DIY Presence Sensor with Hi-Link LD241X and ESP32 for Home Assistant

ld2410

DIY Presence Sensor with Hi-Link LD241X and ESP32 for Home Assistant

All the presence sensors from hilink and it’s completely different sensors with different purpose.

d2410 (first one with no bluetooth), ld2410b (same one WITH bluetooth, which makes it easier to check levels with their app) or ld2410c (the bigger version with breadboard friendly pins) are the good ones, none of the others are, -if you need precision and accurancy.

Different LD2410 Sensor Versions

The Hi-Link LD2410 Presence Sensor actually has three available versions released, although the core functionality is the same. This guide uses the LD2410 model, without B or C, but the examples and wiring diagram bellow can be used for any of the LD2410 models. Here’s the main differences between:

LD2410	LD2410B	LD2410C
No Bluetooth	Has Bluetooth	Has Bluetooth
1.27mm pins	1.27mm pins	2.54mm pins

 

only the ld2410, lad2410b and ld2410c works as a presence sensor should and it’s mostly because the others don’t focus in the “still motion” and have other fancy features like gesture detection, planned to be for toilets to flush and so on.

not even the ld2410s is the same sensor and at unprecise as all the other models (which might not matter depending on where it should be placed and what it should be used for)

LD2410c, it work perfectly to automate all light . 

Home Assistant has an official integration for Hi-Link LD2410 distance sensor over Bluetooth (https://www.home-assistant.io/integrations/ld2410_ble/)

The LD2420 is cheaper for a reason, it’s worse in detecting static human presence and breathing than the LD2410.

While it does hold some advantages over the LD2410 (range), it produces more false triggers than the LD2410.

LD2420 has a better range and is cheaper compared to LD2410B/C.LD2420 has the advantage of being 3.3V powered.

LD2450 is better in multi-person detection.The LD2450 doesn’t have official ESPHome support.

ld2450 i would rather call a target tracker, because thats all it’s good at, fun but not useable because it easily lose a target, it got better in the last firmware but still just a geeky toy, no pratical usage since you cannot count on it. – this sensor they actually worked much longer on that some of the others non-2410 models but i guess it will never be what we wish it could b.

 

检测范围

可检测距离与安装环境、人的体积，相对角度，以及微动/运动幅度等众多因素有关，上述参数是我司使用纯模块的测试结果，微小动作和运动等描述都是定性描述，不是定量描述仅供参考。在不同测试条件下，请用户以实测为准

吸顶安装

2~6m

检测区域(与安装高度、灵敏度参数有关)

 

壁装

 

ha的蓝牙可以扫描到汽车的TBOX，开车回家自动开车库门

 

ld2410

https://github.com/liwei19920307/ESPMMW

我朋友用这个调好参数，一个区域里利用三个这个传感器实现三维定位，达到人在哪个灯头上就开哪个的效果.

 

不过我最喜欢领普的可以直接调感应距离.很适合有宠物的家庭。

而且用的是ESP32 C3，顺带能当个蓝牙网关用

 

海陵科 ld2410b  配合esp8266

 

1、抗干扰能力强：不受雨雪雾霾、温湿度、灰尘、光线、噪音等环境影响，检测灵敏度可手机自助调节。

 

2、穿透性强：可穿透玻璃、塑料、衣服、棉被、陶瓷、薄木板等材料。

 

3、  如果被测人员是背对雷达静坐，则感应效果会下降。因为背对雷达时，此时呼吸导致的胸腔或腹部的 起伏无法被测到。

 

4、  安装前方避免有金属及其他阻碍电磁波传输的物体遮挡天线、避开空调出风口，风扇等物体。抖动的设备及物体可能会被雷达探测到而判断有人存在。

 

source:https://smarthomescene.com/wp-content/uploads/2023/12/diy-presence-sensor-ld2410-esphome-different-ld2410-versions-1024x768.jpg.webp

海凌科的人体存在传感器LD2410B比较火，有论坛大神分享了几款定制的PCB+外壳.有ESPHome官方支持，2022年3月版本已完整支持了LD2410。

 

https://www.szlcsc.com/info/14467.html

 

https://smarthomescene.com/diy/diy-presence-sensor-with-hi-link-ld2410-and-esp32-for-home-assistant/