2 layers147.4 × 87.7 mm
Chococorne
davidphilipbarr/testing-boards
This is the main Choc v1 board we all know and love.
69 parts10
2 layers116.1 × 107.4 mm
This is the main Choc v1 board we all know and love.
- Size
- 116.1 × 107.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 24
- Pads
- 205
- Tracks, vias
- 483, 17
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 3 Mar 2022
- Updated
- 28 Apr 2024
Overview
Demeter is an open-source printed circuit board by davidphilipbarr, from the davidphilipbarr/testing-boards repository on GitHub. It is a 2-layer board of 116.1 × 107.4 mm with 24 parts on 24 nets, routed with 483 tracks and 17 vias.
Its parts include 19 switches and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
Sweep v2.2-jst/README.mdSweep2
This is the main Choc v1 board we all know and love.
Ordering The PCB
To order the PCB the following settings are recommended1,2:
| Detail | Value |
|---|---|
| Gerber file | sweepv2.X_gerber.zip |
| Base material | FR-4 |
| Layers | 2 |
| Dimension | 216.9mm x 86.9mm |
| Different design | 2 |
| Delivery format | Panel by customer |
| PCB thickness | 1.6mm |
| PCB color | (Personal preference) |
| Silkscreen | (Personal preference) |
| Surface finish | (Personal preference) |
| Outer copper weight | 1oz |
| Gold Fingers | No |
| Confirm production file | No |
| Castellated holes | No |
| Remove order number | Yes |
1: Settings are for JLCPCB, but could work for other manufacturers.
2: Settings are taken from Kyek's video guide.
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | SW_Push | Kailh:SW_PG1350_rev_DPB2.2 | SW2, SW3, SW4, SW5, SW6, SW8, SW10, SW11, SW12, SW14, SW15, SW16, SW17, SW18, SW20, SW20 +1 |
| 2 | MountingHole_Pad | kbd:1pin_conn_min | Bat+1, BatGND1 |
| 1 | ProMicro-kbd | kbd:ProMicroSimpleJumperDPBnn2 | U1 |
| 1 | SW_Push | kbd:ResetSW | RSW1 |
| 1 | SW_Push | Kailh:SW_PG1350_15_reversible_b2V2 | SW21 |
| 1 | SW_SPDT | Kailh:SPDT_C128955 | SW_POWER1 |
| 1 | SW_SPDT | Kailh:SPDT_C128955r | SW2 |
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Questions
How big is the Demeter PCB?
It measures 116.1 × 107.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Demeter use?
24 parts. 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 Demeter KiCad files?
From the davidphilipbarr/testing-boards repository on GitHub, at the commit this page was made from: the board is demeter36/demeter.kicad_pcb and its schematic Sweep mid/sweep-mid.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Demeter design in my own project?
Its repository states no licence, so its author keeps all rights: ask davidphilipbarr before reusing the design.