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--- latinet:unicaes:workshops:communication-23 [2024/09/10 20:26] – [2. ESP8266 and WiFi] harley.lara
+++ latinet:unicaes:workshops:communication-23 [2024/09/10 20:39] (current) – harley.lara
@@ Line 8: / Line 8: @@
 ===== 2. ESP8266 and WiFi =====
-Next, we'll take a closer look at connecting the ESP8266 to WiFi. This step is crucial for enabling wireless communication, allowing your devices to seamlessly interact with the digital world.fi
+Next, we'll take a closer look at connecting the ESP8266 to WiFi. This step is crucial for enabling wireless communication, allowing your devices to seamlessly interact with the digital world.
+In this example code, you will first of all connect to a WiFi network and then try to access a predefined API. This API is the root of our public weather station API. You can find out more about the project right here: [[eolab:weather_station:kamp-lintfort:start|HSRW Weather Station at Campus Kamp-Lintfort]].
 <file c++ wifi-http-api-example.ino>
@@ Line 27: / Line 29: @@
 // Create an instance of WiFiClientSecure
-WiFiClientSecure client;
+WiFiClientSecure wifi_client;
 void setup() {
@@ Line 46: / Line 48: @@
   // Set the client to verify the server's certificate
-  client.setInsecure();
+  wifi_client.setInsecure();
   // Give the client a chance to perform the handshake
@@ Line 55: / Line 57: @@
   if (WiFi.status() == WL_CONNECTED) {
-    client.connect(API_HOST, HTTP_PORT);
+    wifi_client.connect(API_HOST, HTTP_PORT);
     // Make an HTTPS GET request
-    client.println("GET " + String(API_ENDPOINT) + " HTTP/1.1");
+    wifi_client.println("GET " + String(API_ENDPOINT) + " HTTP/1.1");
-    client.println("Host: " + String(API_HOST));
+    wifi_client.println("Host: " + String(API_HOST));
-    client.println("Connection: close");
+    wifi_client.println("Connection: close");
-    client.println();
+    wifi_client.println();
     // Wait for the response
-    while (client.connected()) {
+    while (wifi_client.connected()) {
-      if (client.available()) {
+      if (wifi_client.available()) {
         // read an incoming byte from the server and print it to serial monitor:
-        char c = client.read();
+        char c = wifi_client.read();
         Serial.print(c);
       }
     }
-    client.stop();
+    wifi_client.stop();
   }
@@ Line 78: / Line 80: @@
 }
 </file>
-In this example code, you will first of all connect to a WiFi network and then try to access a predefined API. This API is the root of our public weather station API. You can find out more about the project right here: [[eolab:weather_station:kamp-lintfort:start|HSRW Weather Station at Campus Kamp-Lintfort]]
 ===== 3. Our first MQTT Publish =====
 Stepping ahead, you'll have the chance to implement your first MQTT publish from the ESP8266. While the following example provides a static demonstration, we encourage you to take it a step further by incorporating one of the sensors available to you.
-PubSubClient Library: [[https://github.com/knolleary/pubsubclient|PubSubClient by knolleary]]
+To start, search and install the library "PubSubClient " by Nick O'Leary in Arduino IDE or download and install it manually from source [[https://github.com/knolleary/pubsubclient| Github PubSubClient by knolleary]].
 <file c++ mqtt-publish.ino>