2 layers72.4 × 42.4 mm
Work
Heartland-Data/esp32-mintia-sensor-kit
本リポジトリは、MINTIAケースにESP32と各種センサを組み込む試作用ファームウェアの参考実装です。
71 parts1Apache-2.0
2 layers77 × 37 mm
Peripheral unit
kzoropoulos/Fall_Detection_System2A low-power, privacy-friendly elderly fall detection system using 60GHz mmWave radar, PIR sensors, and Zigbee. It features independent room sensors and a resilient central hub for real-time emergency alerts.
- Size
- 77 × 37 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 61
- Pads
- 119
- Tracks, vias
- 238, 6
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 7 Jul 2026
- Updated
- 11 Sep 2026
Overview
Peripheral unit is an open-source printed circuit board by kzoropoulos, from the kzoropoulos/Fall_Detection_System repository on GitHub. It is a 2-layer board of 77 × 37 mm with 13 parts on 61 nets, routed with 238 tracks and 6 vias.
It is built around the MDBT50Q-P1MV2, XM125 and EKMB1101111. Its parts include 4 ICs, 4 connectors, 2 resistors, 1 capacitor and 1 switch. It belongs with the nRF52 and nRF5x boards of this library.
Main components
3
MDBT50Q-P1MV2
SMD-61PEncryption function、Mesh networking SMD-61P Bluetooth Modules ROHSRAYTACBluetooth Modules
XM125
SMD,18.6x15mm-40℃~+85℃ 1.71V~1.89V、2.97V~3.45V Radar Radar Sensor SMD,18.6x15mm RF Misc ICs and Modules ROHSAcconeerRF Misc ICs And Modules
EKMB1101111
--20℃~+60℃ 2.3V~4V - Ambient Light Sensors ROHSPanasonicAmbient Light Sensors
README
README.mdFall Detection System
Abstract
A comprehensive fall detection system designed for elderly support. It utilizes millimeter-wave (mmWave) radar technology for continuous, contactless tracking of position, with an emphasis on low power consumption and privacy preservation.
System Architecture
The system is divided into two primary subsystems:
- Sensor Nodes: Autonomous ceiling-mounted units. They integrate a mmWave radar for point cloud processing, a PIR sensor for hardware wake-up, and a low-power microcontroller. Powered by Lithium Thionyl Chloride (Li-SOCl2) batteries.
- Central Hub: Data collection and processing unit. It operates as a Zigbee Coordinator, verifies fall events, and routes emergency notifications via Wi-Fi. Supported by an uninterruptible power supply system (Backup battery).
Repository Structure
This repository is organized into the following directories:
/hardware: Schematic diagrams, Printed Circuit Board (PCB) design files, and Bill of Materials (BOM) for the sensors and the central hub./firmware: Microcontroller source code, detection algorithms, power management routines, and communication stacks (Zigbee/Wi-Fi)./docs: Detailed documentation, system specifications, and user manuals.
License
Due to the mixed nature of the project, a dual-licensing model is applied:
- Source code and software (within the
/firmwaredirectory) are distributed under the Apache License 2.0. - Hardware design files (within the
/hardwaredirectory) are distributed under the CERN Open Hardware Licence Version 2 - Permissive (CERN-OHL-P).
For further details, refer to the respective LICENSE files within the individual directories.
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100kΩ | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 1 | 3.6V | Connector_JST:JST_XA_B02B-XASK-1_1x02_P2.50mm_Vertical | BT1 |
| 1 | 470μF | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D | C1 |
| 1 | Conn_01x06 | Connector_JST:JST_XA_B06B-XASK-1_1x06_P2.50mm_Vertical | J4 |
| 1 | Conn_01x09 | Connector_JST:JST_XA_B09B-XASK-1_1x09_P2.50mm_Vertical | J3 |
| 1 | EKMB1101111 | FDS_library:EKMB 111001111 | J2 |
| 1 | MDBT50Q-P1M | RF_Module:Raytac_MDBT50Q | U1 |
| 1 | SW_SPST | Button_Switch_SMD:SW_SPST_PTS810 | SW1 |
| 1 | TPS22860DBVR | FDS_library:DBV0006A_L | U2 |
| 1 | TPS7A0218PDBVR | FDS_library:SOT23_DBV_TEX | U4 |
| 1 | TPS7A0233PDBVR | FDS_library:SOT23_DBV_TEX | U3 |
| 1 | XM125 | FDS_library:XM125 | J1 |
Questions
How big is the Peripheral unit PCB?
It measures 77 × 37 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Peripheral unit use?
13 parts, built around the MDBT50Q-P1MV2, XM125 and EKMB1101111. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Peripheral unit KiCad files?
From the kzoropoulos/Fall_Detection_System repository on GitHub, at the commit this page was made from: the board is hardware/Peripheral_Unit/peripheral-unit.kicad_pcb and its schematic hardware/Central_Unit/central-unit-hub.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Peripheral unit design in my own project?
Its repository states no licence, so its author keeps all rights: ask kzoropoulos before reusing the design.
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