At

Commodore4ever

, we’re always looking for ways to enhance and expand your vintage computing experience. That’s why we’re excited to introduce our newly redesigned

User Port Breakout (UPB) Development Boards

, available for the

Commodore 64/128

and

VIC-20

. Whether you’re a seasoned hardware hacker, a tinkerer experimenting with microcontrollers, or just someone looking to safely prototype projects, these development boards are an essential addition to your Commodore toolkit!

What is the UPB Development Board?

The

UPB Development Board

is a

User Port breakout board

that gives you

easy, safe access to all the pins

on your Commodore’s User Port. Designed for versatility and ease of use, the board features a

male pin header

and a

quick reference chart printed directly on the PCB

, so you always know which pin does what—no more flipping through manuals or looking up schematics!

Key Features:

✅

Easy Access to User Port Pins

– Quickly connect and test components without risking damage to your computer.

✅

Built-in Reference Chart

– No need to memorize pinouts—each pin is labeled directly on the board for convenience.

✅

Compatibility

– Available for the

Commodore 64/128, and VIC-20

.

✅

Quality Craftsmanship

– Built with the reliability and attention to detail you expect from Commodore4ever.

Expand Your Creativity: Endless Project Possibilities

The

UPB Development Board

isn’t just a breakout board—it’s a gateway to

new and exciting Commodore projects

. Whether you’re into

hardware development, communication interfaces, or microcontroller integration

, this board helps make your ideas a reality. Here are just a few ways you can use it:

🔹

NodeMCU WiFi Modem Testing

Easily connect and test

WiFi modems

for online connectivity with your Commodore system. This makes it simple to get your vintage computer online, access BBS boards, and experiment with modern networking.

🔹

Arduino & Microcontroller Interfacing

Want to add external sensors, automation, or control systems to your Commodore? The

UPB makes it easy to interface with Arduino, Raspberry Pi, ESP8266, and other microcontrollers

, giving you new ways to integrate modern tech with your classic machine.

🔹

Safe Project Prototyping

Instead of directly wiring your project to your Commodore's User Port—risking potential damage—you can

prototype and test circuits safely

on the UPB before committing to a final PCB design. This is perfect for experimenters and developers working on new expansions or peripherals.

🔹

Custom Hardware Development

Building your own cartridges, interface adapters, or expansions? The

UPB Development Board

allows you to easily test signals, voltages, and new connections, ensuring everything works before making permanent modifications.

🔹

Data Transfer & Experimentation

With access to all User Port signals, you can explore

data transfer, real-time monitoring, and even custom communication protocols

, taking your vintage computing experiments to the next level.

Get Yours Today!

Whether you're a

developer, tinkerer, or retro computing enthusiast

, the

UPB Development Board

is an essential tool for unlocking new possibilities with your

Commodore 64/128 and VIC-20

.

Don't let your creativity be limited—expand your Commodore experience with

Commodore4ever’s UPB Development Board

today!

Order now at




Commodore4ever




and start building your next great Commodore project!