In this episode of Gadget Talk, we dive into a fun beginner-friendly electronics project that’s perfect for gadget caches, puzzle caches, escape rooms, and Maker Magic events!

We’ll show you how to build a simple four-LED touch sensor lock decryptor using an inexpensive TTP223 capacitive touch sensor, four LEDs, and a few basic electronic components. Learn how to create a touch-activated puzzle where the correct sequence unlocks the next stage of your geocache.

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