Hardware Design Reference

Last Updated on : 2022-06-20 07:18:46download

A smart temperature and humidity sensor relies on a module chip to implement device control and communication. The built-in MCU sensor is used to collect ambient temperature and humidity data. The module chip receives the data over the Inter-Integrated Circuit (I2C) protocol and then it parses and reports the data to the cloud. Based on certain data reporting rules, the data is regularly reported, or it is immediately reported if the specified sensitivity threshold is exceeded.

The device is usually powered in three ways: dry battery, rechargeable battery, and mains power.

Design reference

Core components

Description	Model	Vendor	Remarks
Network module	CBU, BTU, ZTU	Tuya	Select a generic module chip that matches the specific protocol. For more information, see Network Modules.
Sensor chip	Common temperature and humidity sensors, such as microelectromechanical systems (MEMS) temperature and humidity sensor	Sensirui, Sensylink, and more	Visit the official website of each vendor and search the documentation and datasheets by target digital sensor model.

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