SFD01 G-NICE | Alldatasheet
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www.nicerf.com SFD01 NiceRF Wireless Technology Co., Ltd. sales@nicerf.com TEL:0755 -1- SFD01 Fall Detection Module Product Specification
www.nicerf.com SFD01 NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com - 2 - Content Note: Revision History Revision Date Comment V1.0 2025-11 First release *Our company reserves the right to change, correct, enhance, or modify the products and this document at any time without prior notice. Users can obtain the latest relevant information before placing an order. The information in this notice supersedes and replaces the information in previous versions. NiceRF Wireless Technology CO.,LTD reserves all rights.
www.nicerf.com SFD01 NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com - 3 - 1. Description The SFD01 is a miniature embedded fall-detection module based on a high-precision 3-axis digital accelerometer. Designed with a minimalist hardware architecture and an open integration ecosystem, the module provides accurate fall-detection algorithm output and enables rapid integration into third-party products such as smart wearables, industrial safety devices, and medical equipment. It is suitable for elderly monitoring, high-risk industrial operations, sports safety, and additional fall-protection scenarios. 2. Features Ultra-Compact & Lightweight Design Form Factor: PCB surface-mount package, enabling direct integration into smart wristbands, ID badges, medical devices, etc. Power Consumption: Ultra-low-power design with a standby current of approximately 10 μA. High-Accuracy Algorithm for Critical Safety Detection 3-Axis Accelerometer: Continuously captures real-time 3D motion data. Powered by NiceRF’s proprietary fall-detection algorithm to accurately identify fall events. Open & Compatible Interface: Multiple status signal output pins to support various application scenarios and system architectures. 3. Applications For B2B Partners Smart Wearable Brands: Add fall detection to smart bands/watches without algorithm development. Industrial Safety Manufacturers: Integrate into safety helmets or smart vests for real-time monitoring of workers performing high-altitude operations. Medical Device Companies: Combine with health-monitoring systems to build a “chronic disease management + fall protection” solution. For End-User Home safety monitoring for seniors living alone (with home alarm system integration). Worker protection in construction, firefighting, or hazardous environments (embedded in protective gear).
www.nicerf.com SFD01 NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com - 4 - 4. Electrical Characteristics Parameters Condition Min. Typ. Max. Unit Power Supply 1.8 3.6 V Working Temperature -40 25 85 ℃ Current consumption Working Current During event detection 1.5 mA Sleep Current Static condition <10 uA 5. Typical Applications 6. Pin definition Pin NO Pin Name I/O Description
1 VCC Power supply positive
2,9 GND Power supply ground
3 RST 0-VCC Reset pin, pull low to reset
4 RXD 0-VCC Module programming pin (RXD)
5 TXD 0-VCC Module programming pin (TXD)
6 DATA1 0-VCC Fall-detection indicator pin
7 TEST 0-VCC -
8 DATA2 0-VCC Fall-static-state indicator pin
10 DATA3 0-VCC High-altitude fall indicator pin
www.nicerf.com SFD01 NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com - 5 - 7. Functional Description The user can determine the module’s current status by reading the logic levels of DATA1, DATA2, and DATA3: DATA1 DATA2 DATA3 Description 0 0 0 No event; normal posture restored 1 0 0 Fall detected; monitoring for post-fall inactivity (approx. 5s) 1 1 0 Fall detected with prolonged inactivity 0 0 1 High-altitude fall detected Note: When a high-altitude fall event is triggered, the DATA3 pin outputs a high level for approximately 100 ms, then automatically returns low. 8. Size(Unit: mm)
www.nicerf.com SFD01 NiceRF Wireless Technology Co., Ltd. Rev 1.0 sales@nicerf.com - 6 - Appendix :SMD Reflow Chart Below reflow profile is recommended for SMT technology: