vuk stijepovic 2020/0639
Dependencies: Adafruit_GFX StrLib Util 19E042PIM_MB_PINS
main.cpp
- Committer:
- vukstijepovic
- Date:
- 2021-12-11
- Revision:
- 0:0de9c1e5bad1
File content as of revision 0:0de9c1e5bad1:
#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" #include<string> #include "stringUtils.h" #define SMALL_WAIT_MS 10 #define I2C_ADDRESS 0x3c #define I2C_ADD_MBED I2C_ADDRESS << 1 #define OLED_HEIGHT_PX 64 #define OLED_WIDTH_PX 128 #define VOLTAGE_SCALER 3.3f AnalogIn pot1(MB_POT1); 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); using namespace std; char* subpim = "mbed-sample-sub"; char* pubpim = "mbed-sample-pub"; const char* hostname = "broker.hivemq.com"; int port = 1883; void messageArrived(MQTT::MessageData& md) { char buf[100]; sprintf(buf, "V(POT1) = %1.2f\r\n", pot1*VOLTAGE_SCALER); message.qos = MQTT::QOS0; message.retained = false; message.dup = false; message.payload = (void*)buf; message.payloadlen = strlen(buf)+1; client.publish(pubpim, message); 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 = "pim-11"; client.connect(data); client.subscribe(subpim, MQTT::QOS0, messageArrived); myOLED.begin(); i2c_obj.frequency(400000); myOLED.clearDisplay(); myOLED.display(); while(1) { thread_sleep_for(SMALL_WAIT_MS); client.yield(1000); } }