Smart temperature and humidity meter based on Tuya Smart

Project Introduction:

This project is developed using Tuya SDK, which enables you to quickly develop branded apps connecting and controlling smart scenarios of many devices. For more information, please check Tuya Developer Website.

This is a multifunctional thermometer and hygrometer developed using Tuya smart modules. You can use the mobile phone APP to obtain real-time temperature and hygrometer data, and provides infrared receiving and infrared transmitting functions for controlling other non-networked electrical appliances.

Since no external flash was added during the hardware design, the infrared signal cannot be stored when the power is turned off. Therefore, the setting of the infrared signal to be transmitted must be completed during programming, that is, after obtaining it through the receive function, the infrared signal is programmed into the transmitter. Program to realize the function of changing the infrared signal.

Implemented functions

This project has the following functions

1. Obtain temperature information and transmit it to APP
2. Get humidity information and transmit it to APP
3. Get the infrared signal of the remote control
4. Analog sending infrared signals to control electrical appliances
5. Powered by lithium battery with onboard charging function
6. The emission of infrared signals can be controlled through the function buttons on the mobile APP

Information about the hardware used

1. GD32E230K8T6
2. Lithium battery charging chip TP4057ST26P
3. Linear regulator XC6210B332MR
4. Temperature and humidity sensor SHT30-DIS
5. Infrared emission tube E6C0805IRAC1UDA940nm
6. 38KHZ remote control receiver IRM-H638T/TR2(DX)
7. 0.96 inch OLED

Physical display

Working status charging status mobile phone interface

other problems

During the test, the purchased infrared transmitting tube did not work very well, so I removed an infrared transmitting tube from an unused remote control and used it, and the effect was okay! ! ! During the video demonstration, the network may not be very good at the beginning, and there will be some delay when pressing the switch for the first time.