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Plate

zzeneg·picachoc36·case/plate.kicad_pcb

Plate PCB layout, top view — open source Nordic nRF board by zzeneg
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About the Plate PCB

Plate is an open source Nordic nRF PCB design by zzeneg, published on GitHub under the MIT license. It is a 2-layer board measuring 129 × 93.3 mm, with 45 components from 8 distinct parts.

Its main chip is the xiao-ble, from the Nordic nRF family. By type, the board carries 19 diodes, 18 switches, 5 connectors and 1 IC.

It belongs with the keyboards and iot & wireless designs in this gallery.

From the project

Keyboard with low-profile Choc switches

Low-profile split keyboard with 36 keys using XIAO controllers.

- reversible PCB - 36 soldered ChocV1 keys - wired/wireless versions - top pinky key moved to side - 3D printed case

- XIAO RP 2040 controller - QMK firmware - TRRS or USB-C connection between halves - rotary encoder on one side - one status LED

- XIAO BLE controller - [TODO] ZMK firmware - rotary encoder on both sides (ZMK supports only main side for now) - on/off toggle - battery connectors

Plate, from the project README
From the project README

Main components on the Plate

xiao-ble

Plate bill of materials (BOM)

45 components, 8 distinct parts.

QtyPartRefs
1
xiao-ble
U1
3
Conn_01x02_Female
BATTCONN1, BATTCONN2, BATTCONN3
1
Cutout_TRRS_resersible
J1
1
HRO-TYPE-C-31-M-12
USB1
1
SW_SPDT
BATTSW1
1
RotaryEncoder_Switch
RE1
18
SW_PUSH
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +10
19
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +11

Plate design files

The KiCad project lives in the zzeneg/picachoc36 repository on GitHub; these links point at the commit this page was built from.

Plate: common questions

What microcontroller does the Plate use?

The Plate is built around the xiao-ble, from the Nordic nRF family.

How big is the Plate PCB?

The Plate measures 129 × 93.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Plate?

45 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Plate design files?

From the zzeneg/picachoc36 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Plate design in my own project?

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

Can I test firmware for the Plate without the hardware?

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

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