4 layers58.4 × 22.9 mm
Quickfeather board
QuickLogic-Corp/quick-feather-dev-board
100% open source dev kit for EOS S3 MCU+eFPGA SoC supported by fully open source SDK and FPGA Toolchain
101 parts66CC-BY-SA-4.0
2 layers18.5 × 5 mm
BatterySwitcher
Supermanuu/BatterySwitcher1Bettery switching PCB for wireless Pro-micro based Sofle keyboards
- Size
- 18.5 × 5 mm
- Copper layers
- 2
- Thickness
- 0.89 mm
- Parts
- 5
- Nets
- 4
- Pads
- 9
- Tracks, vias
- 12, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 19 May 2024
- Updated
- 30 Aug 2024
Overview
BatterySwitcher is an open-source printed circuit board by Supermanuu, from the Supermanuu/BatterySwitcher repository on GitHub, published under the MIT licence. It is a 2-layer board of 18.5 × 5 mm with 5 parts on 4 nets, routed with 12 tracks and 0 vias.
It is built around the MBR0520LT1G. Its parts include 3 connectors, 1 diode and 1 switch. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdSofle Battery Switcher
We are triying to make a battery switch for the Sofle Keyboard, or properly said, the nRFMicro or Pro Micro compatible board used by the Sofle Keyboard.
Our goal is to have a PCB that could short and open the baterry supply via a switch, keeping as low profile as possible and doing it as integrated as possible. Also, the device should change the battery in any of the positions, because the nRFMicro has a battery charge monitor.
Setup
In order to use this repo you should add a KICAD_3RD_PARTY variable with ${KIPRJMOD}/3rdparty/ value. If you had installed Kicad for all users, the variable shall be a system variable. Otherwise it can be a user variable.
Also, to commit the messages we use https://github.com/marketplace/actions/github-actions-create-tag, so your commit messages need to follow a certain format. In order to do so, you need to install some git hooks. You can do that by running the following command:
./scripts/setup-hooks.shUsed plugins
- For download parts from Component Search Engine: Import-LIB-KiCad-Plugin
Documentation
See the documentation.
Releases
See Github releases.
Each release has:
- User guide in
user-guide.html, with a lot of information to build the PCB. - iBOM in
ibom.html, with all the PCB parts. - Another BOM in
out-of-bom.html, with parts not used by the PCB, but needed in some cases. - Schematic in
schematic.pdf, with the diagram of the PCB. - PCB images:
- top view in
top.png. - bottom view in
bottom.png.
- top view in
Another attach has:
- Gerber files and drill files in
manufacturing.zip - 3D model in
3D.step
Generate release
To generate a release you will need to create a new release/* branch and make a PR from that branch to main. In that scenario, when the PR is closed a job will be launched. That job will generate a tag and a release with all the change information from the previous tag until now, using the commit contents as specified in https://github.com/marketplace/actions/github-tag.
Release changelog management
In order to auto-generate the changelog, the commits shall use this rules:
| Keyword | Example | Increases |
|---|---|---|
fix(something) | fix(pencil): stop graphite breaking when too much pressure applied | Patch |
feat(something) | feat(pencil): add 'graphiteWidth' option | Minor |
perf(something) | perf(pencil): remove graphiteWidth option | Major |
Parts
5| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | M22-2510146 | Samacsys:HDRV1W50P0X200_1X1_200X200X525P | J2, J3 |
| 1 | 53047-0210 | Samacsys:530470210 | J1 |
| 1 | MBR0520LT1G | Samacsys:SOD3716X135N | D1 |
| 1 | SS12D00G3 | Samacsys:SS12D00G3 | S1 |
Questions
How big is the BatterySwitcher PCB?
It measures 18.5 × 5 mm and has 2 copper layers, 0.89 mm thick.
What parts does the BatterySwitcher use?
5 parts, built around the MBR0520LT1G. 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 BatterySwitcher KiCad files?
From the Supermanuu/BatterySwitcher repository on GitHub, at the commit this page was made from: the board is BatterySwitcher.kicad_pcb and its schematic BatterySwitcher.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BatterySwitcher 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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