2 layers42 × 67 mm
4 layers21 × 51 mm
Starforge Dev Board
HIIACODER/Starforge-Dev-BoardA simple RP2040 Dev Board
- Size
- 21 × 51 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 57
- Pads
- 188
- Tracks, vias
- 613, 48
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 21 Oct 2026
- Updated
- 1 Nov 2026
Overview
Starforge Dev Board is an open-source printed circuit board by HIIACODER, from the HIIACODER/Starforge-Dev-Board repository on GitHub, published under the MIT licence. It is a 4-layer board of 21 × 51 mm with 33 parts on 57 nets, routed with 613 tracks and 48 vias.
It is built around the RP2040 and W25Q128JVSIQ. Its parts include 17 capacitors, 7 resistors, 3 ICs, 3 connectors and 1 switch. 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.mdStarforge-Dev-Board
A simple 4 layer RP2040 Dev Board powered by USB-C, with data and power delivery. Uses 24 GPIO and 4 ADC pins, alongside 1 3.3V and one 5V output. There is also 7 ground pins with 2 debug pins.
My goal with this project was to learn how to route properly and effectively on a PCB including how to manage decoupling caps and general power routing because that is what I struggle with. I also wanted a simple board to use for my projects.
This project should:
- help me develop a base to apply to future projects
- be a simple dev board I can use for other projects
PCB
Here is my PCB! This PCB was designed in KiCAD.
General PCB design images
Schematic:
Top View (3d render):
Bottom View (3d render):
PCB Design:
First Layer:
Second Layer:
Third Layer:
Fourth Layer:
Layer Stackup
The board contains 4 layers. The purpose of all layers listed below.
| Layer | Description |
|---|---|
| 1 | Main routing layer |
| 2 | First ground layer for reference and signal separation |
| 3 | Second ground layer for reference and signal separation |
| 4 | Overflow routing layer |
Flashing Instructions
Here are steps to flash a file to the MCU!
- Hold down the BOOTSEL button (the only button on the board) while plugging the board into your computer via USBC
- The board will show up as a USB mass storage device
- Compile your .uf2 binary file through external methods (C/C++ SDK, MicroPython, CircuitPython, etc)
- Drag your compiled .uf2 file onto the drive. The board should automatically reboot and run the newly uploaded firmware!
BOM
All SMD parts utilize 0402 passives to minimize board surface area. JLCPCB / LCSC part numbers are included below for reference.
| Item | Component / Description | Qty | Designators | Footprint | JLCPCB Part # |
|---|---|---|---|---|---|
| 1 | RP2040 Microcontroller | 1 | U1 | QFN-56_L7.0-W7.0-P0.4 | C2040 |
| 2 | P25Q16SH-UXH-IR (16Mbit Flash) | 1 | U3 | USON8_L3.0-W2.0-P0.5 | C7466821 |
| 3 | MCP1700T-3302E/TT (3.3V LDO) | 1 | U2 | SOT-23 | C39051 |
| 4 | HC-TYPE-C-16P-01A (USB-C) | 1 | J1 | USB_C_Receptacle_16P | C2894897 |
| 5 | Crystal_GND24 (12MHz Crystal) | 1 | Y1 | SMD_4P-L3.2-W2.5 | C9002 |
| 6 | TS-1088 Tactile Switch | 1 | SW1 | SW-SMD_L3.9-W3.0-P4.45 | C720477 |
| 7 | Header Male 2.54mm 1x20 | 2 | J2, J3 | PinHeader_1x20_P2.54mm | C50981 |
| 8 | Header Male 2.54mm 1x3 | 1 | H1 | HDR-TH_3P-P2.54mm | C2937625 |
| 9 | 100nF Capacitor | 11 | C2-C9, C11, C12, C17 | C_0402 | C1525 |
| 10 | 1uF Capacitor | 2 | C1, C10 | C_0402 | C29266 |
| 11 | 10uF Capacitor | 2 | C13, C14 | C_0402 | C15525 |
| 12 | 33pF Load Capacitor | 2 | C15, C16 | C_0402 | C107005 |
| 13 | 5.1k Resistor | 2 | R1, R2 | R_0402 | C25905 |
| 14 | 27Ω Resistor | 2 | R5, R6 | R_0402 | C2909343 |
| 15 | 1k Resistor | 2 | R4, R7 | R_0402 | C11702 |
| 16 | 10k Resistor | 1 | R3 | R_0402 | C25744 |
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100nF | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4, C5, C6, C7, C8, C9, C11, C12, C17 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C13, C14 |
| 2 | 1k | PCM_JLCPCB:R_0402 | R4, R7 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C10 |
| 2 | 27 | PCM_JLCPCB:R_0402 | R5, R6 |
| 2 | 33pF | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 5.1k | PCM_JLCPCB:R_0402 | R1, R2 |
| 2 | Conn_01x20 | lcsc_footprints:C50981_HDR-TH_20P-P2_54-V-M-1 | J2, J3 |
| 1 | 10k | PCM_JLCPCB:R_0402 | R3 |
| 1 | Crystal_GND24 | lcsc_footprints:C9002_CRYSTAL-SMD_4P-L3_2-W2_5-BL | Y1 |
| 1 | Debug | lcsc_footprints:C2937625_HDR-TH_3P-P2_54-V-M_PZ254V-11-03P | H1 |
| 1 | MCP1700x-330xxTT | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | RP2040 | lcsc_footprints:C2040_LQFN-56_L7_0-W7_0-P0_4-EP | U1 |
| 1 | SW_Push | lcsc_footprints:C720477_SW-SMD_L3_9-W3_0-P4_45 | SW1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J1 |
| 1 | W25Q128JVS | lcsc_footprints:C7466821_USON8_L3_0-W2_0-P0_50-BL-EP | U3 |
Questions
How big is the Starforge Dev Board PCB?
It measures 21 × 51 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Starforge Dev Board use?
33 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 Starforge Dev Board KiCad files?
From the HIIACODER/Starforge-Dev-Board repository on GitHub, at the commit this page was made from: the board is PCB/PCB.kicad_pcb and its schematic PCB/PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Starforge Dev Board design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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