[Tuya Smart] Temperature and Humidity Meter

Function:

The MCU collects data from the temperature and humidity sensor and displays it on the display. Temperature and humidity data are uploaded to the cloud through the Tuya WIFI module and can be displayed in the mobile APP. The temperature and humidity meter also has infrared transceiver function, and the air conditioner can be controlled through the switch on the APP. The buzzer can sound the alarm, and the TF card can store data.

Power supply:

Powered by 3.7V battery. The battery is charged via USB plus a battery management chip. There are two 3.3V power supplies, one for the MCU and the other for the Tuya WIFI module. A voltage of 3.7V rises to 5V to power the display.

Demo video:

https://www.bilibili.com/video/BV13p4y1H7GM

Since the thermometer and hygrometer was debugged when I returned home during the holidays, it controls a Midea air conditioner at home. The demonstration video was taken just after school started, so you can only see the data sent by infrared through the serial port in the video.