https://salvogendut.github.io/chimeric/tags/hardware/ Recent content in Hardware on Chimeric Hugo en-us Wed, 19 Aug 2026 21:42:06 +0200 https://salvogendut.github.io/chimeric/posts/ps-2-to-msx-mouse-with-an-arduino-nano/ Wed, 19 Aug 2026 21:42:06 +0200 https://salvogendut.github.io/chimeric/posts/ps-2-to-msx-mouse-with-an-arduino-nano/ <p>I was able to put together a cheap PS/2-to-MSX mouse interface using an Arduino Nano. The project works by using the Arduino Nano as the bridge between a standard PS/2 mouse and the MSX mouse port.</p> <p>The design is based on <a href="https://github.com/denjhang/MSX-Nano-Mouse-2025">denjhang’s MSX Nano Mouse 2025 repository</a>, which provides both the Gerber files for the PCB and the firmware source code. Having those files available made the build straightforward and inexpensive: I could order the board, assemble the small set of components, flash the Nano, and connect a PS/2 mouse.</p> https://salvogendut.github.io/chimeric/posts/smoke-testing-the-omega-msx-2/ Wed, 19 Aug 2026 21:35:45 +0200 https://salvogendut.github.io/chimeric/posts/smoke-testing-the-omega-msx-2/ <p>After some initial setbacks, we are finally making progress with the Omega MSX.</p> <p>The first problem was a defective <strong>Yamaha 8139</strong> chip, which prevented the system from booting at all. Once that was resolved, we were able to get the machine to display <strong>C-BIOS</strong> and its diagnostic screens.</p> <p>That revealed a second fault: capacitor <strong>C64</strong> was measuring only <strong>68 µF</strong>, rather than its specified <strong>220 µF</strong>. This was responsible for a strange yellow ghosting effect on the display.</p>