Baffa-2+ Computer

Original posted at Hackaday

Baffa-2+ Computer is a SBC based on the original Baffa-2 Homebrew Microcomputer project. It’s housed inside LowBudgetTech’s 3D-printable Callisto 2 model case, available at thingiverse.com.

Computer Specifications:

  • Z180 CPU @ 18mhz
  • 512KB Ram
  • 512Kb Rom
  • DS1312 RTC
  • YM2149 / AY-3-8910 PSG
  • SDCard Disk
  • Serial Wifi (via ESP-01 Modem Emulation)

Baffa-2 is an educational and personal project with the aim of understanding how computers work through 80’s 8-bit commercial machine designs. It has a modular concept with boards that can be combined to develop your own design and configuration.
Baffa-2 Project at Hackaday: https://hackaday.io/project/183266

Callisto 2 – Fully Printable Retro Computer by LowBudgetTech is licensed under the Creative Commons – Attribution – Non-Commercial – Share Alikelicense.

As the Baffa-2+ looks like an end product, why not invest in advertising?

As seen on tv :D…

The Single Board Computer is equivalent to the following set of Baffa-2 boards:

  • Baffa-2 Full Backplane
  • Z80 CPU
  • Dual Clock
  • Dual Serial SIO
  • Soundcard Ay-3-8910
  • 8255 IDE
  • 512KB RAM/ROM
  • Real-Time Clock
  • Minimal Terminal or PI Pico Terminal

It used a Z180 CPU that provides integrated serial, pio and ctc, so it groups some peripherals on a single board. Similar Baffa-2 setup using Z180:

  • Baffa-2 Full Backplane
  • Z180 CPU
  • Soundcard Ay-3-8910
  • 512KB RAM/ROM
  • Real-Time Clock
  • Minimal Terminal or PI Pico Terminal
Baffa-2+ board schematic

Baffa-2+ SBC:

I am proud to say that this project is sponsored by
PCBWay.

The case was 3D printed using “Callisto 2 – Fully Printable Retro Computer” stl model by LowBudgetTech, available for download at https://www.thingiverse.com/thing:4846997

Printer: Creality Ender 3 v2

Filament: PLA (Brand: 3D Fila)
Rafts: Yes |  Supports: Yes | Resolution: 0.2mm | Infill: 10%

Printing Time:

  • 6 main parts aprox. 36 hours each (216 hours in total)
  • 1 hatch – 10 hours
  • pins and screen holders – 3 hours

Total: 229 hours or 9,5 days (but much more if we consider the failed 3d prints)

Timelapse video:

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Baffa-2 project is sponsored by PCBWAY https://www.pcbway.com/
Full feature custom PCB prototype service with excelent quality and quick delivery.