
Technical details
Description, documents, and source code.
Apple II Floppy Disk Emulator
This compact Apple II floppy disk emulator lets an Apple II, Apple II Plus, or Apple IIe load disk images from an SD card instead of relying on aging 5.25-inch floppy disks. It is designed for vintage Apple II users who want a practical, affordable way to boot software, test boards, and preserve disk images.
Key Features
- Emulates an Apple II Disk II-style floppy drive for everyday software loading and testing.
- Includes an STM32F411 BlackPill controller board with an SD card interface.
- Loads Apple II disk image files from the included SD card, including common DSK image workflows.
- Built-in OLED screen shows the file list and selected disk image.
- Four-button control interface for browsing and selecting files.
- Connects to the Apple II floppy interface through a ribbon cable setup shown in the photos.
Typical Uses
- Boot Apple DOS 3.3 and other Apple II disk images from SD card.
- Test Apple II boards and Disk II interface cards without relying on fragile floppy media.
- Demonstrate classic software such as VisiCalc, Karateka, and other DSK images.
- Keep a compact replacement drive solution ready for repairs, demos, and retro computing events.
What's Included
- 1x Apple II floppy disk emulator board assembly.
- 1x STM32F411 / BlackPill controller board, installed.
- 1x OLED display and four-button control interface for selecting disk images.
- 1x prepared SD card / microSD card for loading Apple II disk images.
- 1x ribbon cable for the Apple II floppy interface.
- Hardware tested before shipping whenever stock is available.
Not Included
- Apple II computer.
- Apple II Disk II controller/interface card.
- Copyrighted Apple II disk images or commercial software.
Compatibility Notes
- Designed for Apple II-family vintage computers that use the Disk II-style floppy interface.
- Use properly prepared Apple II disk image files on the included SD card.
- This is a maker-oriented retro computing accessory. Basic Apple II hardware knowledge is recommended.
- Photos may show an Apple II computer, Disk II controller/interface card, and sample software for demonstration. These demonstration items are not included. The emulator's onboard STM32F411 controller board and the prepared SD card are included with this product.