2 layers252.9 × 77.6 mm
2 layers141 × 118 mm
Badfinger
Sandalmoth/keyboards55- Size
- 141 × 118 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 44
- Pads
- 298
- Tracks, vias
- 481, 21
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 23 Feb 2023
- Updated
- 15 Jul 2024
Overview
Badfinger is an open-source printed circuit board by Sandalmoth, from the Sandalmoth/keyboards repository on GitHub. It is a 2-layer board of 141 × 118 mm with 58 parts on 44 nets, routed with 481 tracks and 21 vias.
It is built around the R-78S3.3-0.1. Its parts include 26 diodes, 26 switches, 2 ICs, 1 capacitor and 1 inductor. It belongs with the SAM D and SAM boards of this library.
Main components
1README
README.mdkeyboards
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 26 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +10 |
| 26 | SW_SPST | keyswitches:SW_PG1350_reversible | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +10 |
| 2 | SeeeduinoXIAO | seeduino_xiao:qtpy | U1, U2 |
| 1 | 1uH choke | Inductor_THT:L_Axial_L9.5mm_D4.0mm_P15.24mm_Horizontal_Fastron_SMCC | L1 |
| 1 | 2.2uF 16V MLCC | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | Battery | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1 |
| 1 | R-78S3.3-0.1 | R-78S3.3-0.1:CONV_R-78S3.3-0.1 | PS1 |
Questions
How big is the Badfinger PCB?
It measures 141 × 118 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Badfinger use?
58 parts, built around the R-78S3.3-0.1. 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 Badfinger KiCad files?
From the Sandalmoth/keyboards repository on GitHub, at the commit this page was made from: the board is badfinger/pcb/badfinger/badfinger.kicad_pcb and its schematic badfinger/pcb/badfinger/badfinger.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Badfinger design in my own project?
Its repository states no licence, so its author keeps all rights: ask Sandalmoth before reusing the design.
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