FireBeetle 2 ESP32-C5 IoT development board offers GDI display interface, LiPo battery support, 18x GPIO, USB-C port, and ...
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You, too, can build this gorgeous IV-3 VFD clock
This gorgeous DIY IV-3 VFD clock is shared with full build files on GitHub. Uses IV-3 VFDs for a blue-green glow at ~30V - cheaper and lower-voltage than nixies. Complete repo includes schematics, ...
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