HardLabs

Keyboard

BennetLeff·temper·power_pcb_dataset/corpus/piantor_right/keyboard_pcb.kicad_pcb

Keyboard PCB layout, top view — open source RP2040/RP2350 board by BennetLeff
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About the Keyboard PCB

Keyboard is an open source RP2040/RP2350 PCB design by BennetLeff, published on GitHub under the Custom license license. It is a 2-layer board measuring 138.8 × 89.9 mm, with 29 components from 7 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 21 relays, 2 resistors, 1 IC and 1 connector.

It belongs with the keyboards designs in this gallery.

From the project

a breville control freak ++

Temper is a consumer induction cooker built around three pillars: an ESP32-S3 firmware with an 8-state transition-table machine handling real-time power control and hardware-latched protection circuits; a KiCad PCB design optimized through a custom CP-SAT-based signal-integrity and thermal-aware placer pipeline; and a Python/Rust placer toolchain (CP-SAT solver, geometry/DRC/DSN/IPC crates, workflow DAG) that automates layout and checks placement against IPC standards. Protection — over-current, over-voltage, thermal shutdown, UVLO — is designed to be hardware-latched with firmware monitoring.

Keyboard, from the project README
From the project README

Main components on the Keyboard

Pico

Keyboard bill of materials (BOM)

29 components, 7 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Pico
U2
1
TRRS
J1
21
KEYSW
K00, K01, K02, K03, K04, K05, K10, K11 +13
2
MountingHole
MB1, MB2
2
MountingHole
MB3, MB4
1
5k6
R1
1
10k
R2

Keyboard design files

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

Keyboard: common questions

What microcontroller does the Keyboard use?

The Keyboard is built around the Pico, from the RP2040/RP2350 family.

How big is the Keyboard PCB?

The Keyboard measures 138.8 × 89.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard?

29 components, from 7 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 Keyboard design files?

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

Can I use the Keyboard design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Keyboard 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.

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