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Summary of Contents for Hi-Link HLK-LD2412
- Page 1 Shenzhen Hi-Link Electronic Co., Ltd. HLK-LD2412 Human presence sensor module User manual Version: V1.01 Modification date: 2024-4-18 Copyright@Shenzhen Hi-Link Electronic Co., Ltd. No.1 18 pages in total...
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Page 2: Table Of Contents
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. Content 1. Product Introduction ....................3 2. Product features and benefits ................. 4 2.1 Features ........................ 4 2.2 Solution advantages ..................5 3. Application scenarios ..................... 6 4. Hardware description ..................... 7 4.1 Dimensions .......................7 4.2 Pin definition .................... -
Page 3: Product Introduction
1. Product Introduction LD2412 is a high sensitivity 24GHz human presence sensing module developed by Hi-Link. Its working principle is to use FMCW FM continuous wave to detect the human body target in the set space, combined with radar signal processing and... -
Page 4: Product Features And Benefits
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. Figure 1 Diagram of usag 2. Product features and benefits 2.1 Features Plug and play, simple assembly method The longest sensing distance is up to 9m, configurable nearest and farthest detection distance ... -
Page 5: Solution Advantages
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. 2.2 Solution advantages LD2412 human sensing module adopts 24GHz millimeter wave radar sensor technology, which has obvious advantages in human sensing applications compared with other solutions: 1. In addition to being sensitive to the moving human body, it can also be sensitive to the stationary, micro-moving, sitting and lying human body that cannot be identified by traditional solutions;... -
Page 6: Application Scenarios
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. 3. Application scenarios The LD2412 human body sensing module can detect and identify the human body in motion, micro-movement, standing and sitting, and supports multi-level adjustment. It can be widely used in various scenarios of AIoT. The common types are as follows: ... -
Page 7: Hardware Description
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. Figure 3 Application Scenario 4. Hardware description 4.1 Dimensions Figure4 Module physical picture Figure5 Module size drawing Module size: 11mmx28mm Pin Spacing: 2.54mm No.7 18 pages in total... -
Page 8: Pin Definition
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. 4.2 Pin definition Figure6 Module pin definition diagram Name Function The default is Target state Human presence detected: output high level output No human body exists: output low level Output levels are configurable via commands... -
Page 9: The Role Of Configuration Parameters
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. also output the detection result data through the serial port according to the specified protocol, the serial port output data contains the target state and distance auxiliary information, etc., users can flexibly use according to the specific application scenario. -
Page 10: Visual Configuration Tool Description
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. ignored. The sensitivity value can be set in the range of 0 to 100. The sensitivity of each distance gate can be set independently, which can accurately adjust the detection within different distance ranges, accurately detect local areas or filter interference sources in specific areas. - Page 11 HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. 3. After the connection is successful, click the start button, and the graphical interface on the right will display the test results and data; 4. After connecting, the mode parameter information can be read or set without clicking the start button, or by clicking stop after starting;...
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Page 12: Installation Method And Sensing Range
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. 4.5 Installation method and sensing range Figure7 Ceiling installation diagram No.12 18 pages in total... -
Page 13: Installation Conditions
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. (Distance unit: meters, angle unit: degrees) Figure8 Wall installation diagram 4.6 Installation conditions Confirm minimum installation clearance If the radar needs to be installed with a shell, the shell must have good wave transmission properties at 24GHz and cannot contain metal or materials that can shield electromagnetic waves. - Page 14 HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. • There are continuously moving non-human objects in the sensing area, such as animals, continuously swinging curtains, large green plants facing the air outlet, etc. • There is a large area of strong reflectors in the sensing area. The strong reflectors will cause interference to the radar antenna.
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Page 15: Performance And Electrical Parameters
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. 5. Performance and electrical parameters 24GHz~ 24.25GHz Working Comply with FCC, CE, non-committee certification standards frequency Power supply DC 5V or DC 3.3V,Power supply capacity>200mA requirements Average 90mA working current FMCW Modulation One GPIO, IO level 3.3V... -
Page 16: Radome Design Guide
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. Figure9 Module operating current measurement data 6. Radome design guide 6.1 The impact of radomes on millimeter wave sensor performance •Radar waves are reflected at the boundary of the radome • The total power radiated or received by the radar is lost •... -
Page 17: Common Materials
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. 6.3 Common materials • Understand the material and electrical characteristics of the radome before designing • The table on the right is for reference only, the actual value should be confirmed with the supplier •... -
Page 18: Revision History
HLK-LD2412 manual Shenzhen Hi-Link Electronics Co., Ltd. 7. Revision history Date Version Modify content 2024-4-18 1.01 Test version 8. Technical support and contact information Shenzhen Hi-Link Electronic Co.,Ltd Address：17F，Building E, Xinghe WORLD, Minzhi Street, Long Hua district, Shenzhen 518131 Phone：0755-23152658/83575155 Website：https://www.hlktech.net/...
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