Granola plateau

michaelswitzer·granola-plateau·PCB/granola-plateau.kicad_pcb

About the Granola plateau PCB

Granola plateau is an open source RP2040/RP2350 PCB design by michaelswitzer, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 248 × 146 mm, with 55 components from 18 distinct parts.

Its main chip is the C2040, from the RP2040/RP2350 family. Other key parts include the C97521, C5250994 and C5250992. By type, the board carries 22 switches, 17 capacitors, 8 resistors, 4 ICs, 2 diodes and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

Granola Plateau: a fighting game controller for platform fighters

The Plateau is a button box style arcade controller by Granola Arcade.

You can buy the Plateau at https://granola.games

The .step file for the case is optimized for FDM 3D printers. I recommend PLA with at least 15% infill but you can use any material you wish. It should already be aligned in the correct orientation.

The keycap files are also included, for use with Kailh Choc V2 stems (MX style). You may need to adjust the x-y hole and contour compensation values in your slicer for proper fitment.

Granola plateau, from the project README — From the project README

Main components on the Granola plateau

C97521 C5250994 C5250992 C2040

Granola plateau bill of materials (BOM)

55 components, 18 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	C97521 W25Q128JVS	SOIC-8_5.23x5.23mm_P1.27mm	U1
1	C5250994 USBLC6-2SC6	SOT-23-6	U2
1	C5250992 AMS1117-3.3_SOT223	SOT-223-3_TabPin2	U3
1	C2040 RP2040	RP2040-QFN-56	U4
1	C9002 ABLS-12.000MHZ-B4-T	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	C456013 USB_C_Receptacle	Shou Han USBC 24P C456013	J1
1	C318884 TS-1187A-B-A-B	SW_Push_1P1T_XKB_TS-1187A	SW1
21	C5333465 MX_Switch	SW_Hotswap_Kailh_Choc_V1V2_1.00u_24mm_reversible	SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 +13
2	C8598 Schottky Diode	D_SOD-123	D1, D2
10	C1525 100n	C_0402_1005Metric	C1, C7, C8, C10, C12, C13, C14, C15 +2
3	C15525 10u	C_0402_1005Metric	C2, C5, C6
2	C147436 27p	C_0402_1005Metric	C3, C4
2	C52923 1u	C_0402_1005Metric	C9, C11
2	C105637 1k	R_0402_1005Metric	R1, R6
2	C25744 5.1k	R_0402_1005Metric	R2, R3
1	C23189 5.6k	R_0603_1608Metric	R4
1	C25804 10k	R_0603_1608Metric	R5
2	C25190 27	R_0603_1608Metric	R7, R8

Granola plateau design files

The KiCad project lives in the michaelswitzer/granola-plateau repository on GitHub; these links point at the commit this page was built from.

Granola plateau: common questions

What microcontroller does the Granola plateau use?

The Granola plateau is built around the C2040, from the RP2040/RP2350 family.

How big is the Granola plateau PCB?

The Granola plateau measures 248 × 146 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Granola plateau?

55 components, from 18 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 Granola plateau design files?

From the michaelswitzer/granola-plateau 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 Granola plateau design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Granola plateau 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.