DWEII 12V→5V Converter
DC 12V/24V to 5V 10A step-down converter (2-pack)
About
This project turns vintage electromechanical pinball score reels into a working clock.
Details, build log, and files will be posted here as the project progresses.
Parts
ANMBEST 5V 4-Channel Relay
Optocoupler high/low-level trigger for Arduino (2-pack)
BOJACK RL207 Diodes
Rectifier diode, 2A 1000V DO-15 axial (pack of 125)
VOEWT 24V 200W PSU
100–125V AC to 24V DC converter / LED driver
Americanflat 5×10 Frame
Document frame, matted to 3.5×8, black, shatter-resistant
Resources
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🔲
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Documentation
Reel Clock wiring guide (PDF)
Clock Window Panel — Cut File
SVG file for cutting vinyl for the face of the clock with 4 windows
3D Print Files
Mounts, brackets, and enclosures
Source Code
Firmware and control software on GitHub
Demo Video
Reel clock operation demo