David Whale (Twitter’s @whaleygeek) has written a blog post about his “Internet of Things Demonstrator”. This is a piece of wood with two Raspberry Pis mounted on it, plus a switch for one Pi and an LED for the other. By using an ethernet cable and some clever Python code, the two Pis can talk to each other and the switch on one Pi controls the LED on the other.
It’s a simple way of showing how two ‘things’ can connect to each other over a network. Take a moment to read it – it’s awesome.
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