RISKYMouse
About the RISKYMouse PCB
RISKYMouse is an open source RISC-V PCB design by arkadiuszmakarenko, published on GitHub. It is a 4-layer board measuring 18 × 27.9 mm, with 20 components from 11 distinct parts.
Its main chip is the CH32V203C8T6, from the RISC-V family. Other key parts include the LM1117MP-3.3. By type, the board carries 7 capacitors, 4 resistors, 3 connectors, 3 diodes, 2 ICs and 1 fuse.
It belongs with the keyboards and retro computing designs in this gallery.
From the project
Combined projects RISKYKVM, RISKYMOUSE and REA1200
A collection of USB-HID adapter boards based on the WCH CH32V203C8T6 RISC-V microcontroller. The repository holds the KiCad hardware projects and the firmware that turns each board into a USB host for legacy input devices (keyboards, mice, gamepads).
All three boards share the same SoC (CH32V203C8T6, RV32IMAC), the same toolchain, and the same Makefile-driven build.
Main components on the RISKYMouse
RISKYMouse bill of materials (BOM)
20 components, 11 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CH32V203C8T6 | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | LM1117MP-3.3 | SOT-89-3 | U2 |
| 1 | DE9_Plug | DSUB-9_Female_EdgeMount_P2.77mm | J1 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | USB_1 | USB_A_CONNFLY_DS1095-WNR0 | J3 |
| 1 | Fuse | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 3 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D3 |
| 6 | C | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C5, C6 |
| 1 | 0.1μF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 3 | 2.2k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R3, R4 |
| 1 | R | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
RISKYMouse design files
The KiCad project lives in the arkadiuszmakarenko/RISKY repository on GitHub; these links point at the commit this page was built from.
RISKYMouse: common questions
What microcontroller does the RISKYMouse use?
The RISKYMouse is built around the CH32V203C8T6, from the RISC-V family.
How big is the RISKYMouse PCB?
The RISKYMouse measures 18 × 27.9 mm, has 4 copper layers and is 4.69 mm thick.
How many components are on the RISKYMouse?
20 components, from 11 distinct parts. The full bill of materials is listed on this page.
Where can I download the RISKYMouse design files?
From the arkadiuszmakarenko/RISKY repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the RISKYMouse design in my own project?
The repository has no license, so all rights stay with arkadiuszmakarenko. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the RISKYMouse 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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