uKVM — KVM expansion board
Zucker's open KVM card based on the yuzuki-hcc HDMI capture design; standard or micro-HDMI input, recessed to fit the case.
What it takes
- Plug & play
- Purchase required
- Soldering
Difficulty 3 of 3 — advanced.
Details
A community alternative to the Openterface card, referencing the yuzuki-hcc capture design. Each board takes either a full-size or a micro HDMI input (not both), and the full-size port had to be recessed to fit. Schematics and PCB files are published; the maker notes it can't be shipped outside mainland China, so most people would fabricate their own.
Links
Open at Forum thread- GitHubRepository
Related mods
Plug-and-play KVM: HDMI capture in and USB HID out, so the console becomes a portable crash cart for headless machines.
A community PCB that replaces the 4G modem with four extra USB ports — schematic and layout on Codeberg.
An open expansion card with a LoRa radio (RFM98-class module) and a GNSS receiver, designed for Meshtastic-style use.
A DigiRig 1.9 clone on an expansion card: audio interface with PTT and a UART, both on 2.5 mm jacks, plus an RTC — for portable digital modes.
Zucker's minimal card: a microSD slot, an internal-facing USB port and every GPIO from the PCIe-style connector broken out.
AleReb's card adds more GPIO, a camera connection and several I²C headers, built on PotatoMania's KiCad template.