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Everyone likes new technology, but sometimes, it is the creative use of some good ol’ tech that gets all the oooohs and aaaaaahs. Um… why did I write that? Anyways, the analog bandwidth meter is an arduino powered device, made from what earlier was an ammeter. In case you’d like to have a go at it yourself, the creators have put the source code online.

Via: Dk7sl [Machine Translated], Gizmodo

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