RP2350-Eins
red-scorp·RP2350-Eins
About the RP2350-Eins PCB
RP2350-Eins is an open source RP2040/RP2350 PCB design by red-scorp, published on GitHub. It is a 4-layer board measuring 68.6 × 53.3 mm, with 70 components from 36 distinct parts.
Its main chip is the RP2350A-QFN60, from the RP2040/RP2350 family. Other key parts include the W25Q128JVS, AMS1117-5.0, W25Q128JVEIQ and AMS1117-3.3. By type, the board carries 24 capacitors, 15 resistors, 10 connectors, 5 ICs, 5 transistors and 5 diodes.
It belongs with the power & battery designs in this gallery.
From the project
RP2350-based board with Arduino Uno footprint
The RP2350-Eins project aims to create a replacement for the Arduino UNO R3 or Arduino M0 using the RP2350 MCU. This project was born as a continuation my previous project, RP2040-Eins, which was based on the Raspberry Pi RP2040 MCU.
The RP2350-Eins board is a 4-layer design intended to accommodate the popular Raspberry Pi RP2350 MCU within the standard Arduino UNO R3 footprint.

Main components on the RP2350-Eins
RP2350-Eins bill of materials (BOM)
70 components, 36 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | W25Q128JVS | SOIC-8_5.23x5.23mm_P1.27mm | U1 |
| 1 | RP2350A-QFN60 | RP2350A_QFN-60_EP_7.75x7.75_Pitch0.4mm | U2 |
| 1 | AMS1117-5.0 | SOT-223-3_TabPin2 | U3 |
| 1 | W25Q128JVEIQ | WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U4 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U5 |
| 1 | AO3401A | SOT-23 | Q1 |
| 4 | AO3400A | SOT-23 | Q2, Q3, Q4, Q5 |
| 1 | 12MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | CONN_PWR | BarrelJack_Horizontal | J1 |
| 1 | CONN_ICSP | PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | CONN_A | PinSocket_1x06_P2.54mm_Vertical | J3 |
| 1 | CONN_P | PinSocket_1x08_P2.54mm_Vertical | J4 |
| 1 | CONN_X | PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | CONN_DBG | PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | CONN_JTAG | PinHeader_2x05_P1.27mm_Vertical | J7 |
| 1 | CONN_D1 | PinSocket_1x08_P2.54mm_Vertical | J8 |
| 1 | CONN_D2 | PinSocket_1x10_P2.54mm_Vertical | J9 |
| 1 | CONN_USB | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J10 |
| 1 | BOOTSEL | Button_Tact_Sqkg | SW1 |
| 1 | RESET | Button_Tact_Sqkg | SW2 |
Show 16 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | RED | LED_0603_1608Metric | D1, D2 |
| 1 | PRTR5V0U2X | SOT-143 | D3 |
| 1 | XL-3227RGB-RF | LED_RGB_1210 | D4 |
| 1 | SS14 | D_DO-214AC_SMA | D5 |
| 2 | 100@100MHz | L_0805_2012Metric | FB1, FB2 |
| 1 | 3.3uH | L_0805_2012Metric | L1 |
| 6 | 2.2uF | C_0603_1608Metric | C1, C5, C16, C17, C18, C23 |
| 12 | 100nF | C_0402_1005Metric | C2, C3, C4, C6, C7, C8, C9, C10 +4 |
| 3 | 10uF | C_0805_2012Metric | C12, C14, C15 |
| 2 | 12pF | C_0402_1005Metric | C19, C20 |
| 1 | 4.7nF 1kV | C_1206_3216Metric | C21 |
| 7 | 5k1 | R_0402_1005Metric | R1, R6, R10, R11, R13, R14, R15 |
| 1 | 33 | R_0402_1005Metric | R2 |
| 5 | 10k | R_0402_1005Metric | R3, R4, R5, R8, R9 |
| 1 | 1k | R_0402_1005Metric | R7 |
| 1 | 1M | R_0603_1608Metric | R12 |
RP2350-Eins design files
The KiCad project lives in the red-scorp/RP2350-Eins repository on GitHub; these links point at the commit this page was built from.
RP2350-Eins: common questions
What microcontroller does the RP2350-Eins use?
The RP2350-Eins is built around the RP2350A-QFN60, from the RP2040/RP2350 family.
How big is the RP2350-Eins PCB?
The RP2350-Eins measures 68.6 × 53.3 mm, has 4 copper layers and is 1.6062 mm thick.
How many components are on the RP2350-Eins?
70 components, from 36 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the RP2350-Eins design files?
From the red-scorp/RP2350-Eins repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the RP2350-Eins design in my own project?
The repository has no license, so all rights stay with red-scorp. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the RP2350-Eins 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.
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