Ortho40

twitch0001·ortho40·pcb/ortho40.kicad_pcb

About the Ortho40 PCB

Ortho40 is an open source RP2040/RP2350 PCB design by twitch0001, published on GitHub under the MIT license. It is a 2-layer board measuring 284 × 84 mm, with 129 components from 18 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the XC6206PxxxMR, W25Q128JVS, USBLC6-2SC6 and ST7735S_1.8inch. By type, the board carries 48 LEDs, 48 diodes, 17 capacitors, 7 resistors, 5 ICs and 1 crystal.

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

From the project

40% ortho with a display in the middle

Inspired by ChrisChrisLoLo/keezyboost40 (additional Keys & QMK support)

Ortho40, from the project README — From the project README

Main components on the Ortho40

RP2040 XC6206PxxxMR W25Q128JVS USBLC6-2SC6ST7735S_1.8inch

Ortho40 bill of materials (BOM)

129 components, 18 distinct parts.

Qty	Part	Footprint	Refs
1	RP2040	RP2040-QFN-56	U1
1	XC6206PxxxMR	SOT-23	U2
1	W25Q128JVS	SOIC-8_5.23x5.23mm_P1.27mm	U3
1	USBLC6-2SC6	SOT-23-6	U4
1	ST7735S_1.8inch	DFR0928	U5
1	12MHz	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	USB_C_Receptacle_USB2.0	USB_C_Receptacle_HRO_TYPE-C-31-M-12	J2
1	500mA	Fuse_1206_3216Metric	F1
1	BOOTSEL	SW_Push_SPST_NO_Alps_SKRK	SW1
48	MX-NoLED	MX-1U-NoLED	MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +40
48	D_Small	D_SOD-123	D1, D2, D3, D4, D5, D6, D7, D8 +40
10	100nF	C_0402_1005Metric	C1, C5, C6, C9, C10, C11, C12, C13 +2
4	1uF	C_0402_1005Metric	C2, C3, C4, C8
1	10uF	C_0402_1005Metric	C7
2	22pF	C_0402_1005Metric	C16, C17
3	1k	R_0402_1005Metric	R1, R6, R7
2	27R	R_0402_1005Metric	R2, R3
2	5k1	R_0402_1005Metric	R4, R5

Ortho40 design files

The KiCad project lives in the twitch0001/ortho40 repository on GitHub; these links point at the commit this page was built from.

Layoutpcb/ortho40.kicad_pcb
Schematicpcb/ortho40.kicad_sch

Ortho40: common questions

What microcontroller does the Ortho40 use?

The Ortho40 is built around the RP2040, from the RP2040/RP2350 family.

How big is the Ortho40 PCB?

The Ortho40 measures 284 × 84 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ortho40?

129 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ortho40 design files?

From the twitch0001/ortho40 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Ortho40 design in my own project?

Yes, under the terms of its MIT license, which twitch0001 chose for the repository.

Can I test firmware for the Ortho40 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.