Using multi wifi and fully working using secureclient

src/main.cpp

@@ -1,17 +1,13 @@
+#include <DHT.h>
 #include <ESP8266WiFi.h>
 #include <ESP8266WiFiMulti.h>  // Include the Wi-Fi-Multi library
-#include <DHT.h>
-#include <Wire.h>
 #include <WiFiClientSecure.h>
+#include <Wire.h>
 
-// ESP8266WiFiMulti wifiMulti;     // Create an instance of the ESP8266WiFiMulti class, called 'wifiMulti'
+ESP8266WiFiMulti wifiMulti;  // Create an instance of the ESP8266WiFiMulti class, called 'wifiMulti'
 
 // WiFi connect timeout per AP. Increase when connecting takes longer.
-// const uint32_t connectTimeoutMs = 5000;
-
-// Replace with your network credentials
-const char* ssid = "Tanshu";
-const char* password = "openwrt15";
+const uint32_t connectTimeoutMs = 5000;
 
 // Replace with your server's address
 const char* serverAddress = "sensors.tanshu.com";
@@ -21,13 +17,13 @@ const int serverPort = 443;
 const int dhtPin = D4;
 
 // Replace with your device name
-const char* deviceName = "s1-orb";
+const char* deviceName = "s1-gwb";
 
 // Initialize the DHT sensor
 DHT dht(dhtPin, DHT22);
 
 // Function declaration
-void connectToWiFi();
+void setupWiFi();
 void sendSensorData(float temperature, float humidity, unsigned long timestamp, const char* device);
 void sendBufferedData();
 
@@ -47,13 +43,19 @@ const unsigned long interval = 30000;
 
 void setup() {
     Serial.begin(9600);
-  // Serial.setDebugOutput(true);
-  connectToWiFi();
+
+    setupWiFi();
 
     dht.begin();
 }
 
 void loop() {
+    // Maintain WiFi connection
+    if (wifiMulti.run(connectTimeoutMs) != WL_CONNECTED) {
+        Serial.print(".");
+        return;
+    }
+
     unsigned long currentTimestamp = millis();
 
     if (currentTimestamp - previousTimestamp >= interval) {
@@ -86,21 +88,18 @@ void loop() {
     }
 }
 
-void connectToWiFi() {
-  delay(2000);
-  Serial.println("Starting WiFi Connection");
+void setupWiFi() {
+    Serial.println("Setting up WiFi Connection");
 
     // Set in station mode
-  // WiFi.mode(WIFI_STA);
+    WiFi.mode(WIFI_STA);
+    WiFi.setPhyMode(WIFI_PHY_MODE_11G);
 
     // Register multi WiFi networks
-  // wifiMulti.addAP("Tanshu", "openwrt15");
-  WiFi.setPhyMode(WIFI_PHY_MODE_11G);
-  WiFi.begin(ssid, password);
+    wifiMulti.addAP("Tanshu", "openwrt15");
+    wifiMulti.addAP("Mozimo", "bestchocever");
 
-  // while (wifiMulti.run() != WL_CONNECTED) {
-  while (WiFi.status() != WL_CONNECTED) {
-    delay(500);
+    while (wifiMulti.run(connectTimeoutMs) != WL_CONNECTED) {
         Serial.print(".");
     }
 
@@ -114,30 +113,17 @@ void sendSensorData(float temperature, float humidity, unsigned long age, const
     String url = "/upload";
 
     WiFiClientSecure client;
-  client.setInsecure();//skip verification
+    client.setInsecure();  // skip verification
 
     if (!client.connect(serverAddress, serverPort)) {
         Serial.println("Failed to connect to server!");
         return;
     }
 
-  // if (client.verifyCertChain(serverAddress)) {
-  //   Serial.println("Certificate matches!");
-  // } else {
-  //   Serial.println("Certificate doesn't match!");
-  // }
-
     // Calculate the length of the payload
     String payload = "temp=" + String(temperature) + "&humidity=" + String(humidity) + "&age=" + String(millis() - age) + "&device=" + device;
     int payloadLength = payload.length();
 
-  Serial.println("POST " + url + " HTTP/1.1\r\n" +
-               "Host: " + String(serverAddress) + "\r\n" +
-               "Connection: close\r\n" +
-               "Content-Type: application/x-www-form-urlencoded\r\n" +
-               "Content-Length: " + String(payloadLength) + "\r\n\r\n" +
-              payload);
-
     client.print("POST " + url + " HTTP/1.1\r\n" +
                  "Host: " + String(serverAddress) + "\r\n" +
                  "Connection: close\r\n" +
@@ -167,7 +153,6 @@ void sendBufferedData() {
             unsigned long age = buffer[dataIndex].timestamp;
 
             // Attempt to send the data
-      // Serial.println("temp: " + String(temperature) + " // humidity: " + String(humidity) + " // age: " + String(millis() - age) + " // device: " + deviceName);
             sendSensorData(temperature, humidity, age, deviceName);
 
             // Wait a short time before sending the next data