Look at the circuit diagram below: RX0 - RXn is the resistance to be measured. The circuit working idea is: the current source is connected to the output end of CD4051 through an unknown small resisto
1. Introduction
Suitable for access control of residential buildings, its main function is to support password input and face recognition unlocking.
Can be viewed remotely2. System Block Diagram
The a
Author: Amelie Zheng
In recent years, millimeter wave radar technology has become increasingly mature. In the previous section, we mainly introduced the application of barrier radar in the industrial