6 layers55 × 95 mm
2 layers15.3 × 24.8 mm
Bme
ayukmr/bmeSurge concussion detector for BME
- Size
- 15.3 × 24.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 64
- Pads
- 131
- Tracks, vias
- 193, 30
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Oct 2026
- Updated
- 3 Nov 2026
Overview
Bme is an open-source printed circuit board by ayukmr, from the ayukmr/bme repository on GitHub, published under the MIT licence. It is a 2-layer board of 15.3 × 24.8 mm with 23 parts on 64 nets, routed with 193 tracks and 30 vias.
It is built around the TP4057. Its parts include 7 capacitors, 3 resistors, 2 ICs and 1 connector.
Main components
1README
README.mdbme
Surge concussion detector PCB for BME.
Schematic
PCB
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | TestPoint | Project:Pad_SMD_1.5x1.5 | TP1, TP2, TP3, TP4, TP6, TP7 |
| 3 | 10 uF | Capacitor_SMD:C_0603_1608Metric | C2, C5, C6 |
| 3 | 100 nF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C4 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 1 | 4.7 uF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 451-00001 | Project:45100001 | ANT1 |
| 1 | 47k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | LOGO | LOGO | G*** |
| 1 | LSM6DSV320XTR | Package_LGA:LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | IC1 |
| 1 | TP4057 | Package_TO_SOT_SMD:TSOT-23-6 | U1 |
| 1 | USB_B_Micro | Project:MICRO-USB-SMD_47346-0001 | J1 |
The 21 most common of 23 parts.
Questions
How big is the Bme PCB?
It measures 15.3 × 24.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bme use?
23 parts, built around the TP4057. 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 Bme KiCad files?
From the ayukmr/bme repository on GitHub, at the commit this page was made from: the board is pcb/bme.kicad_pcb and its schematic pcb/bme.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bme design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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