Tom Jenkins and I spent some time this past week figuring out our plans to get our data logger concept off the ground, and so far, we’ve got the basics working. We’ve got an Arduino Mini reading values from a photocell and sending that through a Blue SMiRF Bluetooth module to a Nokia N80 phone running a datalogger java program.
In the above photo, you can see that the phone is logging the photocell values (although at the moment, there’s just one cell — still waiting on parts, of course), which we can then shove over Bluetooth to a computer, which can add them to a running log via a PHP script. If either of us had non-Verizon phones (or weren’t broke) we could probably do this by standard data plans and internets, but hey, you make do with what ya got.
Our next plan is to put two more photocells on the board and cover each in a red, green or blue gel so as to get accurate light values, and wire up a mic to output numerical values of the sound levels in the area. If we ever get it, we’ll also wire up an accelerometer to indicate position and activity of the person wearing it. Updates to follow.
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