Curly Mini v0
About the Curly Mini v0 PCB
Curly Mini v0 is an open source RP2040/RP2350 PCB design by 4n3m4i1, published on GitHub under the BSD-3-Clause license. It is a 4-layer board measuring 44.5 × 20 mm, with 55 components from 24 distinct parts.
Its main chip is the C2040, from the RP2040/RP2350 family. Other key parts include the C191253, C5446, C2843335, C496615 and C11317. By type, the board carries 33 capacitors, 7 resistors, 6 ICs, 3 connectors, 3 diodes and 1 crystal.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
MCU Development Boards for Deeply Embedded Industrial Control Applications
By default a single size of the Curly is offered.
Main components on the Curly Mini v0
Curly Mini v0 bill of materials (BOM)
55 components, 24 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C2040 RP2040 | QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | C191253 MCP25625T-E_ML | QFN65P600X600X100-29N | U2 |
| 1 | C5446 XC6206PxxxMR | SOT-23-3 | U3 |
| 1 | C2843335 W25Q16JVUXIQ_TR | IC_W25Q16JVUXIQ_TR | U4 |
| 1 | C496615 SE8650X2-HF | SOT-23-3 | U5 |
| 1 | C11317 MAX3232 | TSSOP-16_4.4x5mm_P0.65mm | U6 |
| 1 | C9002 12.000 MHz, C9002 | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2 |
| 1 | C160389 DEBUG_PORT | JST_SH_BM03B-SRSS-TB_1x03-1MP_P1.00mm_Vertical | J1 |
| 1 | SHORT_USB | PinSocket_1x03_P2.54mm_Vertical | J8 |
| 1 | Conn_01x24_Pin | ICDB_Curly_Edge_Conn | J26 |
| 1 | SW_SPST | TPS850 J14Q V SMTR LFS | SW1 |
| 1 | C72043 LED | LED_0603_1608Metric | D1 |
| 2 | ACPDQC3V3T-HF | 0402C-SOD-923F | D2, D3 |
| 1 | C1002 FB_0603 | L_0603_1608Metric | FB1 |
| 19 | C307331 100n | C_0402_1005Metric | C1, C2, C6, C10, C12, C14, C16, C17 +11 |
| 10 | C12530 2u2 | C_0402_1005Metric | C3, C4, C5, C9, C11, C13, C15, C19 +2 |
| 2 | C1562 33p C0G | C_0402_1005Metric | C7, C8 |
| 2 | C96446 10u | C_0603_1608Metric | C20, C22 |
| 1 | C25905 5k1 | R_0402_1005Metric | R1 |
| 1 | C11702 1k 1% | R_0402_1005Metric | R2 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | C25092 27R | R_0402_1005Metric | R3, R4 |
| 1 | C25104 330R | R_0402_1005Metric | R5 |
| 1 | 120R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 10k | R_0402_1005Metric | R7 |
Curly Mini v0 design files
The KiCad project lives in the 4n3m4i1/Industrial_Control_Dev_Boards repository on GitHub; these links point at the commit this page was built from.
Curly Mini v0: common questions
What microcontroller does the Curly Mini v0 use?
The Curly Mini v0 is built around the C2040, from the RP2040/RP2350 family.
How big is the Curly Mini v0 PCB?
The Curly Mini v0 measures 44.5 × 20 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Curly Mini v0?
55 components, from 24 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 Curly Mini v0 design files?
From the 4n3m4i1/Industrial_Control_Dev_Boards 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 Curly Mini v0 design in my own project?
Yes, under the terms of its BSD-3-Clause license, which 4n3m4i1 chose for the repository.
Can I test firmware for the Curly Mini v0 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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