In my guest bath, I have an Insteon motion sensor that I use to turn on the lights when someone enters. It works although it has a noticeable delay from when you walk in to when the lights turn on. So far my Arduino based motion sensors have been faster so I thought I would build a simple PIR based motion sensor and see if it does better. It is designed to plug into a wall outlet.
Here are some pics:
Here are some pics:
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