coop0030 writes: "Becky Stern, of Adafruit Industries, has created a necktie that lights up like a VU meter. A Volume Unit (VU) meter or Standard Volume Indicator (SVI) is a device displaying a representation of the signal level in audio equipment. The project that uses an Electret Microphone Amplifier to trigger 16 Flora NeoPixels sewn with conductive thread along the length of a tie. The NeoPixels are controlled by a Flora running an Atmega32u4 chip."
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