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Sunday evening and nothing to do? Well, at least this evening there were people in the space and equipment to play with. For example a random wind speed monitoring device that we examined and found out that it's basically just a dumb rotary sensor that triggers an interrupt on your serial port. Then any calculations needed are performed on the computer - just as with fan speed measurements. Ingenious, but not smart, so to say.

[caption id="attachment_168" align="aligncenter" width="300" caption="Look at it go!"][/caption]

So we spent our sunday evening looking at the wave form of a spinning wind meter on an oscilloscope. Just to make really, really sure that we knew what we were looking it.

Welcome to Grill-bit. We find dots interesting.