Revision 4:5b78021768e2, committed 2021-05-07

Comitter:

nenad

Date:

Fri May 07 13:44:12 2021 +0000

Parent:

3:43527b1910c7

Commit message:

Ethernet mqtt server

Changed in this revision

diff -r 43527b1910c7 -r 5b78021768e2 main.cpp
--- a/main.cpp	Mon Apr 26 21:46:12 2021 +0000
+++ b/main.cpp	Fri May 07 13:44:12 2021 +0000
@@ -1,35 +1,22 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2019 ARM Limited
- * SPDX-License-Identifier: Apache-2.0
- */
+
 
 #include "mbed.h"
-//#include "EthernetInterface.h"
+#include "EthernetInterface.h"
 #include "platform/mbed_thread.h"
 #include <MQTTClientMbedOs.h>
+
 // Blinking rate in milliseconds
-#define BLINKING_RATE_MS                                                    500
-// Initialise the digital pin LED1 as an output
-    DigitalOut led(LED1);
-
-
-InterruptIn button(USER_BUTTON);
+#define BLINKING_RATE_MS 500
+DigitalOut led(LED1);
 
 int arrivedcount = 0;
 TCPSocket socket;
 MQTTClient client(&socket);
 MQTT::Message message;
 
-int button_pressed=0;
 
-float version = 0.6;
-    char* topic = "mbed-sample-pub";
-    char* topic_sub = "mbed-sample-sub";
-
-
-
-
-WiFiInterface *wifi;
+char* topic_pub = "PMK-server-topic-pub";
+char* topic_sub = "PMK-client-temperature";
 
 const char *sec2str(nsapi_security_t sec)
 {
@@ -50,41 +37,6 @@
     }
 }
 
-int scan_demo(WiFiInterface *wifi)
-{
-    WiFiAccessPoint *ap;
-
-    printf("Scan:\n");
-
-    int count = wifi->scan(NULL,0);
-
-    if (count <= 0) {
-        printf("scan() failed with return value: %d\n", count);
-        return 0;
-    }
-
-    /* Limit number of network arbitrary to 15 */
-    count = count < 15 ? count : 15;
-
-    ap = new WiFiAccessPoint[count];
-    count = wifi->scan(ap, count);
-
-    if (count <= 0) {
-        printf("scan() failed with return value: %d\n", count);
-        return 0;
-    }
-
-    for (int i = 0; i < count; i++) {
-        printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(),
-               sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2],
-               ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel());
-    }
-    printf("%d networks available.\n", count);
-
-    delete[] ap;
-    return count;
-}
-
 void messageArrived(MQTT::MessageData& md)
 {
     MQTT::Message &message = md.message;
@@ -93,62 +45,30 @@
     ++arrivedcount;
 }
 
-void buttonFunction() {
-    
-    button_pressed=1;
-   
-}
-
-
-
-
 int main()
-{
-    button.rise(&buttonFunction);  // attach the address of the flip function to the rising edge
+{   
+    printf("PMK2021 Ethernet MQTT example\r\n");
     
     const char* hostname = "broker.mqttdashboard.com";
     int port = 1883;    
     // Network interface
-    //EthernetInterface net;
-    
-    wifi = WiFiInterface::get_default_instance();
-    if (!wifi) {
-        printf("ERROR: No WiFiInterface found.\n");
-        return -1;
-    }
-
-    int count = scan_demo(wifi);
-    if (count == 0) {
-        printf("No WIFI APs found - can't continue further.\n");
-        return -1;
-    }
+    EthernetInterface net;    
+    // Bring up the ethernet interface    
+    net.connect();
 
-    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;
-    }
-
-    printf("Success\n\n");
-    printf("MAC: %s\n", wifi->get_mac_address());
-    printf("IP: %s\n", wifi->get_ip_address());
-    printf("Netmask: %s\n", wifi->get_netmask());
-    printf("Gateway: %s\n", wifi->get_gateway());
-    printf("RSSI: %d\n\n", wifi->get_rssi());   
-     
-    
-            
+    // Show the network address
+    const char *ip = net.get_ip_address();
+    printf("IP address is: %s\r\n", ip ? ip : "No IP");        
     
     //client = MQTTClient::(&socket);
-    socket.open(wifi);
+    socket.open(&net);
     socket.connect(hostname, port);
     
     int rc=0;
     
     MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
     data.MQTTVersion = 3;
-    data.clientID.cstring = "mbed-sample";
+    data.clientID.cstring = "PMK-server";
     //data.username.cstring = "testuser";
     //data.password.cstring = "testpassword";
     if ((rc = client.connect(data)) != 0)
@@ -156,35 +76,14 @@
 
     if ((rc = client.subscribe(topic_sub, MQTT::QOS2, messageArrived)) != 0)
         printf("rc from MQTT subscribe is %d\r\n", rc);
-
-    
-      
-    
-    
-    
+ 
 
     while (true) {
         led = !led;
         thread_sleep_for(BLINKING_RATE_MS);
-        if (button_pressed==1) {
-            button_pressed=0;    
-            printf("sace publish\r\n");    
-            // QoS 0
-            char buf[100];
-            sprintf(buf, "Hello World!  QoS 0 message from app version %f\r\n", version);
-            message.qos = MQTT::QOS0;
-            message.retained = false;
-            message.dup = false;
-            message.payload = (void*)buf;
-            message.payloadlen = strlen(buf)+1;
-            client.publish(topic, message);
-            //pc.printf("sace jild\r\n"); 
-            //client.yield(1000);
-            //pc.printf("izjildovo\r\n"); 
-        }
-        printf("sace jild\r\n"); 
+        printf("Server Yielding   "); 
         client.yield(1000);
-        printf("izjildovo\r\n"); 
+        printf(" -> Yielded\r\n"); 
         
     }
 }