PICAXE using LEDs to communicate

[Relwin] has being working on using LEDs as bi-directional devices. The setup above allows him to use each LED as an input, looking for a bright light source and then syncing up with the activity it receives. It is the most basic of communications using the components. The hardware at the heart of the system […]

Source: http://feedproxy.google.com/~r/hackaday/LgoM/~3/ng4_FIYlrj0/

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