Adafruit's Neopixel lights up Charles' lab as he puts them to the test to see if they really are as easy to use as Adafruit claims. Let's take a look.

The timing for each multi-vibrator is set by an external resistor and capacitor, which are chosen to meet the NeoPixel timing specifications.

This tutorial from Adafruit shows how to create a custom interactive drum set that lights up with sound. It uses a mic amp sensor that is connected to a miniature Arduino Gemma board to detect when… ...