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Ch32v003-promicro

74th·ch32v-dev-boards·ch32v003-promicro/ch32v003-promicro.kicad_pcb

Ch32v003-promicro PCB layout, top view — open source RISC-V board by 74th
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About the Ch32v003-promicro PCB

Ch32v003-promicro is an open source RISC-V PCB design by 74th, published on GitHub under the MIT license. It is a 2-layer board measuring 17.8 × 33 mm, with 24 components from 18 distinct parts.

Its main chip is the CH32V003F4P6, from the RISC-V family. Other key parts include the AMS1117-3.3 and CH213K. By type, the board carries 8 resistors, 6 capacitors, 4 connectors, 3 ICs, 1 jumper and 1 switch.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Shop(Booth, Japan): https://booth.pm/ja/items/4645948

Shop(Booth, Japan): https://booth.pm/ja/items/4645948

- ProMicro size - To emulate a ProMicro, as the CH32V003 lacks sufficient GPIOs, pin 19 (20/A2) is connected to GND via a 0-ohm resistor (R5). - The MCU's VCC is set to 3.3V, but can be switched to 5V by connecting JP1 and removing the U2 3.3V regulator. - v1.1.0~: The USB D+/- is pre-wired to D3 and D4 for using rv003usb. If not used, simply do not mount the damping resistors. - The oscillator used is the MCU's built-in oscillator.

Ch32v003-promicro, from the project README
From the project README

Main components on the Ch32v003-promicro

AMS1117-3.3CH32V003F4P6CH213K

Ch32v003-promicro bill of materials (BOM)

24 components, 18 distinct parts.

QtyPartRefs
1
AMS1117-3.3
U1
1
CH32V003F4P6
U2
1
CH213K
U3
1
USB2.0_C_v3
J1
1
SWD-MCU_Side-10Pin
J2
1
ProMicro-LeftPin
J3
1
ProMicro-RightPin
J4
1
SolderJumper_2_Open
JP1
1
SW_Push
SW1
1
Blue
D1
2
10u
C1, C2
3
100n
C3, C4, C5
1
1u
C6
2
5.1k
R3, R4
1
1.5k(NC)
R5
2
27.4(NC)
R6, R7
1
0
R8
2
10k
R9, R10

Ch32v003-promicro design files

The KiCad project lives in the 74th/ch32v-dev-boards repository on GitHub; these links point at the commit this page was built from.

Ch32v003-promicro: common questions

What microcontroller does the Ch32v003-promicro use?

The Ch32v003-promicro is built around the CH32V003F4P6, from the RISC-V family.

How big is the Ch32v003-promicro PCB?

The Ch32v003-promicro measures 17.8 × 33 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ch32v003-promicro?

24 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ch32v003-promicro design files?

From the 74th/ch32v-dev-boards repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Ch32v003-promicro design in my own project?

Yes, under the terms of its MIT license, which 74th chose for the repository.

Can I test firmware for the Ch32v003-promicro without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RISC-V firmware against it before you order a PCB.

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