4 layers65 × 30 mm
4 layers22.8 × 25.7 mm
Mini RP2040-Devboard
wafleee/Mini-RP2040-DevboardI made a mini devboard that uses the RP2040 as the MCU. It is slightly bigger than the XIAO esp32 s3 but it features 4 extra pins
- Size
- 22.8 × 25.7 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 59
- Pads
- 180
- Tracks, vias
- 761, 113
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 10 Oct 2026
- Updated
- 22 Oct 2026
Overview
Mini RP2040-Devboard is an open-source printed circuit board by wafleee, from the wafleee/Mini-RP2040-Devboard repository on GitHub. It is a 4-layer board of 22.8 × 25.7 mm with 34 parts on 59 nets, routed with 761 tracks and 113 vias.
It is built around the RP2040, W25Q128JVSIQ and AP2112K-3.3, with the USBLC6-2SC6 and WS2812B-2020 among its other parts. Its parts include 17 capacitors, 6 resistors, 4 ICs, 3 connectors and 2 diodes. It belongs with the microcontroller boards boards and the RP2040 boards of this library.
Main components
5
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
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
WS2812B-2020
SMD,2.2x2mm0.6mA 0.84mm 120us 160mcd 200mcd 2kHz 2mm 2mm 300ns 470.4nm 515.6nm 520mcd 5V 622.5nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit、Integrated intelligent reverse connection protection function Top-mount SMD,2.2x2mm RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
README
README.mdMini RP2040 Devboard
Features
- ESD protection(protection against electrostatic discharge from body )
- Dual-core Arm Cortex-M0+ running up to 133 MHz
- 18 GPIO pins| 3 ADC pins| GPIO 4- SDA | GPIO 5 - SCL
SCHEMATIC
PCB
Firmware
No firmware is needed, just hit upload to any sketch on Arduino IDE and it will built itself.
BOM
| Designator | Footprint | Qty | Value | Link |
|---|---|---|---|---|
| C10, C12, C13, C14, C15, C16, C17, C19, C3, C9 | 603 | 10 | 100nF | Already owned |
| C11, C18, C7, C8 | 603 | 4 | 1µF | Robu |
| C4, C5 | 603 | 2 | 15pF | Robu |
| C6 | 805 | 1 | 10µF | Robu |
| D1 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | 1 | WS2812B-2020 | Robu |
| D2 | 603 | 1 | LED | Robu |
| J1 | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | 1 | USB_C_Receptacle_USB2.0_14P | Robu |
| J4, J5 | PinHeader_1x10_P2.54mm_Vertical | 2 | Conn_01x10_Pin | Robu |
| R1, R2 | 603 | 2 | 5.1kΩ | Robu |
| R3, R6 | 603 | 2 | 1kΩ | Robu |
| R4, R5 | 603 | 2 | 27Ω | Robu |
| SW1 | SW_SPST_B3U-1000P | 1 | SW_MEC_5G | Robu |
| U1 | QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | 1 | RP2040 | Robu |
| U3 | SOIC-8_5.3x5.3mm_P1.27mm | 1 | W25Q128JVS | Lion Circuits |
| U4 | SOT-23-5 | 1 | AP2112K-3.3 | Lion Circuits |
| U5 | SOT-23-6 | 1 | USBLC6-2SC6 | Robu |
| Y2 | Crystal_SMD_Abracon_ABM8AIG-4Pin_3.2x2.5mm | 1 | Crystal_GND3 | Robu |
Credits
Kicad - https://www.kicad.org/
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100nF | Capacitor_SMD:C_0603_1608Metric | C3, C9, C10, C12, C13, C14, C15, C16, C17, C19 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C7, C8, C11, C18 |
| 2 | 15pF | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R3, R6 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | Conn_01x10_Pin | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J4, J5 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | Crystal_GND3 | Crystal:Crystal_SMD_Abracon_ABM10-4Pin_2.5x2.0mm | Y2 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | SW_MEC_5G | Button_Switch_SMD:SW_SPST_B3U-1000P | SW1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U5 |
| 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 |
| 1 | WS2812B-2020 | LED_SMD:LED_WS2812B-2020_PLCC4_2.0x2.0mm | D1 |
Questions
How big is the Mini RP2040-Devboard PCB?
It measures 22.8 × 25.7 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Mini RP2040-Devboard use?
34 parts, built around the RP2040, W25Q128JVSIQ, AP2112K-3.3 and USBLC6-2SC6. 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 Mini RP2040-Devboard KiCad files?
From the wafleee/Mini-RP2040-Devboard repository on GitHub, at the commit this page was made from: the board is PCB/Mini RP2040 Devboard.kicad_pcb and its schematic PCB/Mini RP2040 Devboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mini RP2040-Devboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask wafleee before reusing the design.
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