Diff: main.cpp

Revision:

0:82908a60b720

Child:

2:bcdecb244887

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Dec 10 18:13:38 2021 +0000
@@ -0,0 +1,84 @@
+#include "mb_pins.h"
+#include "mbed.h"
+#include "platform/mbed_thread.h"
+#include "MQTTClientMbedOs.h"
+
+#include "Adafruit_GFX.h"
+#include "Adafruit_GFX_Config.h"
+#include "Adafruit_SSD1306.h"
+
+///////////////////////////////////////////////////////////////
+
+#define SMALL_WAIT_MS 10
+
+//I2C adress
+#define I2C_ADDRESS         0x3c
+#define I2C_ADD_MBED    I2C_ADDRESS << 1
+
+//OLED DIMENSIONS
+#define OLED_HEIGHT_PX 64
+#define OLED_WIDTH_PX 128
+
+///////////////////////////////////////////////////////////////
+
+TCPSocket socket;
+MQTTClient client(&socket);
+MQTT::Message message;
+WiFiInterface *wifi;
+
+I2C i2c_obj(MB_OLED_SDA, MB_OLED_SCL);
+Adafruit_SSD1306_I2c myOLED(i2c_obj, PB_5, I2C_ADD_MBED, OLED_HEIGHT_PX, OLED_WIDTH_PX);
+
+char* topic_sub = "mbed-sample-sub";
+const char* hostname = "broker.hivemq.com";
+int port = 1883;
+
+///////////////////////////////////////////////////////////////
+
+void messageArrived(MQTT::MessageData& md)
+{
+    MQTT::Message &message = md.message;
+    printf("Browser message: %.*s \n", message.payloadlen, (char*)message.payload);
+    
+    myOLED.clearDisplay();
+    //myOLED.setTextCursor(0, 0);
+    myOLED.printf("%.*s \r", message.payloadlen, (char*)message.payload);
+    myOLED.display();
+}
+
+///////////////////////////////////////////////////////////////
+
+int main()
+{
+    wifi = WiFiInterface::get_default_instance();
+    
+    printf("Connecting to %s \n",MBED_CONF_APP_WIFI_SSID);
+    int ret = wifi->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
+    if(ret != 0){
+        printf("Greska u povezivanju");
+        return -1;
+    }
+    printf("Success\n");
+    
+    socket.open(wifi);
+    socket.connect(hostname,port);
+    
+    MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
+    data.MQTTVersion = 3;
+    data.clientID.cstring = "Mustafa";
+
+    client.connect(data);
+    client.subscribe(topic_sub, MQTT::QOS0, messageArrived);
+    
+    myOLED.begin(); //pocetak
+    i2c_obj.frequency(400000); //veca frekvencija slanja da ne bi ghostovalo
+    
+    myOLED.clearDisplay();
+    myOLED.display();
+    
+    
+    while(1) {
+        thread_sleep_for(SMALL_WAIT_MS);
+        client.yield(1000);
+    }
+}