2 layers70 × 119.5 mm
UHBadge
gianluca-rainis/UHBadge
Universal Hacker Badge - The ultimate badge for hackers.
121 parts2CERN-OHL-S-2.0
2 layers42.9 × 71.5 mm
Spark-2350
PythonAtSea/spark-23503The spark!2350 is a RP2350 based microcontroller that has a RM2 chip for BLE and WiFi. It also has a LiPo battery charger, as it is designed for use in mireless keyboards.
- Size
- 42.9 × 71.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 60
- Nets
- 101
- Pads
- 513
- Tracks, vias
- 736, 63
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Jul 2025
- Updated
- 8 Aug 2025
Overview
Spark-2350 is an open-source printed circuit board by PythonAtSea, from the PythonAtSea/spark-2350 repository on GitHub. It is a 2-layer board of 42.9 × 71.5 mm with 60 parts on 101 nets, routed with 736 tracks and 63 vias.
It is built around the MCP73871EV, W25Q128JVSIQ and ABM8-272-T3, with the SK6812MINI-E among its other parts. Its parts include 22 capacitors, 21 resistors, 5 ICs, 3 diodes and 3 connectors. It belongs with the power and radio and wireless boards and the RP2350 boards of this library.
Main components
4MCP73871EV
-ModulesMicrochip Technology
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
ABM8-272-T3
SMD3225-4P-40℃~+85℃ 10pF 12MHz 50Ω SMD crystal oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
README
README.mdspark!2350
What is this?
The spark!2350 is a RP2350 based microcontroller that has a RM2 chip for BLE and WiFi. It also has a LiPo battery charger, as it is designed for use in mireless keyboards. It also has a user accesable NeoPixel, and a variable charge rate.
Why?
I saw the release of the RM2 and I immediatly knew I wanted to make something with it. I've always thought the nice!nano was cool, so I kinda made that, although this is designed for maximum GPIO availibility, not small size.
made with <3 and insanity.
BOM
| Name | Link | Price |
|---|---|---|
| RPI RM2 | https://shop.pimoroni.com/products/raspberry-pi-radio-module | $4 |
| Pimoroni shpping | n/a | $14 |
| JLC PCBA | N/A | $78.28 |
| JLC shipping | N/A | $38.52 |
| Total | N/A | $134.80 |
Parts
60| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100n | RP2350_80QFN_minimal:C_0402_1005Metric_small_pads | C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C20 |
| 8 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R3, R4, R5, R6, R8, R15, R19 |
| 4 | 4.7u | RP2350_80QFN_minimal:C_0402_1005Metric_small_pads | C5, C6, C7, C19 |
| 2 | 15p | RP2350_80QFN_minimal:C_0402_1005Metric_small_pads | C21, C22 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R16, R17 |
| 2 | 1uF | RP2350_80QFN_minimal:C_0402_1005Metric_small_pads | C3, C4 |
| 2 | 200 | Resistor_SMD:R_0402_1005Metric | R10, R11 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R12, R13 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R20, R21 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 10uF | RP2350_80QFN_minimal:C_0402_1005Metric_small_pads | C1 |
| 1 | 3.33k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 3.3u | RP2350_80QFN_minimal:L_pol_2016 | L1 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 4.7uF | RP2350_80QFN_minimal:C_0402_1005Metric_small_pads | C2 |
| 1 | 470 | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | <value> | RM2:rpi_rmc20452t | U2 |
| 1 | ABM8-272-T3 | footprints:ABM8-272-T3_ABR | Y1 |
| 1 | BOOT | TS-1088-AR02016:SW_TS-1088-AR02016 | SW1 |
| 1 | Boost | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | Green | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | Left | castellated:27right | J3 |
| 1 | MCP1700x-330xxTT | Package_TO_SOT_SMD:SOT-23 | U4 |
| 1 | MCP73871 | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U3 |
| 1 | RP2350_80QFN | RP2350_80QFN_minimal:RP2350-QFN-80-1EP_10x10_P0.4mm_EP3.4x3.4mm_ThermalVias | U1 |
| 1 | RUN | TS-1088-AR02016:SW_TS-1088-AR02016 | SW2 |
| 1 | Red | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | Right | castellated:27left | J4 |
| 1 | SK6812MINI | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D3 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U5 |
Questions
How big is the Spark-2350 PCB?
It measures 42.9 × 71.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Spark-2350 use?
60 parts, built around the MCP73871EV, W25Q128JVSIQ, ABM8-272-T3 and SK6812MINI-E. 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 Spark-2350 KiCad files?
From the PythonAtSea/spark-2350 repository on GitHub, at the commit this page was made from: the board is spark!2350.kicad_pcb and its schematic spark!2350.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Spark-2350 design in my own project?
Its repository states no licence, so its author keeps all rights: ask PythonAtSea before reusing the design.
Similar boards
- 4 layers81.7 × 100.6 mm
Final Project PCB
ndesserich/ECE-36200-Final-Project-PCB
A PCB that integrates an RP2350 and various peripherals to play games.
80 parts1 - 4 layers33.7 × 68.9 mm
RP2350B RM2-module
Pico-Framework/RP2350B-RM2-module
Single-sided RPi RP2350B compute module with RM2 Wi-Fi and Bluetooth
63 parts2 - 2 layers303.6 × 94.1 mm
- 2 layers446.9 × 141.7 mm
- 2 layers421.9 × 145.2 mm
Kaypaw96
Kaympe20/Kaypaw96
A Southpaw 96% keyboard because numpads on the left are awesome They allow the keyboard to be centered on your desk. They let you use the mouse and numpad at the same time. They are plain more ergonomic.
396 parts - 2 layers60 × 50 mm
- 4 layers304.8 × 125.5 mm
