This is an Electron cartridge that implements the address decoding and level shifting required to interface with a Raspberry Pi running PiTubeDirect.
I've built one of these and verified that it works! It needs a ROM installed containing the Tube Host code (I use MMFS, flashed into one of my 32kb_flash_cartridge standard boards), otherwise the interface shows up in the Electron's memory (&FCE*) but doesn't do anything.
Discussion on the Stardot forums.
