Tag: microcontroller

Modern microcontroller-based Apple IIc keyboard with mechanical switches, configurable backlighting, and a read/write activity indicator.

The MacEffects page said Sold out on 2026-07-24. The source explicitly names the Apple IIc and presents the board as a replacement for unreliable early hairpin-spring keyboards; it does not claim Apple IIc Plus fit.

Current C64 and C128 user- and cartridge-port boards that expose labeled pins for prototyping and hardware development.

Commodore4ever exposes current priced product variants for separate C64/128 user-port and cartridge or expansion-port boards. The user-port page documents its labeled male header and intended test uses. The expansion-board title and board label say EPB and cartridge or expansion port, but its body mistakenly describes access to the User Port and does not enumerate its signals. Human inspection found these guide breakouts to be basic passive pin extenders with no visible active components. No buffering, isolation, fusing, or current limiting is documented; exposed computer pins should not be treated as protected. Syzygy's C64 user-port version is retired and needs its selected header rows soldered.

Programs supported PIC microcontrollers from an Atari 8-bit computer through a joystick port.

Schematics, Gerbers, parts information, Atari software, and bare-PCB order links are public. A build still requires assembly and careful device orientation. Confirm that the exact PIC is supported before programming it; the STIK socket does not support every PIC package or family.