【Tuya Smart】AIoT_TAH_Sensor+493425S

A temperature and humidity meter with IoT attributes based on Tuya Smart , using an MCU development solution

Hardware parts:

This thermohygrometer can be powered by a lithium battery (4.2V) or micro-USB. When the lithium battery is out of power (about less than 3V), you can charge the lithium battery through micro-USB. The maximum charging current supports 2A. The lithium battery management chip model used is IP5306; it also has its own boost circuit and can output 5V/ 2A, used to power relays and buzzers, and to step down 5V to 3.3V through the LDO chip AMS1117-3.3 for MCU (model: STC8A8K64S4A12), 0.96-inch OLED display, networking module (model: WBR3), temperature The humidity sensor (model SHT31-DIS-B) is powered.

Functions to be implemented:

The temperature and humidity of the environment are detected through the temperature and humidity sensor, the data is transmitted to the networking module through the MCU, the current information is displayed on the APP, and the battery voltage can be read. It can be realized that under the set temperature and humidity conditions, a buzzer will be used to prompt when the value is exceeded, and the on and off of the relay can be controlled through APP and MCU to control the humidifier, electric fan or air conditioning socket, etc.