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Some of you might have noticed Will Fleischer’s enthusiasm for the FEZ mini :-)

I see that it’s on sale for $20,- and I think that it’s a great offer for anyone looking to starting out in C# microcontroller programming.
http://www.ghielectronics.com/catalog/product/134

So I have this OMNIKEY 5534 MultiTag Reader, and according to the manual a test-antenna can be made with a coil of 70 turns with a 0.22mm magnet wire around 36mm spool.
That works great, but I need the spool to be 80mm in diameter, -so the question is, how many turns should I use with a MW30 (0.25mm) wire?

I think this was quit brilliant http://www.thingiverse.com/thing:14895
By the way there are lots of great laser projects in the Thingiverse as well.

As the SN754410 H-bridge driver is rated at 1A, am I correct in thinking that it can handle 1A at the max voltage of 36V and therefor will be able to handle 3A @ 12V and 6A @ 6V ?