Human Presence Microwave Motion Sensor 5.8 GHz Radar Module
Human Presence Microwave Motion Sensor 5.8 GHz Radar Module
This 5.8 GHz microwave motion sensor uses Doppler radar to detect movement and even stationary human presence through non-metallic obstacles like walls or furniture. It's more sensitive than PIR sensors and works well for occupancy detection, automated lighting, and security systems. The module outputs a voltage signal upon detecting motion, making it easy to interface with microcontrollers.
Key Specifications
| Specification | Value |
|---|---|
| Operating frequency | 5.8 GHz |
| Detection range | Up to 7 meters (adjustable) |
| Input voltage | 4–28 VDC (typically 5V) |
| Output signal | 3.3V TTL logic level (high on motion) |
| Penetration | Non-metallic materials (wood, plastic, glass) |
| Dimensions | 28.5mm × 17.8mm |
What You Can Build With This
- Touchless light switch that activates when you enter a room
- Occupancy-based energy‑saving systems for home or office
- Hidden security sensor to detect intruders through walls
- Automatic door opener or garage presence detector
Compatibility
Works with any microcontroller that can read a digital input, including Arduino, ESP8266, ESP32, Raspberry Pi (with level shifting for 5V logic). The module has a 3.3V regulator, so it can be powered directly from 5V or a battery within the wide input range. Pair it with a relay module for controlling mains appliances.
Wiring Notes
Connect VIN to 5V (or up to 28V), GND to ground, and OUT to a digital input pin. The output goes HIGH for a few seconds when motion is detected; keep the antenna area clear of metal for best range. Add a 10kΩ pull‑down resistor if using with a sensitive MCU input.
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 Uno?
Yes, the sensor outputs a 3.3V signal which is safely read by Arduino's 5V logic pins. Connect VIN to 5V, GND to GND, and OUT to a digital pin (e.g., pin 2).
Can it detect motion through walls?
Yes, it can detect human movement through non‑metallic barriers like drywall, wood, or glass, though the range may reduce slightly.
Does this sensor detect stationary people?
Unlike basic PIR sensors, this module can detect stationary human presence due to the Doppler effect from minute movements like breathing, making it suitable for occupancy sensing.
📦 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