ChipsHackadayabout 8 hours ago
VFD Clock Runs on a Single AA
2 min read
A clock built by Sciter_ uses an ATmega328P microcontroller and a vacuum fluorescent display harvested from an old calculator. The device runs on a single AA battery or USB 5V power, which also charges a NiMH cell via an LM2576-ADJ buck converter.
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