What is it?

This is a Vacuum Fluorescent Display-Tube display clock kit using Russian IV-11 7 segment display tubes.
As it uses 7 segment display tubes, it can also display hexadecimal A-F characters too!

Firmware open source and extensible - while it makes an excellent clock, you could change the firmware and use it as an internet-enabled IoT display!

No hazardous voltages inside (max 25V)

Included:

• 8 vacuum fluorescent display tubes
• All electronic components including tubes, PCB and 3mm lasercut ply case
• Comes with USB lead (You will need a USB PSU which is capable of 2 amp output)
• Microcontroller (Wemos D1 Pro Mini) is preprogrammed with the firmware (but open source so feel free to reprogram to your needs!)

This kit requires assembly, but all soldering is 'through hole', no fiddly surface mount components. You will need a multimeter to measure voltages to allow you to adjust the converter modules that provide the voltages to drive the tubes

Features:

• 8 Russian IV-11 vacuum fluorescent display tubes, with 3d printed plastic base mounts.
• You can install 6 (in a 2-2-2 HHMMSS configuration for a clock) or all 8 for a more flexible kind of display.
• Each tube beautifully bottom-lit with smart RGB LED.
• Can display numbers or hexadecimal (includes hexadecimal Unix EPOCH time display mode for geeks!)
• Supports different RGB lighting effect modes.
• Auto-dims to adjust to room lighting levels.
• Open source firmware (and hardware!), with WiFi capability, which can be extended to add new features)
• Four buttons, for setting time, or can be programmed to add other features if you like!
• Real time clock with battery backup.