Hey everybody. Just wanted to quickly share my build of BKW's fantastic PDDuino TPDD emulator project - https://github.com/bkw777/PDDuino.
This is a little module that plugs into the 25 pin serial on a Model T and lets you use an SD card as a TPDD floppy drive. TS-DOS seems to play nicely with it, and I can save/load any kind of file to an SD card, and even bootstrap TS-DOS on a fresh machine. It works on several boards, I went with an Adafruit Feather version, and it's rather remarkable how little design or assembly was required. The parts were probably ~$40 all in, w/ lipo battery management and charging, and micro sd card slot all there out of the box. Aside from the serial port adapter, all you have to solder are header pins. Also thanks again to Brian for sharing all this, and fielding my many questions about his library with great explanations. (most of these are in this issue thread for anyone curious: https://github.com/bkw777/PDDuino/issues/5) Software for the build is here: * PDDuino firmware, flashable w/ Arduino - https://github.com/bkw777/PDDuino Hardware consists of: * Adafruit Feather M0 Adalogger - https://www.adafruit.com/product/2796 (microcenter also often has these on the shelf) * Adafruit Feather-sized battery - https://www.adafruit.com/product/3898 * Brian's Feather MounT board w/ 25pin serial connector + assorted parts - https://oshpark.com/shared_projects/61udqrJB * any old micro sd card The MAX3232 is the hardest of the whole bunch to get (I imagine Jeff must know this pain well from his backpack project). I ended up having to buy a couple on ebay, but it wasn't too bad. Other than that and a few jellybean 0803 caps, it's just soldering on some headers and a switch. The battery Adafruit sells is designed to tuck in between a Feather and a wing-sized module, with exactly the right sized leads. The whole thing feels compact and solid, though I would like to design a printable case for it. Not quite coffee-shop-friendly at the moment. A few pics: Attached to M102 - https://charliehoey.com/projects/model-t/feather-102.jpg 25pin side - https://charliehoey.com/projects/model-t/feather-angle.jpg top side - https://charliehoey.com/projects/model-t/feather-top.jpg hidden lipo battery - https://charliehoey.com/projects/model-t/feather-battery.jpg I'll wrap up there, but this has been working great for me for a month now, so I wanted to spread the word. Curious if anybody else has given it a try?
