Datum
About the Datum PCB
Datum is an open source PCB design by hermatician, published on GitHub. It is a 2-layer board measuring 109 × 86.9 mm, with 19 components from 3 distinct parts.
Other key parts include the ProMicro-kbd. By type, the board carries 17 switches and 1 IC.
It belongs with the keyboards and iot & wireless designs in this gallery.
From the project
A 34-key wireless split keyboard. Fixed, trusted, everything measured from here.
Half of a Sweep2 with a reversible micro-controller footprint.
Main components on the Datum
Datum bill of materials (BOM)
19 components, 3 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ProMicro-kbd | ProMicro_jumpers_facedown | U1 |
| 1 | SW_Push | Tactile-Switch_SMT | RSW2 |
| 17 | SW_Push | SW_PG1350_rev_DPB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +9 |
Datum design files
The KiCad project lives in the hermatician/datum repository on GitHub; these links point at the commit this page was built from.
- Layoutpcb/datum.kicad_pcb
- Schematicpcb/datum.kicad_sch
Datum: common questions
How big is the Datum PCB?
The Datum measures 109 × 86.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Datum?
19 components, from 3 distinct parts. The full bill of materials is listed on this page.
Where can I download the Datum design files?
From the hermatician/datum repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Datum design in my own project?
The repository has no license, so all rights stay with hermatician. Use it as a reference, and ask the author before reusing the design.
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