Product Description LD2420 is a 24GHZ human presence sensing module. Its working principle is to use FMCW FM continuous wave to detect human body targets in the set space, and combine radar signal processing and accurate human body sensing algorithm to achieve high sensitivity human presence state sensing, which can accurately sense the human body in the motion micro-motion state. It is mainly used in indoor scenes to perceive whether there is movement or micro-movement of human body in the area and output the results in real time. Configuration tools can be provided to modify the sensing distance range, sensing sensitivity and unmanned delay time. GPIO and UART output are supported. Plug and play can be flexibly applied to different intelligent scenarios and terminal products. Product Characteristics -Frequency: 24G-24.25GHz - modulation mode: FMCW detection distance: 0.75~6m adjustable detection angle: earth 60 power supply: 3.3V (Typ.) -Current:~50mA Output serial port level: 3.3V Sweep bandwidth: 250MHz (in line with CE/FCC certification standard) -Ambient temperature: - 40 ° C~+85 ° C Data format: serial port ASCII output/high and low level 3.3V&OV package form: with pin by default, can be customized with or without pin