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Breakout-board for TQFP44 package

IR doorbell PCB with 2 switching contacts

A web based tool to conveniently collect votes for a long list of items.

When you are not happy with the performance of your 434MHz controlled, battery powered Bubble machine you install an ESP32 and just h'eck it away ;)

PCB to switch the main power of an arcade cabinet

PCB to prevent powerbanks from turning off