📋 Experiment Instructions

Objective: Interface DHT11 sensor with ESP32 and send temperature & humidity data to ThingSpeak cloud platform using HTTP protocol.

  1. Review the ESP32 code for WiFi credentials, ThingSpeak API key, and DHT11 sensor configuration.
  2. Understand the code flow including WiFi connection, sensor initialization, and HTTP GET request creation.
  3. Click "Start Simulation" to initiate WiFi connection and send sensor data to the ThingSpeak cloud.
  4. Observe temperature and humidity readings from the DHT11 sensor being transmitted at regular intervals.
  5. Scroll down to view the ThingSpeak Cloud Dashboard with live data, real-time graphs, and updated timestamps.
  6. 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.

After start the simulation, the data will be send to Thingspeak Channel.

📊 ThingSpeak Cloud Dashboard

🔗 Connected to ThingSpeak Channel 2454420
🌡️ Temperature
--
°C
💧 Humidity
--
%
📡 Last Update
--
Time

📈 Temperature Trend

📈 Humidity Trend

🔗 View Full Channel on ThingSpeak →