Objective: Interface DHT11 sensor with ESP32 and send temperature & humidity data to ThingSpeak cloud platform using HTTP protocol.
- Review the ESP32 code for WiFi credentials, ThingSpeak API key, and DHT11 sensor configuration.
- Understand the code flow including WiFi connection, sensor initialization, and HTTP GET request creation.
- Click "Start Simulation" to initiate WiFi connection and send sensor data to the ThingSpeak cloud.
- Observe temperature and humidity readings from the DHT11 sensor being transmitted at regular intervals.
- Scroll down to view the ThingSpeak Cloud Dashboard with live data, real-time graphs, and updated timestamps.
- Click "Stop Simulation" to terminate the connection and stop data transmission.
💡 Note: ThingSpeak allows data updates every 15 seconds. The ESP32 sends data to Channel 2454420 using HTTP GET with API Key authentication.