
Ferris
pierrechevalier83/ferris
A low profile split keyboard designed to satisfy one single use case elegantly

This is an update to the squatterboard project, meant to resolve issues I have with the original. If you're not familiar with the original, the reason I made this was to make a daughterboard with a "squatter" profile…
Squatterboard2 is an open-source printed circuit board by Croktopus, from the Croktopus/squatterboard2 repository on GitHub, published under the MIT licence. It is a 2-layer board of 44 × 11 mm with 11 parts on 12 nets, routed with 74 tracks and 11 vias.
It is built around the SRV05-4. Its parts include 3 resistors, 2 connectors, 1 capacitor, 1 IC and 1 fuse.

This is an update to the squatterboard project, meant to resolve issues I have with the original. If you're not familiar with the original, the reason I made this was to make a daughterboard with a "squatter" profile than the standard set by the Unified Daughterboard (UDB), since I almost never have room in my cases for a daughterboard with those dimensions.
Electrically, it is compatible with the UDB's pinout, so it can work with any PCB compatible with the UDB. I honestly do not know how it compares for effectiveness because I don't have access to proper testing equipment, and I do know that the routing is not perfectly optimal (I made a couple slight compromises to fit everything a bit tighter and, I'll be honest, to keep the routing clean), but I'm confident that it is good enough (Cunningham's Law inc).
While you are welcome to use this DB as is without any modification, I am not proposing it as an alternative standard, and I encourage you to modify it to fit your needs, because that's why it was made in the first place; as a modification of the UDB concept to fit my needs.
Major changes from the original squatterboard:
Major changes relative to the UDB
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 5.1k | Crokto:R_0603_1608Metric | R1, R2 |
| 1 | 100n | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | 1M | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | Conn_01x04 | Crokto:JST_SH_SM04B-SRSS-TB-Handsoldering | J2 |
| 1 | JLCJLCJLCJLC | Crokto:JLCJLCJLCJLC | H3 |
| 1 | M3 | Crokto:M3_Via_Hole_NC | H1 |
| 1 | M3_Pad | Crokto:M3_Via_Hole | H2 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | USB_C_Receptacle_USB2.0 | Crokto:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
It measures 44 × 11 mm and has 2 copper layers, 1.6 mm thick.
11 parts, built around the SRV05-4. 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.
From the Croktopus/squatterboard2 repository on GitHub, at the commit this page was made from: the board is squatterboard2/squatterboard2.kicad_pcb and its schematic madcatdb/madcatdb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
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).

pierrechevalier83/ferris
A low profile split keyboard designed to satisfy one single use case elegantly

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