2 layers42 × 67 mm
2 layers39.8 × 56.5 mm
Devboard
ItsStitchy/SunPi2040This is my custom development board powered by the RP2040 chip.
- Size
- 39.8 × 56.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 55
- Pads
- 197
- Tracks, vias
- 473, 52
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 29 May 2026
- Updated
- 26 Jun 2026
Overview
Devboard is an open-source printed circuit board by ItsStitchy, from the ItsStitchy/SunPi2040 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 39.8 × 56.5 mm with 38 parts on 55 nets, routed with 473 tracks and 52 vias.
It is built around the RP2040 and W25Q128JVSIQ. Its parts include 17 capacitors, 8 resistors, 4 connectors, 3 ICs and 1 diode. It belongs with the microcontroller boards boards and the RP2040 boards of this library.
Main components
2
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
README
README.mdSunPi2040 ☀️
This is my custom development board powered by the RP2040 chip.
Instead of just cheating and throwing a pre-made Raspberry Pi Pico or a Seeed XIAO onto a blank board, I wanted to learn how to route the actual raw microcontroller silicon entirely from scratch.
It's built for my Hack Club Macondo hardware project!
🚀 What's on it?
- RP2040 Microcontroller:
- LED There's one LED that works as a status light
- 16MB Flash Memory: (Winbond W25Q128) so I have plenty of space to flash scripts.
- USB-C Port: For power and data, because Micro-USB belongs in the trash.
- AMS1117-3.3V: To drop the USB power down safely so the chip doesn't explode.
- Pin Headers: Two rows of 20-pin headers so I can actually plug this into a breadboard.
The PCB was designed using KiCAD, and I went from never even touching hardware design to creating this devboard. Along the way, I struggled with lots of issues like DRC errors and terrible routing where I met a lot of dead ends. I created this project in order to learn how to work with KiCAD and hardware design, so that I can work on another project which is a game console-style project. I found PCB easter eggs quite amusing, and so I decided to include a bunch of PCB easter eggs at the back.
Pictures of the Devboard:
Open source, feel free to check out my schematics or tell me where my routing looks messy.
Attached are the images of the schematic and the PCB
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8, C9, C11, C12, C17 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C13, C14 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R5, R6 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | 33pF | Capacitor_SMD:C_0603_1608Metric | C15, C16 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | Conn_01x20_Pin | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J2, J4 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 12 MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C10 |
| 1 | 330 | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | LED | LED_SMD:LED_1206_3216Metric_ReverseMount_Hole1.8x2.4mm | D1 |
| 1 | LOGO | Art:snoopy_art | G*** |
| 1 | LOGO | Art:sun_art_invert | G*** |
| 1 | LOGO | Art:redbaron_art | G*** |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U3 |
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Questions
How big is the Devboard PCB?
It measures 39.8 × 56.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Devboard use?
38 parts, built around the RP2040 and W25Q128JVSIQ. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Devboard KiCad files?
From the ItsStitchy/SunPi2040 repository on GitHub, at the commit this page was made from: the board is sunpikicad/devboard.kicad_pcb and its schematic sunpikicad/devboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Devboard design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).