HLK-LD2410 24GHz Human Presence Radar Sensor Module | Compoden
HLK-LD2410 24GHz mmWave Human Presence Radar Sensor Module
The HLK-LD2410 is a 24GHz mmWave radar sensor module that accurately detects human presence, movement, and stationary status. Ideal for occupancy sensing in smart homes, lighting control, and security systems, it offers a robust alternative to PIR sensors by detecting through non-metallic materials and remaining unaffected by temperature changes.
Key Specifications
| Specification | Value |
|---|---|
| Operating Frequency | 24GHz - 24.25GHz |
| Detection Range | Up to 8m (adjustable) |
| Detection Angle | 100° conical field |
| Communication Interfaces | UART, GPIO, I2C |
| Operating Voltage | 3.3V - 5V DC |
| Current Consumption | ~150mA active |
What You Can Build With This
- Smart occupancy-based lighting control system
- Elderly fall detection and monitoring solution
- Conference room presence detector for booking systems
- Intelligent air conditioner or fan control based on room occupancy
Compatibility
Compatible with 3.3V and 5V microcontrollers including Arduino, ESP32, and Raspberry Pi. Works seamlessly with development boards supporting UART or I2C communication. The module provides both simple binary presence/absence output and detailed serial data including distance and movement status.
Wiring Notes
Connect VCC to 3.3V-5V, GND to common ground, and RX/TX for UART communication. Use an external 3.3V level shifter if interfacing with 5V logic systems, though the module pins are 5V tolerant.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, connect via UART (RX/TX) and use the HLK-LD2410 Arduino library for easy integration and data parsing.
Can it detect through walls?
It can detect through non-metallic materials like drywall or glass, but detection range may be reduced depending on thickness and material.
What is the difference from PIR sensors?
Unlike PIR sensors, the HLK-LD2410 detects stationary human presence and provides precise distance data, while remaining unaffected by ambient temperature changes.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items