ADE Pro SD Drive

A drive emulator for the Coleco ADAM: an Arduino Mega 2560 carrying an SD card, an LCD and Chris Tersteeg's shield, running Sean Myers' AdamNet Drive Emulator software. It presents itself to the ADAM over AdamNet as real drives, so disk and tape images on the SD card load as though they were the media themselves.

What it emulates

• Up to four disk drives at once, and any combination of them can be disabled so a physical drive can be used alongside it.
• Floppy disk images (.dsk) and digital data pack images (.ddp).
• ColecoVision cartridge ROM images (.rom or .col) of 32K or smaller.

How it is built

• The shield is an open design: the PCB is 99mm by 61mm, the gerbers are published, and a 3D-printable enclosure goes with it.
• The SD card module and supporting parts mount underneath the LCD to keep the footprint down.
• A jumper, JP1, lets the board take its 5V from the ADAMnet line instead of a separate supply.

The emulator software is Sean Myers' work and is maintained separately; Tersteeg's contribution is the board that carries it, an alternative to hand-wiring one.