Connecting the DHT11 sensor Once the code was successfully running, I proceeded to follow the tutorial ESP32 with DHT11/DHT22 Temperature and Humidity Sensor using Arduino IDE. I first tried to follow ...

The DHT11 sensor uses a custom single-wire protocol for communication. The basic process for reading data involves: Sending a start signal to the DHT11 sensor. Reading a series of pulses from the ...

Arduino Soil Moisture Sensor Circuit – Connection Diagram Now that we have a complete understanding of how a Soil Moisture sensor works, we can connect all the required wires to the Arduino UNO board.

This paper presents designing and implementing an Automatic room temperature control system using the Arduino and DHT11 sensor. The fan speed control system has also been proposed. Here, the user sets ...