LD2420 24GHz Radar Human Presence Sensor Detection Millimetre Wave Radar Module Replacement IR Supports Smart Light/Fan/Switch

Product Description
LD2420 is a 24GHz human presence sensing module, the working principle is 

to use FMC W FM continuous wave to detect human targets in the set space, 

combined with radar signal processing, accurate human presence sensing algorithms, 

to achieve high sensitivity human presence sensing, and can accurately perceive 

the human body in the movement and micro-movement state.
Mainly used in indoor scenarios, sensing whether there is a moving or slightly 

moving human body in the area, and outputting the results in real time.
Provides configuration tools to modify the sensing distance range, 

sensing sensitivity and unoccupied delay time.
Support GPIO and UART output, plug and play, 

can be flexibly applied to different intelligent scenes and terminal products.
Interface type: (2.54mm×5PIN)
1: VCC, 3.3V power input
2: GND, power ground
3: OT1, TX, serial port transmitter
4: RX, serial port receive
5: OT2, sense output high level
Default baud rate 115200, 1 stop bit, no parity bit.