DFRobot Fermion C4002 mmWave Human Presence Sensor - 24GHz FMCW Radar, Static & Motion Detection (10m)
The DFRobot Fermion C4002 is a 24GHz FMCW mmWave radar sensor module designed for true human presence detection, capable of sensing static, moving, and micro-movements like breathing. It features a UART interface and configurable GPIO outputs for seamless integration with ESP32, Arduino, Raspberry Pi, and Home Assistant via ESPHome for advanced smart automation and occupancy-based control systems.
Features
- True 24GHz FMCW radar detects static presence, motion, and micro-movements (e.g., breathing).
- Wide 120° × 120° detection angle with a configurable range up to 11 meters for motion and 10 meters for static presence.
- UART serial interface and programmable GPIO outputs for direct connection to ESP32, Arduino, and Raspberry Pi.
- Advanced adaptive filtering algorithm minimizes false triggers from pets, curtains, and ambient environmental noise.
- Operates from a 3.6V to 5.5V DC supply with a wide operating temperature range of -20°C to +85°C.
Out of stock
The DFRobot Fermion C4002 utilizes 24GHz Frequency Modulated Continuous Wave (FMCW) radar technology to penetrate common materials and detect human presence with high reliability, even when the target is completely stationary. Unlike passive infrared (PIR) sensors, it senses micro-movements associated with breathing and subtle shifts in posture, enabling accurate occupancy detection for lighting, HVAC, and security automation in residential and commercial settings.
Its integrated digital signal processor runs a sophisticated adaptive filtering algorithm that distinguishes human signatures from other moving objects, significantly reducing false alarms. The module outputs processed detection data via a simple UART protocol, allowing for easy configuration of sensitivity, detection zones, and hold times through dedicated ESPHome components or custom firmware for ESP32, Arduino, and Raspberry Pi platforms.
Additional Information
| Weight | 0.001 kg |
|---|---|
| Dimensions | 2.6 × 2.2 cm |
