Hi guys.I have one bluetooth module through which I connected one ld2410B sensor to HASS. I created another esp32 bluetooth proxy module today and connected the second ld2410 to HASS through it. I found out that the first ld which previously responded normally does not turn off now and keeps switching. how can i fix this please? thank you
I have two LD2410C running fine but I found the bluetooth connection to HA even when using ESPHome Bluetooth proxies to not be reliable. I ended up connecting each LD2410 to my ESP32 bluetooth proxies via the UART pins for tx/rx on the LD2410 and now have rock solid connections for presence sensing.
So now, I have two ESP32 running bluetooth proxies for HA and also have a LD2410C directly connected to each with 4 wires (VCC, GND, TX & RX). I am using a ESP32 D1 Mini Compatible board and had problems using GPIO1 & GPIO3 for the TX & RX pins so I ended up using GPIO16 & GPIO17 and they now work with no issues. Also got the internal blue LED on the ESP32 board to light up when motion is detected. Its a shame that the red LED on the ESP32 board seems to be hard wired for power so it cannot be disabled by code.
Also, are the LD2410 in different rooms so that their radar signals don’t interfere with each other? I noticed the following note for the LD2420 (which may also apply to the LD2410 sensor) on ESPHome:
Important Information:
Solid objects and noise outside the detection_gate_max
and detection_gate_min
can cause false detections or abnormal gate thresholds. For example if the gate max range includes a wall it can potentially generate signal reflections. If you see unusual detections confirm the issue by placing the sensor in a completely open area. Never place two sensors in each others detection field, this will certainly cause false detections. Noise is a problem in many enviroments and future releases of this component will have an auto noise floor configuration option once Hi-Link provided full documentation.