DIY Human Sensor L12 Base on HLK-LD2412

ESPHome
61

I use it succedfully, there is no delay.
Change throttle value in LD2412 section of yaml to 100ms, 2 seconds is far too much, that’s why it’s sluggish.
Remember this radar is very sensitive and reacts also what is BEHIND it. A small piece of metal would help as well.
I can see it is very reliable for around 4 meters (although distance is wildly inaccurate), decrease the gate to 6 and start from gate 2.
Firmware 1.25, background noise automatically performed.

Sitting 3 m away and watching TV for a few hours, didn’t lose me not once.

2 Likes
62

I was using 500ms, now I have 2 of them set at 100ms, we’ll see. I don’t see much of improvement right now, but the most problematica sensore on my bedroom got switched with a ld2410c recently, so it’s hard to me to see a real improvement

63

I can never get the my ESP to detect the LD2412, I tried changing RX and TX, tried other IO ports, even another device, I can connect to the device using the phone app and Bluetooth, even updated the firmware.