2 layers290.1 × 130 mm
2 layers21 × 51 mm
Psi2040
ethandb74/Psi_Devboard2040A custom built Devboard based of Rasberry-Pi RPI2040 microcontroller. Built with a focus on effeciency and simplicity. Provides as solid tool for future embedded systms project in C/C++ or Python.
- Size
- 21 × 51 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 53
- Pads
- 193
- Tracks, vias
- 863, 56
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Apr 2026
- Updated
- 14 Apr 2026
Overview
Psi2040 is an open-source printed circuit board by ethandb74, from the ethandb74/Psi_Devboard2040 repository on GitHub. It is a 2-layer board of 21 × 51 mm with 34 parts on 53 nets, routed with 863 tracks and 56 vias.
It is built around the RP2040. Its parts include 17 capacitors, 5 resistors, 4 connectors, 3 ICs and 1 switch. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdPsi_Devboard2040
A custom built Devboard based of Rasberry-Pi RPI2040 microcontroller. Built with a focus on effeciency and simplicity. Provides as solid tool for future embedded systms project in C/C++ or Python. Very valuble learning experience. The most complex PCB project to date. This project was done as part of a larger electronics and robotics competition #Stasis.
This project is named after the greek letter Psi
ART inspiration: I was inspired by the Greek Mythology, more specificlaly the greek god Poseidon and it formed the theme of this board :)
Schematic
Used Rasberry Board as reference
Implemnted new strategies and learned a lot doing this project
PCB
Complicated wiring for me. Took a while to puzzle out how to make all connections and get rid of DRC errors but very rewarding process.
Learned during the PCB desin and routing the most.
Final
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | .1uF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4, C5, C6, C8, C10, C11, C17 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C13, C14 |
| 2 | 1K | Resistor_SMD:R_0402_1005Metric | 3ton db, R7 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C9, C12 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | 33pF | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | Conn_01x20 | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J2, J3 |
| 1 | 10K | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 12 MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 3ton db | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | God of the Sea | USB_C_connector:psiimage | Psi Devboard 2040 |
| 1 | MCP1700x-330xxTT | Package_TO_SOT_SMD:SOT-23 | U4 |
| 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_HRO_TYPE-C-31-M-12 | J1 |
| 1 | W25Q16JVZPIQ TR | Package_SON:Winbond_USON-8-1EP_3x2mm_P0.5mm_EP0.2x1.6mm | U3 |
Questions
How big is the Psi2040 PCB?
It measures 21 × 51 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Psi2040 use?
34 parts, built around the RP2040. 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 Psi2040 KiCad files?
From the ethandb74/Psi_Devboard2040 repository on GitHub, at the commit this page was made from: the board is PCB/Psi2040.kicad_pcb and its schematic PCB/Psi2040.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Psi2040 design in my own project?
Its repository states no licence, so its author keeps all rights: ask ethandb74 before reusing the design.
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