Jumbo OLED Fun
A few days back, a discussion on the Apple II Facebook group asked about large format Floppy Emu displays for people with vision difficulties. Here’s a 2.42 inch OLED that’s a simple drop-in replacement for the OLED in Floppy Emu…
Steve
Daisy Chain Design Vote
Vote for your preferred Floppy Emu daisy chain design option! I’ve been working on this concept for several weeks, and wrote about it in Daisy Chain Adapter Progress, Circuit Fixes and Pulldown Problems, Part Selection and Schmitt Trigger Oscillator, and…
Daisy Chain Adapter Progress
I’m still working away on the daisy chain adapter concept for Floppy Emu, and I’ve prototyped something that mostly works. It’s a real mess on the breadboard. There’s an AVR microcontroller in there somewhere, plus some open drain buffers, some…
Circuit Fixes and Pulldown Problems
I’m continuing work on the daisy chain adapter concept for Floppy Emu, and I’ve run into a problem. There’s a pulldown resistor on the Floppy Emu board that’s too weak (resistor value is too large) to reliably pull the voltage…
Introducing the Floppy Emu Model C
Today I’m thrilled to announce the newest member of BMOW’s Floppy Emu disk emulator family – the Model C. Floppy Emu is a floppy and hard disk emulator for classic Apple II, Macintosh, and Lisa computers. The new Model C…
Part Selection and Schmitt Trigger Oscillator
I often obsess over little details of my circuit designs, and the daisy-chain adapter for Floppy Emu is no exception. The design needs a small CPLD for the daisy-chaining logic, and for various reasons I have narrowed the choices to…
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