Technical requirements

Before we begin, make sure that you have the following things ready:

• A computer with an OS, such as Windows, Linux, or Mac, installed.
• An ESP32 development board. The ESP-WROVER-KIT board from Espressif is recommended. 
• An ESP32 development environment configured on your computer.

• An DHT22 sensor module.
• The CoolTerm tool, which can read and write data over serial communication (UART). This is available for Windows, Linux, and Mac. We set our serial tool to the ESP32 board with Baudrate 115200.