Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Frequency | 24 GHz ISM Band |
| Detection Range | 0.5m to 8m (Adjustable) |
| Power Supply | 3.3V DC ±0.3V |
| Average Current | < 60 µA (Standby Mode) |
| Interface Type | UART TTL / GPIO |
| Beam Angle | ±45 degrees horizontal |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 26mm x 14mm x 2.5mm |
| Motion Sensitivity | Configurable via Serial Command |
| Package Type | SMD Module with Shielding Can |
Anonymous
Mar 30, 2026
Rating: 5/5
Reliable presence detection
We deployed these in several conference rooms to manage HVAC systems. Unlike PIR sensors, this one knows people are still in the room even if they are sitting still at their desks.
Anonymous
Mar 25, 2026
Rating: 4/5
Great value but needs calibration
The hardware quality is excellent for the price. However, you need to spend some time tuning the sensitivity parameters via UART to get the exact detection zone you want. Once configured, it is very reliable.
Anonymous
Mar 16, 2026
Rating: 5/5
Low power consumption as advertised
I am using this in a battery-powered project, and the sleep current is genuinely low. It has extended my device's battery life significantly compared to passive infrared sensors.
Anonymous
Mar 11, 2026
Rating: 5/5
Best 24G sensor in this price range
I have tested multiple brands, and the Hi-Link LD2410S offers the best balance of performance and cost. The ability to filter out static objects while detecting humans is impressive.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for smart home automation
This sensor is incredibly sensitive and detects even subtle breathing movements. I integrated it into my bedroom lighting system, and it works flawlessly without false triggers from outside the room.
Anonymous
Mar 01, 2026
Rating: 4/5
Compact and easy to solder
The module is very small, which is great for tight enclosures. The pinout is standard, making it easy to interface with ESP32 or Arduino boards. Documentation could be slightly more detailed.
Q: Can the detection distance be limited to avoid triggering from the hallway?
A: Absolutely. You can configure the maximum detection distance and gating zones via serial commands to restrict the sensing area to specific ranges.
Q: Is there a library available for ESPHome integration?
A: Yes, this sensor is natively supported in ESPHome. You can find the component documentation under the 'ld2410' section in the official ESPHome guides.
Q: What voltage level does the UART interface use?
A: The UART interface operates at 3.3V TTL logic levels. Please ensure your microcontroller is 3.3V compatible or use a level shifter if connecting to a 5V system.
Q: Does this module come with an antenna?
A: Yes, the module includes a built-in PCB antenna. No external antenna connection is required or available for this specific model.
Q: Can this sensor detect a person sitting completely still?
A: Yes, the LD2410S uses mmWave radar technology capable of detecting micro-movements such as chest expansion from breathing, allowing it to identify stationary human presence.
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