A Retro Computer in Badge Format for 8‑bit 6502 Fans!

50 Years of the 8‑bit MOS 6502 Microprocessor

The legendary MOS 6502 was introduced in 1975 and changed the world of computing. It delivered performance at a low price and enabled the rise of home computers.

Video on YouTube

Famous 6502‑based systems:

• Apple II
• Commodore VIC‑20 & C64
• Nintendo NES
• BBC Micro
• Atari VCS

What is the “Computer Badge”?

The MOS 6502 50th Anniversary Computer Badge is a minimalist re‑release of the original—compatible, yet rebuilt with modern parts to make it easy to assemble today.

Highlights:

• W65C02S microprocessor @ 2 MHz
• 32 KB RAM with battery backup
• 32 KB EPROM with floating‑point BASIC + 6502 monitor
• 7‑digit 7‑segment LED display + 7 LEDs for effects
• USB‑C Serial TTL (CH340) – plug directly into your PC
• DC/DC step‑up module for stable battery operation
• CR2032 coin cell to retain SRAM data

Fully functional, programmable in assembler or BASIC — and still small enough to wear as a retro name badge.

What can you use it for?

• As a retro name badge with a scrolling text of your choice
• To celebrate 50 years of the 6502 and the home‑computer era
• As a teaching project for assembler, BASIC, and hardware nostalgia
• For tinkering & fun with a minimal part count
• Simply as a cool collectible for the anniversary

Technical Specs at a Glance

• W65C02S @ 2 MHz
• 32 KB RAM with battery backup
• 32 KB EPROM (BASIC + Monitor)
• 2× 8‑bit output latches
• 7‑digit 7‑segment LED display + 7 LEDs
• USB‑C to TTL CH340 UART adapter (BTE17‑06B)
• DC/DC 5 V step‑up boost converter
• Charging function for 3× AA NiCd cells

👉 This gives you a fully featured retro system in your hand—minimalist, educational, and a real eye‑catcher at any nerd meetup. 😎