It is the Bluetooth version (but the silkscreen on PCB mentions LD2410 without the B). For Android, use app from the Play store (HLKRadarTool). UART is connected to the USB. Has 2 LEDs: red power LED and green LED when person is detected. IMPORTANT: Does not work with USB-C/USB-C cable or charger. It has USB-C port, but does not support USB PD, so the charger (or port on laptop) won't provide any voltage and it will not power on. You must use USB-A / USB-C cable.

It is the Bluetooth version (but the silkscreen on PCB mentions LD2410 without the B). For Android, use app from the Play store (HLKRadarTool). UART is connected to the USB. Has 2 LEDs: red power LED and green LED when person is detected. IMPORTANT: Does not work with USB-C/USB-C cable or charger. It has USB-C port, but does not support USB PD, so the charger (or port on laptop) won't provide any voltage and it will not power on. You must use USB-A / USB-C cable.

It is the Bluetooth version (but the silkscreen on PCB mentions LD2410 without the B). For Android, use app from the Play store (HLKRadarTool). UART is connected to the USB. Has 2 LEDs: red power LED and green LED when person is detected. IMPORTANT: Does not work with USB-C/USB-C cable or charger. It has USB-C port, but does not support USB PD, so the charger (or port on laptop) won't provide any voltage and it will not power on. You must use USB-A / USB-C cable.

Well constructed radar module to detect presence. Better than IR ones that could be affected by thermal variations. I haven't tested yet if my module has Bluetooth capability.

Well constructed radar module to detect presence. Better than IR ones that could be affected by thermal variations. I haven't tested yet if my module has Bluetooth capability.

Well constructed radar module to detect presence. Better than IR ones that could be affected by thermal variations. I haven't tested yet if my module has Bluetooth capability.