Mihajlo Djordjevic / Mbed OS 19E042PIM_T3_2020_0438_final

Mihajlo Djordjevic 2020/438

Dependencies:   Adafruit_GFX 19E042PIM_MB_PINS

main.cpp@0:3e4e1cfbfd0d, 2021-12-11 (annotated)

Committer:
makotolagano
Date:
Sat Dec 11 10:15:42 2021 +0000
Revision:
0:3e4e1cfbfd0d
Child:
1:a1bf28d2dbdb
Samo jak gas ljubi brat ustima

Who changed what in which revision?

UserRevisionLine numberNew contents of line
makotolagano 0:3e4e1cfbfd0d 1 //MQTT & mbed libraries
makotolagano 0:3e4e1cfbfd0d 2 #include "mb_pins.h"
makotolagano 0:3e4e1cfbfd0d 3 #include "mbed.h"
makotolagano 0:3e4e1cfbfd0d 4 #include "platform/mbed_thread.h"
makotolagano 0:3e4e1cfbfd0d 5 #include "MQTTClientMbedOs.h"
makotolagano 0:3e4e1cfbfd0d 6 //Oled libraries
makotolagano 0:3e4e1cfbfd0d 7 #include "Adafruit_GFX.h"
makotolagano 0:3e4e1cfbfd0d 8 #include "Adafruit_GFX_Config.h"
makotolagano 0:3e4e1cfbfd0d 9 #include "Adafruit_SSD1306.h"
makotolagano 0:3e4e1cfbfd0d 10
makotolagano 0:3e4e1cfbfd0d 11 //Macros
makotolagano 0:3e4e1cfbfd0d 12 #define WAIT_MS 10
makotolagano 0:3e4e1cfbfd0d 13
makotolagano 0:3e4e1cfbfd0d 14 //I2C
makotolagano 0:3e4e1cfbfd0d 15 #define I2C_ADDRESS 0x3c
makotolagano 0:3e4e1cfbfd0d 16 #define I2C_ADD_MBED I2C_ADDRESS << 1
makotolagano 0:3e4e1cfbfd0d 17 #define OLED_HEIGHT_PX 64
makotolagano 0:3e4e1cfbfd0d 18 #define OLED_WIDTH_PX 128
makotolagano 0:3e4e1cfbfd0d 19
makotolagano 0:3e4e1cfbfd0d 20
makotolagano 0:3e4e1cfbfd0d 21 TCPSocket socket;
makotolagano 0:3e4e1cfbfd0d 22 MQTTClient client(&socket);
makotolagano 0:3e4e1cfbfd0d 23 MQTT::Message message;
makotolagano 0:3e4e1cfbfd0d 24 WiFiInterface *wifi;
makotolagano 0:3e4e1cfbfd0d 25
makotolagano 0:3e4e1cfbfd0d 26 I2C i2c_obj(MB_OLED_SDA, MB_OLED_SCL);
makotolagano 0:3e4e1cfbfd0d 27 Adafruit_SSD1306_I2c myOLED(i2c_obj, PB_5, I2C_ADD_MBED, OLED_HEIGHT_PX, OLED_WIDTH_PX);
makotolagano 0:3e4e1cfbfd0d 28
makotolagano 0:3e4e1cfbfd0d 29 char* topic_sub = "samo-jak-gas";
makotolagano 0:3e4e1cfbfd0d 30 const char* hostname = "broker.hivemq.com";
makotolagano 0:3e4e1cfbfd0d 31 int port = 1883;
makotolagano 0:3e4e1cfbfd0d 32
makotolagano 0:3e4e1cfbfd0d 33 void messageArrived(MQTT::MessageData& md)
makotolagano 0:3e4e1cfbfd0d 34 {
makotolagano 0:3e4e1cfbfd0d 35 MQTT::Message &message = md.message;
makotolagano 0:3e4e1cfbfd0d 36 printf("Browser message: %.*s \n", message.payloadlen, (char*)message.payload);
makotolagano 0:3e4e1cfbfd0d 37
makotolagano 0:3e4e1cfbfd0d 38 myOLED.clearDisplay();
makotolagano 0:3e4e1cfbfd0d 39 myOLED.setTextCursor(0, 0);
makotolagano 0:3e4e1cfbfd0d 40 myOLED.printf("%.*s \r", message.payloadlen, (char*)message.payload);
makotolagano 0:3e4e1cfbfd0d 41 myOLED.display();
makotolagano 0:3e4e1cfbfd0d 42 }
makotolagano 0:3e4e1cfbfd0d 43
makotolagano 0:3e4e1cfbfd0d 44 int main()
makotolagano 0:3e4e1cfbfd0d 45 {
makotolagano 0:3e4e1cfbfd0d 46 wifi = WiFiInterface::get_default_instance();
makotolagano 0:3e4e1cfbfd0d 47
makotolagano 0:3e4e1cfbfd0d 48 printf("Connecting to %s... \n",MBED_CONF_APP_WIFI_SSID);
makotolagano 0:3e4e1cfbfd0d 49 int ret = wifi->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
makotolagano 0:3e4e1cfbfd0d 50 if(ret != 0){
makotolagano 0:3e4e1cfbfd0d 51 printf("Greska u povezivanju");
makotolagano 0:3e4e1cfbfd0d 52 return -1;
makotolagano 0:3e4e1cfbfd0d 53 }
makotolagano 0:3e4e1cfbfd0d 54 printf("Success!\n");
makotolagano 0:3e4e1cfbfd0d 55
makotolagano 0:3e4e1cfbfd0d 56 socket.open(wifi);
makotolagano 0:3e4e1cfbfd0d 57 socket.connect(hostname,port);
makotolagano 0:3e4e1cfbfd0d 58
makotolagano 0:3e4e1cfbfd0d 59 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
makotolagano 0:3e4e1cfbfd0d 60 data.MQTTVersion = 3;
makotolagano 0:3e4e1cfbfd0d 61 data.clientID.cstring = "Zolica";
makotolagano 0:3e4e1cfbfd0d 62
makotolagano 0:3e4e1cfbfd0d 63 client.connect(data);
makotolagano 0:3e4e1cfbfd0d 64 client.subscribe(topic_sub, MQTT::QOS0, messageArrived);
makotolagano 0:3e4e1cfbfd0d 65
makotolagano 0:3e4e1cfbfd0d 66 myOLED.begin();
makotolagano 0:3e4e1cfbfd0d 67 i2c_obj.frequency(400000);
makotolagano 0:3e4e1cfbfd0d 68
makotolagano 0:3e4e1cfbfd0d 69 myOLED.clearDisplay();
makotolagano 0:3e4e1cfbfd0d 70 myOLED.display();
makotolagano 0:3e4e1cfbfd0d 71
makotolagano 0:3e4e1cfbfd0d 72
makotolagano 0:3e4e1cfbfd0d 73 while(1) {
makotolagano 0:3e4e1cfbfd0d 74 thread_sleep_for(WAIT_MS);
makotolagano 0:3e4e1cfbfd0d 75 client.yield(1000);
makotolagano 0:3e4e1cfbfd0d 76 }
makotolagano 0:3e4e1cfbfd0d 77 }