Why not uncover the lost of treasures of bygone civilizations, (or perhaps forgotten goods from a beachside party) with your very own metal detector? In this Instructable, I’ll show you how to build a metal detector that not only sounds when you’ve discovered something, but lights up as well! Using a handful of basic components and the Intel Edison, we’ll build a basic detector capable of sensing metals of many sorts. You never know what valuables might be beneath your own feet…
Featured Adafruit Products!
Adafruit DotStar Digital LED Strip – Black 144 LED/m – One Meter – BLACK: Move over NeoPixels, there’s a new LED strip in town! These fancy new DotStar LED strips are a great upgrade for people who have loved and used NeoPixel strips for a few years but want something even better. DotStar LEDs use generic 2-wire SPI, so you can push data much faster than with the NeoPixel 800 KHz protocol and there’s no specific timing required. They also have much higher PWM refresh rates, so you can do Persistence-of-Vision (POV) and have less flickering, particularly at low brightness levels. (read more)
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