Filip Stevanovic
MQTT to OLED
Dependencies: Adafruit_GFX 19E042PIM_MB_PINS
Revision 0:82908a60b720, committed 2021-12-10
- Comitter:
- filip_ste
- Date:
- Fri Dec 10 18:13:38 2021 +0000
- Child:
- 1:5992d7483ab2
- Commit message:
- MQTT to OLED;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/19E042PIM_MB_PINS.lib Fri Dec 10 18:13:38 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/tzwell/code/19E042PIM_MB_PINS/#5722459a201f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit_GFX.lib Fri Dec 10 18:13:38 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/nkhorman/code/Adafruit_GFX/#7fb1d4d3525d
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit_GFX_Config.h Fri Dec 10 18:13:38 2021 +0000 @@ -0,0 +1,1 @@ +#define GFX_WANT_ABSTRACTS \ No newline at end of file
--- /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);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-mqtt.lib Fri Dec 10 18:13:38 2021 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-mqtt/#7fa219e87b3355e8a6fd281659697fe3a0c87630
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Fri Dec 10 18:13:38 2021 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#e4b81f67f939a0c0b11c147ce74aa367271e1279
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed_app.json Fri Dec 10 18:13:38 2021 +0000
@@ -0,0 +1,25 @@
+{
+ "config": {
+ "wifi-ssid": {
+ "help": "WIFI SSID",
+ "value": "\"Fidra-wireless\""
+ },
+ "wifi-password": {
+ "help": "Wifi Password",
+ "value": "\"fiki2002tea2006\""
+ }
+ },
+ "target_overrides": {
+ "*": {
+ "platform.stdio-convert-newlines": true
+ },
+ "NUCLEO_L476RG": {
+ "target.network-default-interface-type": "WIFI",
+ "esp8266.tx" : "PC_4",
+ "esp8266.rx" : "PC_5",
+ "esp8266.provide-default" : true,
+ "drivers.uart-serial-rxbuf-size" : 1024,
+ "drivers.uart-serial-txbuf-size" : 1024
+ }
+ }
+}
\ No newline at end of file