ThunderBolt

Project information

USB‑C, hand‑solder desk toy that flashes an LED when it hears a sharp sound — a mic front‑end and a 555 timer fire a ~2.4 second "lightning flash."

kicad pcb-design open-hardware electronics diy-electronics hobby-electr... 555-timer analog-elect... electret-mic... usb-c through-hole led sound-activated desk-toy electronic-kit solder-kit

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Created on

August 16, 2026

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