4 layers320 × 378.2 mm
2 layers65 × 56 mm
Pi Hat
FYNCH-BIO/hardware12eVOLVER Hardware (PCB, 3D printed parts)
- Size
- 65 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 41
- Pads
- 131
- Tracks, vias
- 217, 25
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 1 Jun 2019
- Updated
- 3 Nov 2026
Overview
Pi Hat is an open-source printed circuit board by FYNCH-BIO, from the FYNCH-BIO/hardware repository on GitHub. It is a 2-layer board of 65 × 56 mm with 28 parts on 41 nets, routed with 217 tracks and 25 vias.
It is built around the MAX481EPA+ and BSS123. Its parts include 8 resistors, 7 connectors, 3 capacitors, 3 transistors and 2 diodes.
Main components
2README
README.mdeVOLVER Hardware Components/CAD
This repository contains all hardware CAD files for the eVOLVER continuous culture platform.
For more information on the platform, check out our Nature Biotech publication.
For information on building, troubleshooting, and running experiments on the platform, reach out to us on the eVOLVER forum and read the wiki.
Software Repositories:
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10k | project_footprints:R_805_HS | R4, R5, R10, R12 |
| 4 | 3mm_Mounting_Hole | project_footprints:MH_plated | H1, H2, H3, H4 |
| 3 | 1uF | project_footprints:C_0805_HS | C1, C2, C3 |
| 3 | Header_8Pin | project_footprints:8Pin_Header | J3, J4, J5 |
| 2 | 2N7002 | project_footprints:2N7002 | Q3, Q4 |
| 2 | 510 | project_footprints:R_805_HS | R1, R2 |
| 2 | DNP | project_footprints:R_805_HS | R3, R6 |
| 2 | LED | project_footprints:LED_0603 | D1, D2 |
| 1 | 2Screw_Term | project_footprints:277-1667-ND | J7 |
| 1 | BSS123 | project_footprints:2N7002 | Q5 |
| 1 | Header_10Pin | project_footprints:10Pin_Header | J2 |
| 1 | MAX481 | project_footprints:SO-8 | U1 |
| 1 | RJ14 | components:609-5080-ND | J6 |
| 1 | raspberrypi_hat:OX40HAT | project_footprints:Connector_PinSocket_2.54mm | J1 |
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Questions
How big is the Pi Hat PCB?
It measures 65 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pi Hat use?
28 parts, built around the MAX481EPA+ and BSS123. 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 Pi Hat KiCad files?
From the FYNCH-BIO/hardware repository on GitHub, at the commit this page was made from: the board is Vial Platform/Pi-Hat/Pi-Hat.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pi Hat design in my own project?
Its repository states no licence, so its author keeps all rights: ask FYNCH-BIO before reusing the design.