLubk 0:e84b46bbec77 87 return "WPA2";
GuilhermeLubk 0:e84b46bbec77 88 case NSAPI_SECURITY_WPA_WPA2:
GuilhermeLubk 0:e84b46bbec77 89 return "WPA/WPA2";
GuilhermeLubk 0:e84b46bbec77 90 case NSAPI_SECURITY_UNKNOWN:
GuilhermeLubk 0:e84b46bbec77 91 default:
GuilhermeLubk 0:e84b46bbec77 92 return "Unknown";
GuilhermeLubk 0:e84b46bbec77 93 }
GuilhermeLubk 0:e84b46bbec77 94 }
GuilhermeLubk 0:e84b46bbec77 95
GuilhermeLubk 0:e84b46bbec77 96 void main_routine()
GuilhermeLubk 0:e84b46bbec77 97 {
GuilhermeLubk 0:e84b46bbec77 98 //Temperature reading
GuilhermeLubk 0:e84b46bbec77 99 BSP_TSENSOR_Init();
GuilhermeLubk 0:e84b46bbec77 100 float temperature_value = 0;
cadix_ach 2:e64b4470877a 101 int fire_state=1;
GuilhermeLubk 0:e84b46bbec77 102 //Check fire variable
GuilhermeLubk 0:e84b46bbec77 103 int numReadings = 0;
GuilhermeLubk 0:e84b46bbec77 104
GuilhermeLubk 0:e84b46bbec77 105 while(true) {
GuilhermeLubk 0:e84b46bbec77 106 //wait for a fire reading
GuilhermeLubk 0:e84b46bbec77 107 event_flags.wait_any(FIRE_DETECTED);
GuilhermeLubk 0:e84b46bbec77 108
GuilhermeLubk 0:e84b46bbec77 109 //check against false readings
GuilhermeLubk 0:e84b46bbec77 110 for(int n = 0; n < 5; n++) {
GuilhermeLubk 0:e84b46bbec77 111 numReadings += IR.read();
GuilhermeLubk 0:e84b46bbec77 112 led1 = !led1;
GuilhermeLubk 0:e84b46bbec77 113 wait(0.2);
GuilhermeLubk 0:e84b46bbec77 114 }
GuilhermeLubk 0:e84b46bbec77 115
GuilhermeLubk 0:e84b46bbec77 116 printf("\nNum of positive readings: %d\n\r", numReadings);
GuilhermeLubk 0:e84b46bbec77 117
GuilhermeLubk 0:e84b46bbec77 118 if(numReadings >= 5) {
GuilhermeLubk 1:2c451ce6086b 119 buzzer.write(1.0f);
GuilhermeLubk 0:e84b46bbec77 120 printf("\nFIRE DETECTED - SENDING DATA\n\r");
GuilhermeLubk 0:e84b46bbec77 121 IR.rise(NULL);
GuilhermeLubk 0:e84b46bbec77 122 led1 = 1;
GuilhermeLubk 0:e84b46bbec77 123 led2 = 1;
GuilhermeLubk 0:e84b46bbec77 124
GuilhermeLubk 0:e84b46bbec77 125 //Connect to ThingSpeak and starting sending data
GuilhermeLubk 0:e84b46bbec77 126 int ret = 1;
GuilhermeLubk 0:e84b46bbec77 127 do {
GuilhermeLubk 0:e84b46bbec77 128 printf("\nConnecting to %s...\n", MBED_CONF_APP_WIFI_SSID);
GuilhermeLubk 0:e84b46bbec77 129 ret = wifi.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
GuilhermeLubk 0:e84b46bbec77 130 } while(ret != 0);
GuilhermeLubk 0:e84b46bbec77 131
GuilhermeLubk 0:e84b46bbec77 132 printf("Success\n\n");
GuilhermeLubk 0:e84b46bbec77 133 printf("MAC: %s\n", wifi.get_mac_address());
GuilhermeLubk 0:e84b46bbec77 134 printf("IP: %s\n", wifi.get_ip_address());
GuilhermeLubk 0:e84b46bbec77 135 printf("Netmask: %s\n", wifi.get_netmask());
GuilhermeLubk 0:e84b46bbec77 136 printf("Gateway: %s\n", wifi.get_gateway());
GuilhermeLubk 0:e84b46bbec77 137 printf("RSSI: %d\n\n", wifi.get_rssi());
GuilhermeLubk 0:e84b46bbec77 138
GuilhermeLubk 0:e84b46bbec77 139 NetworkInterface *net = &wifi;
GuilhermeLubk 0:e84b46bbec77 140
GuilhermeLubk 0:e84b46bbec77 141 TCPSocket socket;
GuilhermeLubk 0:e84b46bbec77 142 nsapi_error_t response;
GuilhermeLubk 0:e84b46bbec77 143 char sbuffer[256];
GuilhermeLubk 0:e84b46bbec77 144 char message[64];
GuilhermeLubk 0:e84b46bbec77 145
GuilhermeLubk 0:e84b46bbec77 146 while(true) {
GuilhermeLubk 0:e84b46bbec77 147
GuilhermeLubk 1:2c451ce6086b 148 buzzer.write(1.0f);
GuilhermeLubk 0:e84b46bbec77 149 // Open a socket on the network interface, and create a TCP connection to thingspeaks.com
GuilhermeLubk 0:e84b46bbec77 150 socket.open(net);
GuilhermeLubk 0:e84b46bbec77 151 response = socket.connect("api.thingspeak.com", 80);
GuilhermeLubk 0:e84b46bbec77 152 if(0 != response) {
GuilhermeLubk 0:e84b46bbec77 153 printf("Error connecting: %d\n", response);
GuilhermeLubk 0:e84b46bbec77 154 socket.close();
GuilhermeLubk 0:e84b46bbec77 155 return;
GuilhermeLubk 0:e84b46bbec77 156 }
GuilhermeLubk 0:e84b46bbec77 157
GuilhermeLubk 0:e84b46bbec77 158 printf("Connected to the Server\n");
GuilhermeLubk 0:e84b46bbec77 159
GuilhermeLubk 0:e84b46bbec77 160 //lecture des données des capteurs et actualisation des variables à transmettre
GuilhermeLubk 0:e84b46bbec77 161 temperature_value = BSP_TSENSOR_ReadTemp() - 8;
GuilhermeLubk 0:e84b46bbec77 162 led1 = !led1;
GuilhermeLubk 0:e84b46bbec77 163
GuilhermeLubk 0:e84b46bbec77 164
GuilhermeLubk 0:e84b46bbec77 165 /* Construct content of HTTP command */
GuilhermeLubk 0:e84b46bbec77 166 //message à transmettre (données des capteurs)
cadix_ach 2:e64b4470877a 167 sprintf(message, "{\"field1\": %0.2f, \"field2\": %d}", temperature_value,fire_state);
GuilhermeLubk 0:e84b46bbec77 168 printf("Content Length = %d\r\n", (int)strlen(message));
GuilhermeLubk 0:e84b46bbec77 169
GuilhermeLubk 0:e84b46bbec77 170 /* Construct HTTP command to send */
GuilhermeLubk 0:e84b46bbec77 171 // Phase de transmission des données à ThingSpeaks.com
GuilhermeLubk 0:e84b46bbec77 172 sprintf(sbuffer, "GET /update?api_key=%s HTTP/1.1\r\nHost: api.thingspeak.com\r\nContent-Type: application/json\r\nContent-Length: %d\r\n\r\n%s", thingspeak_APIkey_write,
GuilhermeLubk 0:e84b46bbec77 173 (int)strlen(message),message);
GuilhermeLubk 0:e84b46bbec77 174 printf("HTTP command %s\r\n", sbuffer);
GuilhermeLubk 0:e84b46bbec77 175 wait(1.0); // temporisation avant la nouvelle transmission
GuilhermeLubk 0:e84b46bbec77 176
GuilhermeLubk 0:e84b46bbec77 177 // Send a simple http request
GuilhermeLubk 0:e84b46bbec77 178 printf("Sending HTTP request to thingspeak.com...\n");//
GuilhermeLubk 0:e84b46bbec77 179 nsapi_size_t size = strlen(sbuffer);
GuilhermeLubk 0:e84b46bbec77 180 response = 0;
GuilhermeLubk 0:e84b46bbec77 181 while(size) {
GuilhermeLubk 0:e84b46bbec77 182 response = socket.send(sbuffer+response, size);
GuilhermeLubk 0:e84b46bbec77 183 if (response < 0) {
GuilhermeLubk 0:e84b46bbec77 184 printf("Error sending data: %d\n", response);
GuilhermeLubk 0:e84b46bbec77 185 socket.close();
GuilhermeLubk 0:e84b46bbec77 186 return;
GuilhermeLubk 0:e84b46bbec77 187 } else {
GuilhermeLubk 0:e84b46bbec77 188 size -= response;
GuilhermeLubk 0:e84b46bbec77 189 // Check if entire message was sent or not
GuilhermeLubk 0:e84b46bbec77 190 printf("sent %d [%.*s]\n", response, strstr(sbuffer, "\r\n")-sbuffer, sbuffer);
GuilhermeLubk 0:e84b46bbec77 191 }
GuilhermeLubk 0:e84b46bbec77 192 }
GuilhermeLubk 1:2c451ce6086b 193 buzzer.write(0.8f);
GuilhermeLubk 0:e84b46bbec77 194
GuilhermeLubk 0:e84b46bbec77 195 // Receive a simple http response and print out the response line
GuilhermeLubk 0:e84b46bbec77 196 char rbuffer[64];
GuilhermeLubk 0:e84b46bbec77 197 response = socket.recv(rbuffer, sizeof rbuffer);
GuilhermeLubk 0:e84b46bbec77 198 if (response < 0) {
GuilhermeLubk 0:e84b46bbec77 199 printf("Error receiving data: %d\n", response);
GuilhermeLubk 0:e84b46bbec77 200 } else {
GuilhermeLubk 0:e84b46bbec77 201 printf("recv %d [%.*s]\n", response, strstr(rbuffer, "\r\n")-rbuffer, rbuffer);
GuilhermeLubk 0:e84b46bbec77 202 }
GuilhermeLubk 0:e84b46bbec77 203 // Close the socket to return its memory and bring down the network interface
GuilhermeLubk 0:e84b46bbec77 204 socket.close();
cadix_ach 2:e64b4470877a 205 fire_state=0;
GuilhermeLubk 0:e84b46bbec77 206 }
GuilhermeLubk 0:e84b46bbec77 207
GuilhermeLubk 0:e84b46bbec77 208
GuilhermeLubk 0:e84b46bbec77 209 } else {
GuilhermeLubk 0:e84b46bbec77 210 numReadings = 0;
GuilhermeLubk 0:e84b46bbec77 211 if(IR.read() == 0) {
GuilhermeLubk 0:e84b46bbec77 212 event_flags.set(0);
GuilhermeLubk 0:e84b46bbec77 213 IR.rise(&IR_ISP);
GuilhermeLubk 0:e84b46bbec77 214 printf("\nNo fire detected, returning IDLE\n\r");
GuilhermeLubk 0:e84b46bbec77 215 } else {
GuilhermeLubk 0:e84b46bbec77 216 event_flags.set(FIRE_DETECTED);
GuilhermeLubk 0:e84b46bbec77 217 printf("\nSensor still high, re-checking\n\r");
GuilhermeLubk 0:e84b46bbec77 218 }
GuilhermeLubk 0:e84b46bbec77 219 }
GuilhermeLubk 0:e84b46bbec77 220
GuilhermeLubk 0:e84b46bbec77 221
GuilhermeLubk 0:e84b46bbec77 222 }
GuilhermeLubk 0:e84b46bbec77 223 }
GuilhermeLubk 0:e84b46bbec77 224
GuilhermeLubk 0:e84b46bbec77 225
GuilhermeLubk 0:e84b46bbec77 226
GuilhermeLubk 0:e84b46bbec77 227 int main()
GuilhermeLubk 0:e84b46bbec77 228 {
GuilhermeLubk 1:2c451ce6086b 229 buzzer.period(0.5f); // 4 second period
GuilhermeLubk 1:2c451ce6086b 230 buzzer.write(0.0f);
GuilhermeLubk 0:e84b46bbec77 231 led1 = 0;
GuilhermeLubk 0:e84b46bbec77 232 led2 = 0;
GuilhermeLubk 0:e84b46bbec77 233 thread.start(mbed::callback(main_routine));
GuilhermeLubk 0:e84b46bbec77 234 button.fall(&button_ISP);
GuilhermeLubk 0:e84b46bbec77 235 IR.rise(&IR_ISP);
GuilhermeLubk 0:e84b46bbec77 236 //main function will sleep
GuilhermeLubk 0:e84b46bbec77 237 while(true) {
GuilhermeLubk 0:e84b46bbec77 238 wait(1);
GuilhermeLubk 0:e84b46bbec77 239 }
GuilhermeLubk 0:e84b46bbec77 240
GuilhermeLubk 0:e84b46bbec77 241 }