Some sensors needed fixing, a few pins soldered, no big deal. I've read that Koeman does a good job of replacing these items, but this was an easy fix. I would recommend it to anyone learning Arduino. I haven't tested any of the sensors on the Pi's 3.3V logic, but it's easy on the Arduino Uno. If you don't have a drive for the included CD, there are many places where you can find code samples for each device. There are also many pages with documentation on the devices used, it is enough to google a little "Kuman 37-Kit".
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