Adam 1

• asked Nov 18, 2025

LD012 Re-programming

Hello! The user manual for HLK-LD012-5G states: The state matches the specific resistance on the module to select the corresponding gear or use the external MCU reserved on the module to rewrite the internal parameters. But I cannot find do...

ld012

0 votes

1 answers

33 views

Vicbot 1

• asked Nov 18, 2025

The official firmware of HLK-7688A module.

Hello, I found your firmware from the link below: [https://drive.google.com/drive/folders/1fNV08Eu1_OCQUpqZ8By9CD68w4Ibh8fZ] Is the firmware marked in green box, named as "7688A openwrt.bin" your official firmware for HLK-7688A modu...

hlk-7688a

0 votes

0 answers

46 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

59 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

70 views

admin 1

• asked Nov 13, 2025

LD2410 APP USE

HOW LD2410B TO USER

ld2410

0 votes

1 answers

125 views

Jacky 1

• asked Nov 12, 2025

ZW0901

Can you provide me a library for Arduino or a sample code about how to use HLK-ZW0901.Please give most about how to use it,For example regit and move fingerprint and more about the hlk-zw0901's function

support

0 votes

1 answers

56 views

samir 1

• asked Nov 12, 2025

HLK-RM08K reconnection issue

Hi, I've used HLK-RM04 in "ETH-Serial" and "DHCP" mode before and now I've switched to RM08K. The problem is that my HLK-RM08K (firmware V3.60) does not reconnect to Ethernet after the cable is unplugged and replugge...

support

0 votes

2 answers

41 views

Vyceslav 1

• asked Nov 11, 2025

HLK-LD6002脉搏和呼吸检测器输出00000000

HLK-LD6002脉搏和呼吸检测器输出00000000。 数据传输速率为1382400波特。 已安装 HLK-LD6002 V1.0 和 ANDAR ADTE210400XXNA01 V2.0。 安装说明：Windows 7，x64。 包含 CP210x_Windows_Drivers 和 Hi-Link 驱动程序。 为什么速度为 1382400 时只传输数据 000000000，而这些数据不包含任何信息？

support

0 votes

1 answers

91 views

Luke 1

• asked Nov 7, 2025

2.44.25070917 Release Notes

Hello, I noticed that a new firmware version is available for the LD2410C but there are no release notes for it. Have searched [https://www.hlktech.net/ and https://drive.google.com/drive/folders/1ypOlacBmmFXY6lDQ0f1hEJFmczNe-0WG] as well s...

support

0 votes

1 answers

79 views

Leandro 1

• asked Oct 31, 2025

HLK-LD2410C

Hi I am using the LD-2410C v1.0 with firmware v2.04. Is this module only configurable through bluetooth? Because I can see everything on the HLK app, but when I try to configure the module using serial UART I am not getting any ACK back. I ...

support

0 votes

1 answers

99 views