EDC36

penk·EDC36·kicad/EDC36-reversible.kicad_pcb

About the EDC36 PCB

EDC36 is an open source RP2040/RP2350 PCB design by penk, published on GitHub under the MIT license. It is a 2-layer board measuring 113 × 72.6 mm, with 38 components from 4 distinct parts.

Its main chip is the RP2040_Zero, from the RP2040/RP2350 family. By type, the board carries 18 switches, 18 diodes, 1 IC and 1 connector.

It belongs with the keyboards designs in this gallery.

From the project

Minimalist 36-Key Split Keyboard (Reversible PCB)

The EDC36 is a split keyboard designed with simplicity and portability in mind.

Quantity | Item --- | --- 1 | RP2040-Zero (left half) 1 | RP2040-Tiny (right half) 2 | EDC36 PCB 36 | Choc v1 (PG1350) switches and keycaps 36 | 1N4148SOD-123 diodes 2 | Audio jack 4-poles (TRRS) 2 | EDC36 case & plate 10 | M2×3 heat-set threaded inserts 10 | M2×5 countersunk screws

EDC36, from the project README — From the project README

Main components on the EDC36

RP2040_Zero

EDC36 bill of materials (BOM)

38 components, 4 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	RP2040_Zero	RP2040_Zero	U1
1	AudioJack4	CON_MJ-4PP-9_Reversible	J1
18	Keyswitch	SW_choc_Reversible_1u	S1, S2, S3, S4, S5, S6, S7, S8 +10
18	C2972760 Diode	Diode_SOD-123	D1, D2, D3, D4, D5, D6, D7, D8 +10

EDC36 design files

The KiCad project lives in the penk/EDC36 repository on GitHub; these links point at the commit this page was built from.

Layoutkicad/EDC36-reversible.kicad_pcb
Schematickicad/EDC36-reversible.kicad_sch
BOMproduction/BOM.csv

EDC36: common questions

What microcontroller does the EDC36 use?

The EDC36 is built around the RP2040_Zero, from the RP2040/RP2350 family.

How big is the EDC36 PCB?

The EDC36 measures 113 × 72.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the EDC36?

38 components, from 4 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the EDC36 design files?

From the penk/EDC36 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the EDC36 design in my own project?

Yes, under the terms of its MIT license, which penk chose for the repository.

Can I test firmware for the EDC36 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.