Mini Blinking Barrels Keep Desktop Traffic In Check

A hobbyist built miniature blinking traffic barrels to give a desk a construction-zone look, going far beyond a simple LED blink into a full small-scale production design. The write-up covers 3D printing a support-free barrel body in Fusion, choosing a PIC12F1612 microcontroller over a classic 555 timer for better flexibility and roughly 15% longer battery life, and iterating through multiple PCB revisions plus a custom programming adapter board.

Source: https://hackaday.com/2026/08/19/mini-blinking-barrels-keep-desktop-traffic-in-check. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.