My Nixie Clocks

• 2020 kit-build (WeMOS 4 digit from ​https://www.nixieclock.biz/Store.html)
• 2020 version: ClockII_In12B
• 2004 version: ​http://ohm.bu.edu/~hazen/Nixie/

What's next? In stock I have about 12 B-5092 nixies in various states, and even sockets! Dreaming of a clock with programmable RGB lights which can forecast weather, etc. Maybe a Z80 nixie clock!

Want 6 digits with all driven, so 60 outputs if not multiplexed. Also some big neopixel guys. Maybe:

• Z80 CPU
• Z80 PIO
• Z80 DART (2 channels, 1 for WiFi? module, 1 for download/debug)
• EEPROM (in-circuit programmable but with write protect)
• RAM

Parts:

• DS1243Y - 8k x 8 NVRAM with real-time clock ($20 at Jameco)
• DS1307 - 8 pin DIP I2C clock 5V ($4 at Jameco)
• SN75468 - 7 channel HV driver