Marko Spremic
Marko Spremic 2020/0066 Test3
Dependencies: MarkoSpremic20200066 19E042PIM_MB_PINS
Revision 0:84ea13a92da9, committed 2021-12-11
- Comitter:
- markospremic
- Date:
- Sat Dec 11 16:04:43 2021 +0000
- Child:
- 1:9f39e9bda966
- Commit message:
- Marko Spremic 2020/0066 Test3
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/19E042PIM_MB_PINS.lib Sat Dec 11 16:04:43 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 Sat Dec 11 16:04:43 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/markospremic/code/MarkoSpremic20200066/#156e65966dbf
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Dec 11 16:04:43 2021 +0000
@@ -0,0 +1,234 @@
+/*
+ *Marko Spremic
+ *Indeks: 2020/0066
+ */
+
+//ukljucivanje biblioteka
+#include "mbed.h"
+#include "mb_pins.h"
+#include "platform/mbed_thread.h"
+#include "MQTTClientMbedOs.h"
+#include "Adafruit_GFX.h"
+#include "Adafruit_GFX_Config.h"
+#include "Adafruit_SSD1306.h"
+
+
+// LED2 blinking rate:
+#define BLINKING_RATE_MS 250
+// Scaler to 3v3L
+#define VOLTAGE_SCALER 3.3f
+// Client yield timeout in miliseconds:
+#define YIELD_TIMEOUT_MS 1000
+// Maximum number of networks to scan for:
+#define MAX_NETWORKS 15
+// Small delay for network information printing:
+#define PRINTF_DELAY_MS 10
+
+ //I2C bus:
+#define SCL PB_13
+#define SDA PB_14
+
+//I2C address:
+#define I2C_ADDRESS 0x3c
+#define I2C_ADD_MBED I2C_ADDRESS<<1
+#define I2C_freq 400000
+
+//oled dimensions:
+#define OLED_HEIGHT_PX 64
+#define OLED_WIDTH_PX 128
+
+
+
+// Left potentiometer:
+AnalogIn pot1(MB_POT1);
+// Left button on the motherboard:
+InterruptIn sw1(MB_SW1);
+// Right LED on the motherboard:
+DigitalOut led2(MB_LED2);
+// Pointer to a WiFi network object:
+WiFiInterface *wifi;
+// Creating TCP socket:
+TCPSocket socket;
+// Creating MQTT client using the TCP socket;
+MQTTClient client(&socket);
+// Message handler:
+MQTT::Message message;
+I2C i2c_obj(SDA, SCL);
+Adafruit_SSD1306_I2c myOLED(i2c_obj, PB_5, I2C_ADD_MBED, OLED_HEIGHT_PX, OLED_WIDTH_PX);
+
+
+
+char* topic = "pimpub1";
+char* topic_sub = "pimsub1";
+// Counter of arrived messages:
+int arrivedcount = 0;
+// Flag indicating that button is not pressed:
+int button_pressed=0;
+// HiveMQ broker connectivity information:
+const char* hostname = "broker.hivemq.com";
+int port = 1883;
+char ms_show[100] = "";
+// Returning a string for a provided network encryption:
+
+
+int scan_networks(WiFiInterface *wifi)
+{
+ printf("Scan\n");
+
+ // Scan only for the number of networks, first parameter is NULL:
+ int count = wifi->scan(NULL, 0);
+ // If there are no networks, count == 0, if there is an error, counter < 0:
+ if (count <= 0)
+ {
+ printf("scan() failed with return value: %d\n", count);
+ return 0;
+ }
+
+ // Limit number of network arbitrary to some reasonable number:
+ count = count < MAX_NETWORKS ? count : MAX_NETWORKS;
+
+ // Create a local pointer to an object, which is an array of WiFi APs:
+ WiFiAccessPoint *ap = new WiFiAccessPoint[count];
+ // Now scan again for 'count' networks and populate the array of APs:
+ count = wifi->scan(ap, count);
+
+ // This time, the number of entries to 'ap' is returned:
+ if (count <= 0)
+ {
+ printf("scan() failed with return value: %d\n", count);
+ return 0;
+ }
+
+
+ delete[] ap;
+ return count;
+}
+//proverava tekst koji je primio
+char text_check ( char* text1, char* text2)
+{
+ int i;
+ for(i= 0; 1;i++)
+ {
+ if(text1[i] != text2[i])
+ return 0;
+ if(text1[i] == '\0')
+ break;
+ }
+ return 1;
+}
+
+
+char send_voltage = 0, oled = 0;
+ //kada stigne poruka
+void messageArrived(MQTT::MessageData& md)
+{
+ MQTT::Message &message = md.message;
+
+ char ms[100]; sprintf(ms, "%.*s",message.payloadlen, (char*)message.payload);
+ sprintf(ms_show, "%s", ms);
+ send_voltage = text_check(ms, "start")||send_voltage;//ukoliko je poruka start ili je pre toga start bio na 1
+ if(text_check(ms, "stop")) send_voltage = 0;//ako je poruka stop start ide na 0
+ oled = text_check(ms, "oled")||oled;//ako je poruka oled oled ide na 1 ili ako je oled vec na kecu
+ ++arrivedcount;
+}
+ //pritiskom na dugme prstaje prikaz na oledu
+void buttonFunction() {
+
+ oled = 0;
+
+}
+
+
+
+int main()
+{
+ // Set the interrupt event:
+ sw1.fall(&buttonFunction);
+
+ // Create a default network interface:
+ wifi = WiFiInterface::get_default_instance();
+ if (!wifi) {
+ printf("ERROR: No WiFiInterface found.\n");
+ return -1;
+ }
+
+ // Scan for available networks and aquire information about Access Points:
+ int count = scan_networks(wifi);
+ if (count == 0) {
+ printf("No WIFI APs found - can't continue further.\n");
+ return -1;
+ }
+ char send_ms[100] = "";
+
+ // Connect to the network with the parameters specified in 'mbed_app.json':
+ printf("\nConnecting 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("\nConnection error: %d\n", ret);
+ return -1;
+ }
+
+ // Print out the information aquired:
+ printf("Success\n\n");
+
+ // Open TCP socket using WiFi network interface:
+ socket.open(wifi);
+ // Connect to the HiveMQ broker:
+ socket.connect(hostname, port);
+ // Fill connect data with default values:
+ MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
+ // Change only ID and protocol version:
+ data.MQTTVersion = 3;
+ data.clientID.cstring = "pim-21";
+
+ // Connect the
+ int rc = 0;
+ if ((rc = client.connect(data)) != 0)
+ printf("rc from MQTT connect is %d\r\n", rc);
+
+ if ((rc = client.subscribe(topic_sub, MQTT::QOS2, messageArrived)) != 0)
+ printf("rc from MQTT subscribe is %d\r\n", rc);
+
+ myOLED.begin();
+ i2c_obj.frequency(I2C_freq);
+ myOLED.clearDisplay();
+ myOLED.display();
+ while (true) {
+
+ led2 = !led2;
+ thread_sleep_for(BLINKING_RATE_MS);
+ //ukoliko je primio start
+ if (send_voltage) {
+ // QoS 0
+ char buf[100];
+
+ sprintf(buf, "V(POT1) = %1.2f\r\n", pot1*VOLTAGE_SCALER);
+ sprintf(send_ms, "%s", buf);
+ message.qos = MQTT::QOS0;
+ message.retained = false;
+ message.dup = false;
+ message.payload = (void*)buf;
+ message.payloadlen = strlen(buf)+1;
+ client.publish(topic, message);
+ wait(10);
+ }
+ //ako je primio oled
+ if(oled)
+ {
+ myOLED.clearDisplay();
+ myOLED.resetCoordinate();
+ myOLED.printf("poslata poruka:\n%s", send_ms);//prikazivanje poslednje poslate poruke
+ myOLED.printf("Primljena poruka:\n%s", ms_show);//prikazivanje poslednje primljene poruke
+ myOLED.display();
+ }
+ //ako je stisnuto dugme
+ else
+ {
+ myOLED.clearDisplay();
+ myOLED.display();
+ }
+
+
+ client.yield(YIELD_TIMEOUT_MS);
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-mqtt.lib Sat Dec 11 16:04:43 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 Sat Dec 11 16:04:43 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 Sat Dec 11 16:04:43 2021 +0000
@@ -0,0 +1,25 @@
+{
+ "config": {
+ "wifi-ssid": {
+ "help": "WIFI SSID",
+ "value": "\"cvele97\""
+ },
+ "wifi-password": {
+ "help": "Wifi Password",
+ "value": "\"ekonomskitigar2021\""
+ }
+ },
+ "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