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Bally-Pinball-Clock

clock

stuff

Instructions for building an Atmega328 based board that plugs into a Bally 6-digit pinball display that shows the time.

(For a less hardware intensive pinball clock using a Raspberry Pi, scroll to Raspberry Pi Clock below)

Basic parts needed:

  • Atmega328 IC and socket (aka Arduino)
  • DS1307 RTC module (keeps time when clock is powered off)
  • Nixie Tube power supply (optional, supports original plasma displays)
  • Small stripboard
  • 20 pin .156 female J1 connector and female pins
  • 7805 Voltage regulator
  • 2 momentary push buttons
  • 2 LEDs
  • 2 220 Ohm resistors
  • 1 10k Ohm resistor
  • 2 10 uF capacitors
  • 2 22 pF capacitors
  • 16 MHz clock crystal
  • DC power jack
  • 12V/1A plug-in power supply
  • misc electronics -- wire/headers/solder

Wiring

wiring

High Voltage Power Supply

The HVPS is available here: https://threeneurons.wordpress.com/nixie-power-supply/hv-supply-kit/

hvpsschmatic

DS1307 Real Time Clock Module

Raspberry Pi Clock

A simlified version of the pinball clock uses a Raspberry Pi instead of all the components used above. The only requirements are to make a connector and install software to a Raspberry Pi. If you'd prefer to make the Pi clock, the instructions and programs are located in the Pi folder.

piclock