Once we had the thermistor running we switched gears and started messing with the XBee. The XBee is the radio we are using for our wireless system. We started out just setting up a simple text transmission program to get some practice with how it works. we had some issues with addressing in X-CTU, but nothing major. This portion of the process was relatively painless.
The fun didn't stop there, though. Step two was combining our first two projects so that we could take the temperature at one location and transmit it for display across the room. This took a good bit more effort but it was pretty rewarding to see the correct numbers start to pop up on the serial monitor.
After we got the kinks worked out of that setup we switched over to getting the pH sensor set up and calibrated. I went next door to knock out some quick soldering while Deliah and Mike messed with the code. After our experience with the thermistor, it was a pretty straight forward process to transmit the pH readings.
Tomorrow I will have the pleasure of explaining to the team why all the stuff we have done so far won't actually work as a cluster with our some heavy modification. That should be fun... ;)
Also, some friends from last year are back! They aren't as cute and fluffy as they were then. They are in their rebellious teenage years, I think, and are trying to talk unwary students into letting them in the emergency exit.
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