This is my first project to make public. I love neon filled tubes, because of their warm glow.
Sure, I've already build some clocks using nixie tubes, but this russian 1990´s MC6205 is very special and it catches my interest.
The MC6205 uses a IGPP-100/100 (GIP-10000), which is a 10000 pixel plasma tube. Technically similar to Burroughs SelfScan Plasma tubes.
It has been used in USSR CNC systems, programmable logic controllers and bill counters.
Unfortunately, after I powered it up the first time, I realized, that it has only a limited set of 96 characters.
Most in cyrillic and that rendered it nearly unusable for me.
But hey, in the package, there was the solution for it. Some very detailed schematics.
It took some time, to re-engineer the used eprom's character-set definitions, which was/is really weird.
So, what you will find in this project is a MC6205, which works with an expanded set of 127 characters based on western ISO-Latin-1 and connection to the internet via WLAN.
- main obstacle, you need a customized ROM (EEPROM 2816 or EPROM 2716, 2732)
- further you need soldering experience, a PCB with the driver logic and an e(e)prommer
What you get:
- Some really nice days of hardware and software hacking
- a functional basic weatherstation (openweathermap), NTP-clock and terminal, where you can display text
- ESP32 Arduino knowhow