Coinmatrix
About the Coinmatrix PCB
Coinmatrix is an open source RISC-V PCB design by olell, published on GitHub under the MIT license. It is a 4-layer board measuring 34.8 × 25.2 mm, with 63 components from 4 distinct parts.
Its main chip is the CH32V003FxUx, from the RISC-V family. By type, the board carries 60 diodes, 1 IC and 1 capacitor.
It belongs with the displays & leds designs in this gallery.
From the project
CR2032 sized 8x8 pixel LED matrix driven by a CH32V003
CR2032 sized 8x8 pixel LED matrix driven by a CH32V003. This repo contains firmware and hardware design files.
to build to firmware binary and flash it simply run make inside the firmware directory.
To view the projects in your browser you can use KiCanvas: matrix board battery board * spacer
The firmware source code is licensed under MIT license, you can find a copy of the license text in the LICENSE file.
Main components on the Coinmatrix
Coinmatrix bill of materials (BOM)
63 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CH32V003FxUx | QFN-20-1EP_3x3mm_P0.4mm_EP1.65x1.65mm | U101 |
| 1 | VAL** | mouse-bite-2mm-slot | mouse-bite-2mm-slot |
| 60 | LED_RABG | LED-SMD-4P,1.2x1.2mm | D102, D103, D104, D106, D107, D108, D109, D111 +52 |
| 1 | 100nF | C_0402_1005Metric | C101 |
Coinmatrix design files
The KiCad project lives in the olell/CoinMatrix repository on GitHub; these links point at the commit this page was built from.
Coinmatrix: common questions
What microcontroller does the Coinmatrix use?
The Coinmatrix is built around the CH32V003FxUx, from the RISC-V family.
How big is the Coinmatrix PCB?
The Coinmatrix measures 34.8 × 25.2 mm, has 4 copper layers and is 0.8 mm thick.
How many components are on the Coinmatrix?
63 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the Coinmatrix design files?
From the olell/CoinMatrix repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Coinmatrix design in my own project?
Yes, under the terms of its MIT license, which olell chose for the repository.
Can I test firmware for the Coinmatrix 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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