Felix HARERIMANA / Mbed 2 deprecated LORACODES

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Dependencies:   mbed

main.cpp@8:3dd7a4231f6e, 2020-11-05 (annotated)

Committer:
harerimana
Date:
Thu Nov 05 16:03:19 2020 +0000
Revision:
8:3dd7a4231f6e
Parent:
7:667534ecd34e 
LORA

Who changed what in which revision?

UserRevisionLine numberNew contents of line
harerimana 7:667534ecd34e 1 #include "mbed.h" // Include the library of Mbed
harerimana 7:667534ecd34e 2 #include "C12832.h" // Include the library of the specific LCD
harerimana 8:3dd7a4231f6e 3 #include "mbed_trace.h"
harerimana 8:3dd7a4231f6e 4 #include "mbed_events.h"
harerimana 8:3dd7a4231f6e 5 #include "LoRaWANInterface.h"
harerimana 8:3dd7a4231f6e 6 #include "SX1276_LoRaRadio.h"
harerimana 8:3dd7a4231f6e 7 #define DEVICEID "FELIX_220014243"
harerimana 8:3dd7a4231f6e 8 #define YELLOWBLINKINGDURATION 10
harerimana 8:3dd7a4231f6e 9 #define REDLIGHTONDURATION 15
harerimana 8:3dd7a4231f6e 10 // The port we're sending and receiving on
harerimana 8:3dd7a4231f6e 11 #define MBED_CONF_LORA_APP_PORT 1
harerimana 7:667534ecd34e 12
harerimana 8:3dd7a4231f6e 13 DigitalOut yellowled(LED4, 1); // Initializing the yellow light ON (same as yellowled = 1)
harerimana 8:3dd7a4231f6e 14 DigitalOut redled(LED1, 0); // Initializing the Red light to OFF (same as redled = 0)
harerimana 8:3dd7a4231f6e 15 InterruptIn pedestrianbutton(p5);
harerimana 7:667534ecd34e 16
harerimana 7:667534ecd34e 17 C12832 lcd(SPI_MOSI, SPI_SCK, SPI_MISO, p8, p11); // create an instance of LCD
harerimana 7:667534ecd34e 18
harerimana 7:667534ecd34e 19 int state = 0; // State variable indicating that YELLOW LIGHT IS ON
harerimana 7:667534ecd34e 20
harerimana 7:667534ecd34e 21 char pedestrianAdvert[] = "2 COFFEES FOR THE PRICE OF 1. ONLY AT CAMELIA";
harerimana 7:667534ecd34e 22 char carDriverAdvert[] = "RECEIVE 5%% REDUCTION ON YOUR FULL TANK ....";
harerimana 7:667534ecd34e 23
harerimana 8:3dd7a4231f6e 24
harerimana 8:3dd7a4231f6e 25 // Device credentials, register device as OTAA in The Things Network and copy credentials here
harerimana 8:3dd7a4231f6e 26 static uint8_t DEV_EUI[] = { 0x26, 0x10, 0x20, 0x20, 0x11, 0x11, 0x20, 0x20 };
harerimana 8:3dd7a4231f6e 27 static uint8_t APP_EUI[] = { 0x70, 0xB3, 0xD5, 0x7E, 0xD0, 0x03, 0x74, 0x72 };
harerimana 8:3dd7a4231f6e 28 static uint8_t APP_KEY[] = { 0x75, 0x57, 0x56, 0x65, 0xB1, 0x8A, 0x17, 0x52, 0x1B, 0x2D, 0x45, 0xD9, 0xFC, 0x90, 0x9E, 0x05 };
harerimana 8:3dd7a4231f6e 29
harerimana 8:3dd7a4231f6e 30
harerimana 8:3dd7a4231f6e 31 // Peripherals (LoRa radio, temperature sensor and button)
harerimana 8:3dd7a4231f6e 32 SX1276_LoRaRadio radio(D11, D12, D13, D10, A0, D2, D3, D4, D5, D8, D9, NC, NC, NC, NC, A4, NC, NC);
harerimana 8:3dd7a4231f6e 33 InterruptIn btn(BUTTON1);
harerimana 8:3dd7a4231f6e 34 // EventQueue is required to dispatch events around
harerimana 8:3dd7a4231f6e 35 static EventQueue ev_queue;
harerimana 8:3dd7a4231f6e 36 // Constructing Mbed LoRaWANInterface and passing it down the radio object.
harerimana 8:3dd7a4231f6e 37 static LoRaWANInterface lorawan(radio);
harerimana 8:3dd7a4231f6e 38 // Application specific callbacks
harerimana 8:3dd7a4231f6e 39 static lorawan_app_callbacks_t callbacks;
harerimana 8:3dd7a4231f6e 40 // LoRaWAN stack event handler
harerimana 8:3dd7a4231f6e 41 static void lora_event_handler(lorawan_event_t event);
harerimana 8:3dd7a4231f6e 42
harerimana 8:3dd7a4231f6e 43 // Send a message over LoRaWAN
harerimana 8:3dd7a4231f6e 44 static void send_message(long int timestamp, int value) {
harerimana 8:3dd7a4231f6e 45 uint8_t tx_buffer[50] = { 0 };
harerimana 8:3dd7a4231f6e 46 // Sending strings over LoRaWAN is not recommended
harerimana 8:3dd7a4231f6e 47 sprintf((char*) tx_buffer, "{\"deviceId\":\"%s\", \"timestamp\":%ld,\"value\":%d}", DEVICEID, timestamp, value);
harerimana 8:3dd7a4231f6e 48 int packet_len = strlen((char*) tx_buffer);
harerimana 8:3dd7a4231f6e 49 printf("Sending %d bytes: \"%s\"\n", packet_len, tx_buffer);
harerimana 8:3dd7a4231f6e 50 int16_t retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len, MSG_UNCONFIRMED_FLAG);
harerimana 8:3dd7a4231f6e 51 // for some reason send() returns -1... I cannot find out why, the stack returns the right number. I feel that this is some weird Emscripten quirk
harerimana 8:3dd7a4231f6e 52 if (retcode < 0) {
harerimana 8:3dd7a4231f6e 53 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - duty cycle violation\n")
harerimana 8:3dd7a4231f6e 54 : printf("send() - Error code %d\n", retcode);
harerimana 8:3dd7a4231f6e 55 return;
harerimana 8:3dd7a4231f6e 56 }
harerimana 8:3dd7a4231f6e 57 printf("%d bytes scheduled for transmission\n", retcode);
harerimana 8:3dd7a4231f6e 58 }
harerimana 7:667534ecd34e 59
harerimana 8:3dd7a4231f6e 60 int initialize_lora() {
harerimana 8:3dd7a4231f6e 61 if (DEV_EUI[0] == 0x0 && DEV_EUI[1] == 0x0 && DEV_EUI[2] == 0x0 && DEV_EUI[3] == 0x0 && DEV_EUI[4] == 0x0 && DEV_EUI[5] == 0x0 && DEV_EUI[6] == 0x0 && DEV_EUI[7] == 0x0) {
harerimana 8:3dd7a4231f6e 62 printf("Set your LoRaWAN credentials first!\n");
harerimana 8:3dd7a4231f6e 63 return -1;
harerimana 8:3dd7a4231f6e 64 }
harerimana 8:3dd7a4231f6e 65 printf("Press BUTTON1 to send the current value of the temperature sensor!\n");
harerimana 8:3dd7a4231f6e 66 // Enable trace output for this demo, so we can see what the LoRaWAN stack does
harerimana 8:3dd7a4231f6e 67 mbed_trace_init();
harerimana 8:3dd7a4231f6e 68 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
harerimana 8:3dd7a4231f6e 69 printf("LoRa initialization failed!\n");
harerimana 8:3dd7a4231f6e 70 return -1;
harerimana 8:3dd7a4231f6e 71 }
harerimana 8:3dd7a4231f6e 72 // prepare application callbacks
harerimana 8:3dd7a4231f6e 73 callbacks.events = mbed::callback(lora_event_handler);
harerimana 8:3dd7a4231f6e 74 lorawan.add_app_callbacks(&callbacks);
harerimana 8:3dd7a4231f6e 75 // Disable adaptive data rating
harerimana 8:3dd7a4231f6e 76 if (lorawan.disable_adaptive_datarate() != LORAWAN_STATUS_OK) {
harerimana 8:3dd7a4231f6e 77 printf("disable_adaptive_datarate failed!\n");
harerimana 8:3dd7a4231f6e 78 return -1;
harerimana 8:3dd7a4231f6e 79 }
harerimana 8:3dd7a4231f6e 80 lorawan.set_datarate(5); // SF7BW125
harerimana 8:3dd7a4231f6e 81 lorawan_connect_t connect_params;
harerimana 8:3dd7a4231f6e 82 connect_params.connect_type = LORAWAN_CONNECTION_OTAA;
harerimana 8:3dd7a4231f6e 83 connect_params.connection_u.otaa.dev_eui = DEV_EUI;
harerimana 8:3dd7a4231f6e 84 connect_params.connection_u.otaa.app_eui = APP_EUI;
harerimana 8:3dd7a4231f6e 85 connect_params.connection_u.otaa.app_key = APP_KEY;
harerimana 8:3dd7a4231f6e 86 connect_params.connection_u.otaa.nb_trials = 3;
harerimana 8:3dd7a4231f6e 87
harerimana 8:3dd7a4231f6e 88 lorawan_status_t retcode = lorawan.connect(connect_params);
harerimana 8:3dd7a4231f6e 89
harerimana 8:3dd7a4231f6e 90 if (retcode == LORAWAN_STATUS_OK ||
harerimana 8:3dd7a4231f6e 91 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
harerimana 8:3dd7a4231f6e 92 } else {
harerimana 8:3dd7a4231f6e 93 printf("Connection error, code = %d\n", retcode);
harerimana 8:3dd7a4231f6e 94 return -1;
harerimana 8:3dd7a4231f6e 95 }
harerimana 8:3dd7a4231f6e 96
harerimana 8:3dd7a4231f6e 97 printf("Connection - In Progress ...\r\n");
harerimana 8:3dd7a4231f6e 98 // make your event queue dispatching events forever
harerimana 8:3dd7a4231f6e 99 ev_queue.dispatch_forever();
harerimana 8:3dd7a4231f6e 100 return 0;
harerimana 8:3dd7a4231f6e 101 }
harerimana 7:667534ecd34e 102
harerimana 7:667534ecd34e 103 /**
harerimana 7:667534ecd34e 104 * Blinking a yellow LED.
harerimana 7:667534ecd34e 105 *
harerimana 7:667534ecd34e 106 * @param duration length of time to blink .
harerimana 7:667534ecd34e 107 */
harerimana 7:667534ecd34e 108 static void yellowblinking(int duration){
harerimana 8:3dd7a4231f6e 109 // Data to send
harerimana 8:3dd7a4231f6e 110 // send_message("FELIX", 220014243, 1);
harerimana 7:667534ecd34e 111 int counter=0;
harerimana 7:667534ecd34e 112 while(counter < duration)
harerimana 0:392dea3408f2 113 {
harerimana 7:667534ecd34e 114 counter+=1;
harerimana 7:667534ecd34e 115 yellowled = !yellowled;
harerimana 7:667534ecd34e 116 wait(1);
harerimana 7:667534ecd34e 117 }
harerimana 7:667534ecd34e 118 yellowled = 0;
harerimana 7:667534ecd34e 119 }
harerimana 7:667534ecd34e 120
harerimana 7:667534ecd34e 121 /**
harerimana 7:667534ecd34e 122 * Crossing pedestrian.
harerimana 7:667534ecd34e 123 *
harerimana 7:667534ecd34e 124 * @param duration length of time for pedestrian to cross.
harerimana 7:667534ecd34e 125 */
harerimana 7:667534ecd34e 126 static void pedestriancrossing(int duration){
harerimana 8:3dd7a4231f6e 127 // Data to send
harerimana 8:3dd7a4231f6e 128 //send_message("FELIX", 220014243, 2);
harerimana 7:667534ecd34e 129 redled = 1;
harerimana 7:667534ecd34e 130 int counter=0;
harerimana 7:667534ecd34e 131 while(counter < duration)
harerimana 7:667534ecd34e 132 {
harerimana 7:667534ecd34e 133 counter+=1;
harerimana 7:667534ecd34e 134 wait(1);
harerimana 7:667534ecd34e 135 }
harerimana 7:667534ecd34e 136 redled = 0;
harerimana 7:667534ecd34e 137 yellowled = 1;
harerimana 7:667534ecd34e 138 }
harerimana 7:667534ecd34e 139
harerimana 7:667534ecd34e 140 /**
harerimana 7:667534ecd34e 141 * Display content on LCD.
harerimana 7:667534ecd34e 142 *
harerimana 7:667534ecd34e 143 * @param advert The advertising text to be displayed.
harerimana 7:667534ecd34e 144 */
harerimana 7:667534ecd34e 145 static void display(char *advert) {
harerimana 7:667534ecd34e 146 lcd.cls(); // Clear LCD
harerimana 7:667534ecd34e 147 lcd.locate(10, 5); // get cursor to position x=3px and y=5px
harerimana 7:667534ecd34e 148 lcd.printf(advert); // Write text into LCD buffer
harerimana 7:667534ecd34e 149 lcd.copy_to_lcd();
harerimana 5:e1afaceb1196 150 }
harerimana 5:e1afaceb1196 151
harerimana 5:e1afaceb1196 152
harerimana 7:667534ecd34e 153 /**
harerimana 7:667534ecd34e 154 * Callback (Interrupt Service Routine) when a bouton is clicked.
harerimana 7:667534ecd34e 155 *
harerimana 7:667534ecd34e 156 */
harerimana 7:667534ecd34e 157 void pedestrian_isr() {
harerimana 7:667534ecd34e 158 wait(1);
harerimana 7:667534ecd34e 159 if (state == 0) // YELLOW IS ON AND RED IS OFF
harerimana 7:667534ecd34e 160 {
harerimana 7:667534ecd34e 161 state = 1; // YELLOW IS BLINKING AND RED IS OFF
harerimana 8:3dd7a4231f6e 162 send_message(220014243, state);
harerimana 7:667534ecd34e 163 display(pedestrianAdvert);
harerimana 7:667534ecd34e 164 yellowblinking(YELLOWBLINKINGDURATION);
harerimana 7:667534ecd34e 165 wait(1);
harerimana 7:667534ecd34e 166 state = 2; // YELLOW IS OFF AND RED IS ON
harerimana 8:3dd7a4231f6e 167 send_message(220014243, state);
harerimana 7:667534ecd34e 168 display(carDriverAdvert);
harerimana 7:667534ecd34e 169 pedestriancrossing(REDLIGHTONDURATION);
harerimana 7:667534ecd34e 170 state = 0;
harerimana 8:3dd7a4231f6e 171 send_message(220014243, state);
harerimana 7:667534ecd34e 172 lcd.cls();
harerimana 7:667534ecd34e 173 }
harerimana 7:667534ecd34e 174 if(state == 2) // RED
harerimana 7:667534ecd34e 175 {
harerimana 7:667534ecd34e 176 // extend the duration of RED by 5 seconds
harerimana 7:667534ecd34e 177 }
harerimana 7:667534ecd34e 178 }
harerimana 7:667534ecd34e 179
harerimana 7:667534ecd34e 180 int main() {
harerimana 8:3dd7a4231f6e 181 pedestrianbutton.rise(ev_queue.event(&pedestrian_isr)); // Registering an ISR for button click
harerimana 8:3dd7a4231f6e 182 initialize_lora();
harerimana 8:3dd7a4231f6e 183 // Data to send
harerimana 8:3dd7a4231f6e 184 //send_message("FELIX", 220014243, 0);
harerimana 7:667534ecd34e 185 }
harerimana 7:667534ecd34e 186
harerimana 8:3dd7a4231f6e 187 // Event handler
harerimana 8:3dd7a4231f6e 188 static void lora_event_handler(lorawan_event_t event) {
harerimana 8:3dd7a4231f6e 189 switch (event) {
harerimana 8:3dd7a4231f6e 190 case CONNECTED:
harerimana 8:3dd7a4231f6e 191 printf("Connection - Successful\n");
harerimana 8:3dd7a4231f6e 192 break;
harerimana 8:3dd7a4231f6e 193 case DISCONNECTED:
harerimana 8:3dd7a4231f6e 194 ev_queue.break_dispatch();
harerimana 8:3dd7a4231f6e 195 printf("Disconnected Successfully\n");
harerimana 8:3dd7a4231f6e 196 break;
harerimana 8:3dd7a4231f6e 197 case TX_DONE:
harerimana 8:3dd7a4231f6e 198 printf("Message Sent to Network Server\n");
harerimana 8:3dd7a4231f6e 199 break;
harerimana 8:3dd7a4231f6e 200 case TX_TIMEOUT:
harerimana 8:3dd7a4231f6e 201 case TX_ERROR:
harerimana 8:3dd7a4231f6e 202 case TX_CRYPTO_ERROR:
harerimana 8:3dd7a4231f6e 203 case TX_SCHEDULING_ERROR:
harerimana 8:3dd7a4231f6e 204 printf("Transmission Error - EventCode = %d\n", event);
harerimana 8:3dd7a4231f6e 205 break;
harerimana 8:3dd7a4231f6e 206 case JOIN_FAILURE:
harerimana 8:3dd7a4231f6e 207 printf("OTAA Failed - Check Keys\n");
harerimana 8:3dd7a4231f6e 208 break;
harerimana 8:3dd7a4231f6e 209 default:
harerimana 8:3dd7a4231f6e 210 MBED_ASSERT("Unknown Event");
harerimana 8:3dd7a4231f6e 211 }
harerimana 8:3dd7a4231f6e 212 }