Profan-O-Matic split-flap display & clock - now with WiFi connectivity
How does a flip clock work
The wonderful split-flap Departure Board at Frankfurt Airport
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Last Updated: October 30, 2026
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Summary
8 Segments from a train station display driven by a self made circuit ( jave.de/blog2/?p=111). As an example I have ... Take a look inside my see-through along as I go over my build of David K.'s great Design files (CAD, PCB Files, Code, etc) are available for members on Patreon! Thank you for your support, if you're inclined: ... Hardware used: - (4x) ULN2003A driver ICs for powering the stepper motors - (4x) 28BYJ-48 Stepper motors - 12v adapter ... A luxury brand approached us and asked us to customize two More updates to the device, based on Scott Bezek's An Aileron Aviation Films Production ✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈✈ The very last departure ...