In this post are discussed some of principals used while designing this board.
Size and form factor
The goal of making this board is not to have a smaller or the smallest PCB that runs on… 500 more words
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Recent experiments with the Arduino CapSense library led around the Internet looking for interesting applications. He hit upon a very cool touch scroll wheel made entirely with PCB traces, but the geometry – three interleaved zig zags is impossible to build in the decidedly ungeometric Eagle PCB package. 120 more words