Building the Sensor Module

Let’s now see how to configure the hardware for the sensor module. Thanks to the Adafruit ESP8266 board, it is really simple to build this module on a breadboard.

The first step is to place the ESP8266 breakout board on the breadboard, as well as the DHT sensor. Then, connect the V+ (or VCC) pin from the ESP8266 board to the first pin of the DHT sensor (look at the picture below).

After that, connect the GND pin of the ESP8266 to the last pin of the DHT. Finally, connect pin number 5 of the ESP8266 breakout board to the pin number 2 of the DHT sensor.

This is the final result:

As mentionned before, you will see that I used a DHT11 sensor on this picture. However, the code you will find on GitHub is made for the DHT22 sensor, and I really suggest using a DHT22 sensor as it is more precise.

This guide was first published on Jul 28, 2015. It was last updated on Jul 28, 2015. This page (Building the Sensor Module) was last updated on Oct 22, 2019.