Alex 1

• asked Jul 5

URB2424S-3WR3 CTRL pin behavior inconsistent with datasheet

Hello, I am using the URB2424S-3WR3 DC/DC converter module in my design and I have observed a discrepancy between the datasheet description and the actual behavior of the device. According to the datasheet: “When floating or high resistance...

urb2424s-3wr3

0 votes

3 answers

44 views

Vicbot 1

• asked Nov 18, 2025

My HLK-7688A module does not open web configuration page.

Hello, I recently bought your HLK-7688A module from Aliexpress, and I also referred your user's manual below explaining how to open web configuration page: Microsoft Word - 7628N user manual.doc [https://fccid.io/2AD56HLK-7628N/User-Man...

hlk-7688a

0 votes

1 answers

65 views

muhammed Dogan 11

• asked Nov 17, 2025

FM225 Face Recognition module Image Capture feature

Hi, We bought your FM225 face recognition module and we want to use it for capturing image with UART commands but module reject 0x71, 0x72, 0x74 commands. We tried it also with encryption but encryption failing. we couldnt communicate with ...

fm225-

1 votes

2 answers

112 views

Camilo 1

• asked Oct 30, 2025

PC software for ld6001 and ld6001A

We recently bought a LD6001 and a LD6001A for people tracking, on both product guides guides respective pc gui viewer are mentioned, however we are unable to find them. We would like to have the viewers in order to test the modules and to h...

support

0 votes

2 answers

272 views

Zigi 1

• asked Aug 7

Info about HLK-LD2454 Radar Sensor

Hello, I'm looking for information about the HLK-LD2454 sensor - I can't find any documntation is the HiLink website nor elswhere: (1) Can you give a link to the datasheet? I can't find it; (2) What connector is used for power a...

hlk-ld2454

0 votes

0 answers

4 views

gourav verma 1

• asked Jul 25

LD2402 observation: "Moving" reported despite motion energy never approaching threshold

Additional observation: "Moving" reported despite motion energy never approaching threshold While testing gate thresholds, observed the sensor consistently reporting result=1 (moving) even when motion energy stayed well below its th...

ld2402

0 votes

2 answers

37 views

Girish 3

• asked Jul 30

LD2420 is working only in ASCII mode

Hi I had purchased a LD2420 sensor I had connected it to ESP32 as per the sketch shown in [https://github.com/cyrixninja/LD2420] . But I understand that my sensor is working only in ASCII mode and not in binary mode. Because of this the exi...

ld2420,-firmware-upgrade--

0 votes

2 answers

42 views

Camilo 1

• asked Feb 12

Fall deteccion from the wall

We want to implement a system with fall detection, we initialle considet the LD6002C but that one needs to be installed on the ceiling. Is there a solution for fall detecciton but from the wall? (similar to the MR60FDA2 from seeed)

ld6002c fall

0 votes

0 answers

21 views

Draco 1

• asked Feb 12

Encryption levels ZW0623

Does the ZW0623 sensor support encryption levels above 1?

zw0623 hlk-zw0623

0 votes

0 answers

15 views

Ruhland 1

• asked Feb 10

LD2410S Data refresh cycle

Hello, I'm using the LD2410S for a battery-powered system. It's excellent and very energy-efficient. However, I need a longer data refresh cycle time, ideally up to 1800 seconds. Is this technically possible, or do you have a differ...

ld2410s-data-refresh-cycle

0 votes

1 answers

79 views