Multifunctional fn keyboard

felix-myrie·multifunctional-fn-keyboard·design/design.kicad_pcb

About the Multifunctional fn keyboard PCB

Multifunctional fn keyboard is an open source RP2040/RP2350 PCB design by felix-myrie, published on GitHub under the MIT license. It is a 2-layer board measuring 176.5 × 83.3 mm, with 24 components from 9 distinct parts.

Its main chip is the C41407547, from the RP2040/RP2350 family. Other key parts include the LIS2DW12. By type, the board carries 15 switches, 3 resistors, 2 ICs, 2 capacitors, 1 connector and 1 diode.

It belongs with the keyboards, displays & leds and sensors designs in this gallery.

From the project

A function keyboard that is also a game controller

Schematic diagram showing the wiring of pins on the Pi Pico.

Multifunctional fn keyboard, from the project README — From the project README

Main components on the Multifunctional fn keyboard

C41407547 LIS2DW12

Multifunctional fn keyboard bill of materials (BOM)

24 components, 9 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	C41407547 RaspberryPi_Pico	RaspberryPi_Pico_Common_Unspecified	U1
1	LIS2DW12	LGA12R50P4X4_200X200X70	U2
1	CONN_01X08_SOCKET Conn_01x08_Socket	PinSocket_1x08_P2.54mm_Vertical	J2
2	C720477 Tactile Button, 160gf XUNPU	SW_TS-1088-AR02016	S1, S2
13	SW_Push	SW_SPST_Omron_B3F-40xx	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +5
1	KT-0603R	LED_0603_1608Metric	D1
2	100NF 100nF	C_0402_1005Metric	C1, C2
1	47Ω	R_0201_0603Metric	R1
2	4.7K 4.7k	R_0603_1608Metric	R2, R3

Multifunctional fn keyboard design files

The KiCad project lives in the felix-myrie/multifunctional-fn-keyboard repository on GitHub; these links point at the commit this page was built from.

Multifunctional fn keyboard: common questions

What microcontroller does the Multifunctional fn keyboard use?

The Multifunctional fn keyboard is built around the C41407547, from the RP2040/RP2350 family.

How big is the Multifunctional fn keyboard PCB?

The Multifunctional fn keyboard measures 176.5 × 83.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Multifunctional fn keyboard?

24 components, from 9 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 Multifunctional fn keyboard design files?

From the felix-myrie/multifunctional-fn-keyboard 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 Multifunctional fn keyboard design in my own project?

Yes, under the terms of its MIT license, which felix-myrie chose for the repository.

Can I test firmware for the Multifunctional fn 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.