The GY-21P is a module in that combines a BMP280 sensor and an SI7021 sensor. The on-board BMP280+SI7021 sensor measures atmospheric pressure from 30kPa to 110kPa as well as relative humidity and temperature.
AM2320 is a simple to use, high performance temperature and humidity sensor capable of long distance signal transmission up to 20 meters.The product also has high reliability and excellent stability.
The DHt12 is an upgraded version of the DHT11 humidity temperature sensor, it is fully downward compatible, more precise and most importantly it adds an I2C interface.
In this example we will connect an LM75 temperature sensor to an ESP32 module, in this case our favourite Wemos LOLIN32. Lets look at some technical information about the LM75
In this example we will create a basic web server with an ESP32,
Adding support for ESP32 boards
I'm a big fan of the ESP8266 devices that are available so when I saw that there was an ESP32 available I was interested to have a look.