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Arduino board ready for an electronics project

Learn electronics by building

Electronics and IoT projects you can actually build

Practical tutorials and structured courses for Arduino, ESP32, Raspberry Pi, sensors, and smart-home systems.

DHT22 sensorTemperature + humidity
ESP32Reads the sensor and hosts the page
Your local Wi-Fi
Room monitor · Example readings

Temperature

24.3 °C

Humidity

48 %

Open the dashboard on your phone or computer. No display attached to the board.

Free ESP32 temperature guide

Build a live room monitor with an ESP32 and DHT22

Follow the exact wiring and complete Arduino code, then open live temperature and humidity readings from any browser on your network.

  • ESP32 + DHT22 setup
  • Local dashboard
  • Wiring and code
  • Troubleshooting checks
Get the free guide