Bully2040 keyboard

sporkus·bully2040_keyboard·kicad/pcb/bully.kicad_pcb

About the Bully2040 keyboard PCB

Bully2040 keyboard is an open source RP2040/RP2350 PCB design by sporkus, published on GitHub under the WTFPL license. It is a 2-layer board measuring 257.2 × 89.2 mm, with 135 components from 26 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q128JVS and XC6206PXXXMR-REGULATOR_LINEAR. By type, the board carries 57 switches, 47 diodes, 19 capacitors, 5 resistors, 3 ICs and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

Opensource PCB for bully keyboard ------------------------------

This is an opensource pcb made for Bully keyboard.

Bully2040 keyboard, from the project README — From the project README

Main components on the Bully2040 keyboard

W25Q128JVS RP2040 XC6206PXXXMR-REGULATOR_LINEAR

Bully2040 keyboard bill of materials (BOM)

135 components, 26 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	W25Q128JVS	SOIC-8_5.23x5.23mm_P1.27mm	U1
1	RP2040	RP2040-QFN-56	U3
1	XC6206PXXXMR-REGULATOR_LINEAR XC6206PxxxMR-Regulator_Linear	SOT-23	U4
1	12MHZ 12MHz	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	SM04B-SRSS-TB(LF)(SN)	JST-SR-4	J1
5	SW_Push	MX-Alps-Hybrid-1.5U	SW1, SW46, SW48, SW51, SW53
33	SW_Push	MX-Alps-Hybrid-1U	SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 +25
2	SW_Push	MX-Alps-Hybrid-1.75U	SW14, SW25
2	SW_Push	MX-Alps-Hybrid-2.25U	SW26, SW57
9	SW_Push	MX-Alps-Hybrid-1.25U	SW37, SW38, SW39, SW40, SW43, SW44, SW45, SW47 +1
2	SW_Push	MX-Alps-Hybrid-3U-ReversedStabilizers	SW41, SW42
1	SW_Push	MX-Alps-Hybrid-2.25U-ReversedStabilizers	SW49
1	SW_Push	MX-Alps-Hybrid-2.75U-ReversedStabilizers	SW50
1	RotaryEncoder_Switch	RotaryEncoder_EC11	SW54
1	SW_Push	MX-Solderable-1.25U	SW55
2	SKQGADE010	SW_SPST_SKQG_WithoutStem	SW_BOOT1, SW_RST1
45	1N4148W	D_SOD-123	D1, D2, D3, D4, D5, D6, D7, D8 +37
2	LED	LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder	D46, D47
10	100NF 100nF	C_0402_1005Metric	C1, C5, C6, C9, C10, C11, C12, C13 +2
2	22PF 22pF	C_0402_1005Metric	C2, C3

Show 6 more

Qty	Part	Footprint	Refs
4	1UF 1uF	C_0402_1005Metric	C4, C7, C16, C17
1	10UF 10uF	C_0402_1005Metric	C8
2	100N 100n	C_0402_1005Metric	C18, C19
2	1k	R_0402_1005Metric	R1, R7
1	1k	R_0805_2012Metric	R2
2	27R	R_0402_1005Metric	R5, R6

Bully2040 keyboard design files

The KiCad project lives in the sporkus/bully2040_keyboard repository on GitHub; these links point at the commit this page was built from.

Bully2040 keyboard: common questions

What microcontroller does the Bully2040 keyboard use?

The Bully2040 keyboard is built around the RP2040, from the RP2040/RP2350 family.

How big is the Bully2040 keyboard PCB?

The Bully2040 keyboard measures 257.2 × 89.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bully2040 keyboard?

135 components, from 26 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 Bully2040 keyboard design files?

From the sporkus/bully2040_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 Bully2040 keyboard design in my own project?

Yes, under the terms of its WTFPL license, which sporkus chose for the repository.

Can I test firmware for the Bully2040 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.