Matrix display with MAX7219, ESP8266 and GY-21 in MicroPython

A nice big display alone can't be everything. After all, you don't buy a car just to put it in the garage so that it doesn't feel so alone. That's why the blog for this set shows the use of the matrix display with GY-21 temperature and humidity sensor and ESP8266. Due to the small number of components, this project, as well as the matrix display itself, is well suited for beginners. With the large LED matrix, you can display the values of the HTU21 sensor after the project has been implemented.

The following products of the project are included in the bundle:

• GY-21 HTU21 humidity and temperature sensor
• Jumper wire cable 3 x 40 pcs. 20 cm each M2M/ F2M / F2F
• Mini breadboard 400 pin with 4 power rails
• NodeMCU Lua Amica Module V2 ESP8266 ESP-12F
• MAX7219 8x32 4 in 1 Dot Matrix LED display module

To the complete blog article