Tag: serial

Adds one or two modern 115200-baud serial ports supported by RomWBW.

Current listings cover one-port and two-port layouts for Standard or Enhanced Bus. RomWBW 3.4 supports the hardware, with 0xA0 or 0xA8 used for added ports; 3.5 and later also support 0x80 and 0x88. More than four serial ports needs a custom RomWBW build.

Connects an Apple IIgs serial port to MIDI instruments using Apple A9M0103-compatible software.

The interface was out of stock on 2026-07-24. It requires compatible MIDI software, a MIDI-equipped instrument, and two 5-pin DIN MIDI cables.

Replaces or upgrades the custom logic and serial clock parts on an existing EMPLANT Amiga expansion board.

All three parts were in stock on 2026-07-24. These listings do not include an EMPLANT board. The P3 page says an A- or B-model board also needs other necessary parts to become a C model, but it does not provide a complete conversion kit or parts list; inspect the existing board and original manual before buying.

Modern VIC-1011-style user-port RS-232 adapter with status lights, reset, and a software-dependent 9600-baud mode.

Tindie marked the adapter out of stock on 2026-07-30 and says it has been sold out since 2026-01-05. A DB25-to-DB9 adapter is an optional passive accessory, not a separate catalog product.

Connects an RC2014 serial port to a Wi-Fi network.

The ESP8266 and 3.3 V regulator are surface-mount parts that the builder installs. GPIO pads, status LEDs, a small prototyping area, and FTDI programming mode are provided.

Period user-port adapter for connecting low-speed RS-232 equipment to Commodore 8-bit computers.

The surviving builder document describes the original kit and its setup, but no current sale or complete public fabrication package was verified. Look for an original assembled adapter or kit on the used market.

Modern VIC-1011A-style user-port adapter with a DB9 RS-232 connection for the Commodore 64 and 128.

The Tindie seller was taking a break on 2026-07-30 and did not expose an ordering path. GGLABS publishes a schematic for the current revision, but the page does not present a complete fabrication and assembly package.

Expansion-port UART family with SwiftLink-compatible GLINK232 and faster Turbo232-compatible GLINK232T forms.

GLINK232 A03 remains buildable from its schematic, Gerbers, and component-option tables. The faster assembled GLINK232T was unavailable while its Tindie seller was taking a break on 2026-07-30, and its page does not provide a complete fabrication package. The seller text misprints the top T rate as 203400 baud; the maker's overview and register table specify 230400 baud.

User-port USB serial adapter for linking supported Commodore 8-bit computers to a modern host's virtual COM port.

The Tindie seller was taking a break on 2026-07-30 and did not expose an ordering path. GGLABS publishes a schematic, but the page does not present a complete fabrication and assembly package.

Adds high-speed Wi-Fi networking, file-transfer protocols, and SD-card storage to computers with a standard RS-232 interface.

The maker page exposed direct eBay, Sphere Cube, and Arcade Shopper purchase routes on 2026-07-30. Tavily could not independently extract the exact eBay or Sphere Cube destinations, recorded as WF-044 and WF-045, so confirm current stock before ordering. A user-supplied 5 V micro-USB supply is required; the SD card, serial cable, and computer-specific adapters are not included.

Arduino-based C64 cartridge family for fast PRG loading from SD storage or a serial connection.

Gotek Retro lists IRQHack II at EUR 25 including its housing and provides a current order-interest form. The form offers an IRQHack II package with a populated SD card but explicitly has no stock management or availability guarantee and ships only within Europe, with non-EU European destinations handled case by case. Confirm stock and included media before ordering.

Adds RGB color, programmable sound, paged memory, a Forth extension ROM, and serial I/O to the Jupiter II computer.

A2Heaven marked the expansion kit out of stock on 2026-07-27. The historical package included the expansion PCB, active and passive components, pre-mounted SMD parts, placement and schematic diagrams, documentation, and source material. The base Jupiter II computer was separate and also out of stock.

Open SwiftLink-compatible expansion-port UART design for connecting supported Commodore computers to DB9 RS-232 equipment.

RETRO Innovations does not sell assembled Link232 cartridges. The maker publishes EAGLE schematic and PCB files for builders. A separately mentioned future Turbo232-compatible revision has no documented release and is not part of this record.

Open ISA controller with two floppy controllers for up to eight drives, plus optional serial and BIOS hardware.

The assembled and tested card was out of stock on Tindie on 2026-07-25 and had been sold out since January 31, 2026. Open KiCad files, Gerbers, a bill of materials, and a manual remain available. Optional 5 V-on-pin-3 jumpers are only for compatible PS/2-style floppy drives and can damage standard drives if installed incorrectly.

Recreates the 1986 Soviet Radio-86RK home computer on one board with an Intel 8080A, 32 KB of SRAM, integrated keyboard, monochrome composite video, cassette, serial, and parallel interfaces.

The GPL-3.0 repository provides Version 1.4 KiCad files, Gerbers, a bill of materials, monitor and font ROM images, project notes, and archived original magazine material. Weird Electronics' bare-PCB listing was temporarily unavailable while the seller takes a break through August 20, 2026; when active, it includes only the main PCB and two ROM-cartridge PCBs. This is a large through-hole build requiring several vintage Intel 8xxx or compatible chips, 67 key switches, programmed ROMs, and regulated power. The Tindie heading incorrectly calls it an Intel 8088 computer; its own detailed specifications and the project repository correctly identify an Intel 8080A.

Recreates an expandable Apple-1-compatible computer as either a compact single board or a set of functional cards on a backplane.

The GPL-3.0 repository supplies KiCad design files, fabrication exports, schematics, bills of materials, firmware, and assembly guidance. Builders must fabricate boards, source components, solder the computer, program its EEPROM, and load the Arduino Nano interface software. Retro Electronics had one bare backplane PCB, three bare VDU PCBs, and five bare VDU color-amplifier PCBs in stock on 2026-07-27; these are parts of the RC6502 build and do not constitute a complete kit. Early SBC revisions D and E need the documented CPU-power patch wire; the repository's current bill of materials names Revision H.

Combines a working Z80 or Z180 computer with RC2014-compatible expansion sockets on one buildable motherboard.

The official pages listed complete-kit and bare-PCB suppliers on 2026-07-27, but no assembled and tested option. Exact inventory varies by model and supplier; the Tindie seller was temporarily on a break when checked. Each board still needs assembly plus the documented power, terminal, and storage accessories.

Builds complete RomWBW and CP/M computers from matched 40-pin or 80-pin RCBus backplanes and modules.

The official pages listed complete-kit and bare-PCB suppliers on 2026-07-27, but no assembled and tested option. Exact inventory varies by model and supplier. A suitable power supply, storage card, USB serial adapter, terminal computer, and assembly tools may be required as specified for each model.

Adds a clock-stable 68B50 serial port with TTL-level flow control.

The project provides a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. The serial-header power jumper must not connect two competing 5 V sources. Multiple SC705 modules require distinct I/O addresses.

Combines a Z80, paged RAM and Flash, clock, reset, and serial terminal on one RCBus module.

The project provides firmware, a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. SC708 has no automatic power-on reset, so press its reset button after applying power. Avoid duplicate CPU, memory, clock, reset, or serial functions when adding it to a modular system.

Adds two clock-stable serial ports using a Z80 SIO/2.

The project supplies a schematic, Gerbers, PCB design files, and links for kits and bare PCBs; an assembled version is not offered. The full interrupt daisy chain and optional bus signals require the 80-pin RCBus or additional wiring as documented.

Adds an 18.432 MHz Z180 processor, dual serial ports, and a microSD interface.

The project provides firmware, a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. RomWBW supports the microSD interface, while the documented Small Computer Monitor configuration does not. On PCB v1.0.0 the JP2 RX2 and TX2 labels are swapped; v1.0.1 corrects them.

Combines two Z80 SIO/2 serial ports with four programmable Z80 CTC channels.

The project supplies a schematic, Gerbers, PCB design files, and kit or bare-PCB paths. The optional oscillator is not included in the kit. Standard RomWBW does not enable CTC support, so its documented jumper setup bypasses the CTC and assumes a 7.3728 MHz CPU clock.

Open ISA card combining a two-drive floppy controller, RS-232 serial port, and optional BIOS ROM.

The repository supplies KiCad files, Gerbers, a bill of materials, and assembly documentation rather than a retail order path. Install the 5 V-on-pin-3 jumper only for a compatible PS/2-style drive; using it with a standard drive causes a short. Version 1.0 also has a documented option-ROM switch-table error.

Internally powered user-port adapter family for connecting a Commodore 64 or 128 to DE9 RS-232 equipment.

The product page marked the adapter out of stock on 2026-07-30. Grey, black, and white enclosures and the two speed configurations remain one functional product family. The modem, passive DB25 converter, and serial or null-modem cables are separate.

Adds two Zilog SIO/2 serial ports for terminals, printers, and other devices.

Current kits are offered for Standard or Enhanced Bus. The Standard version includes a 20-pin header exposing CLK2, TX2, and RX2. Jumpers can allow either FTDI connection to power the RC2014.

Connects a modern computer or serial controller to a 34-pin floppy drive for low-level flux capture, analysis, and disk duplication.

Human review confirmed that SuperCard Pro was not currently available on 2026-07-15; the official page says "Advanced Version Coming Soon!" Check the direct page for a future release. SuperCard Pro requires a PC-compatible 3.5-inch or 5.25-inch drive, a 34-pin cable, and suitable drive power; Amiga 3.5-inch drives are explicitly incompatible. Floppy-emulator firmware described as planned is not treated as a current feature.

Connects a modern Mac or Linux computer directly to vintage LocalTalk computers and peripherals over USB.

JCM showed 181 assembled units in stock on 2026-07-24. A standard Macintosh crossover serial cable or a LocalTalk dongle is still required; a straight-through serial cable will not work. TailTalk describes itself as a work-in-progress prototype and currently expects a routerless AppleTalk setup.

Adds an Apple IIe-compatible mode with 128K RAM and Double Hi-Res graphics to the Apple III family.

JCM showed one fully assembled set in stock on 2026-07-24 and also listed kit and boards-only choices. No option includes rear-panel brackets. The card set requires the documented startup software and installation procedure, and the reproduced III+II board cannot be used by itself because original conversion changes are built into the other boards.

Adds a 5 V TTL serial port and an independently usable 7.3728 MHz clock.

The current product is a through-hole kit, with a bare PCB also listed elsewhere. It normally replaces an existing 68B50 or SIO/2 module; using it alongside another serial port requires backplane modifications.

Connects supported vintage computers to Wi-Fi BBSes through an RS-232 serial port.

The current Pro V2 model was in stock on 2026-07-30. It has a female DB25 connector, a color TFT screen, a printed case, faster interface buffers, and signal-state LEDs. It needs an external 5 V micro-USB supply, and the host may also need a gender changer, DB9 adapter, or correctly wired computer-specific serial cable. The older display-free and OLED WiModem232 models are discontinued and replaced by this version.