What is the difference between HLK-LD2410B and HLK-LD2410C?
30 Jan 2025
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The HLK-LD2410B and HLK-LD2410C are sophisticated 24GHz human presence detection modules developed by Hi-Link. These modules employ Frequency-Modulated Continuous Wave (FMCW) radar technology to accurately detect human targets within a designated space, rendering them suitable for a variety of smart home and security applications. While both modules share fundamental functionalities, they exhibit distinct differences that warrant examination. This comparison delineates the key distinctions in design, features, and specific use cases associated with each module.
Both the HLK-LD2410B and HLK-LD2410C exhibit advanced 24GHz human presence detection capabilities, rendering them suitable for a diverse range of indoor applications. The primary distinctions between the two models pertain to their dimensions, pin pitch, and overall compactness. Specifically, the LD2410B offers greater design flexibility, making it particularly suited for larger-scale applications, with a pin pitch of 1.27 inches. Conversely, the LD2410C is engineered for compactness, thus better accommodating applications where miniaturization and aesthetic integration are paramount, featuring a pin pitch of 2.54 inches.
Core Technology and Features:
Both modules use the same basic principles and technology:
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Radar Technology: Both the LD2410B and LD2410C are built on FMCW radar technology, which allows them to detect human presence with high precision. They can identify both moving and stationary human bodies and even detect subtle movements like sitting or lying down.
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Maximum Sensing Range: Both modules offer a maximum sensing range of 5 meters, with a distance resolution of 0.75 meters. This provides accurate detection and positioning for human presence within indoor environments.
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Output Interface: Both modules support GPIO and UART outputs for easy integration with other systems, and both are plug-and-play, requiring minimal setup.
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Voltage Supply: They both support a wide voltage range of 5V to 12V for flexible power integration.
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Environmental Adaptability: Both models exhibit robust performance in fluctuating environmental conditions (such as temperature, humidity, and light), ensuring consistent operation even in challenging indoor environments.
Key Differences:
| Feature | HLK-LD2410B | HLK-LD2410C |
| Size | 7mm x 35mm (compact) | 16mm x 22mm (smaller and more compact) |
| Detection Angle | ±60 degrees | |
| Configuration Tool | Visual configuration tool available | |
| Design | Longer design (more room for custom designs) | Compact and smaller for more flexible integration |
| Installation Methods | Ceiling or wall mounting | |
| Sensitivity & Range Adjustments | Multi-level adjustments for sensitivity and distance range | |
| Target Applications | Indoor lighting control, smart homes, security, safety, energy savings | Same applications as LD2410B with an emphasis on compact space integration |
Key Advantages of Each Model:
HLK-LD2410B:
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Larger Design: The LD2410B has a slightly larger size, which may offer more design flexibility for specific applications where more physical space is available.
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Ideal for Traditional Installations: Its larger design may be beneficial for certain installations that do not prioritize minimizing size.
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High Versatility: The LD2410B is still compact but offers a larger form factor that may be easier to handle for projects requiring slightly more physical room for integration.
HLK-LD2410C:
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Compact Form Factor: The LD2410C is more compact and smaller, which makes it ideal for applications where size is critical, such as in embedded systems or tight spaces.
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Improved Aesthetics: Its smaller design allows for better aesthetic integration, especially when the module needs to be concealed in a device without compromising performance.
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Enhanced Flexibility: Its compact size makes the LD2410C more versatile for installations in environments where space constraints are present.
Solution Advantages for Both Modules:
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Human Body Detection: Both LD2410B and LD2410C possess the capability to detect both moving and stationary human bodies, as well as detect subtle movements such as sitting and lying down. This enhanced sensitivity distinguishes them from traditional solutions.
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Environmental Adaptability: Both modules are engineered to operate effectively in environments characterized by a range of conditions, including temperature, brightness, humidity, and light levels. This design consideration ensures their continued efficacy in various real-world applications.
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Aesthetic Integration: Both modules exhibit excellent shell penetration capabilities, which enables them to be concealed within devices without necessitating the alteration of the exterior surface. This feature enhances the aesthetic appeal of the final product.
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Flexible Detection and Sensitivity Settings: Both models offer users the capability to modify the sensing distance, adjust sensitivity at various intervals, and configure delay times, thereby enabling tailored settings for specific applications.
Applications of Both Models:
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Human Body Sensor Light Control:
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Both modules automatically detect human presence and can control lighting systems, ideal for smart homes, offices, public spaces, or any sensor-controlled lighting system.
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Advertising Screen Wake-Up:
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The modules can activate advertising screens or other electronic equipment when a person enters the detection range, improving energy efficiency and user interaction.
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Life Safety Protection:
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Both models can prevent dangerous equipment such as UV lamps from operating when humans are nearby, safeguarding users from accidental exposure.
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Intelligent Security:
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Both modules provide real-time tracking of human presence for use in security systems, such as intrusion detection or hazard zone monitoring.
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Energy Efficiency:
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The modules help automatically turn off devices like air conditioners or TVs when no one is present, saving energy and enhancing safety.
