On 17/09/2011 01:37, IVP wrote: > What variables ? What exactly is wrong, functionally, with the Arduino ? It's actually very little for the money and a poorly designed form=20 factor. You can knock up the same thing (even compatible with the=20 shields) on stripboard in an hour or two. There is now a couple of PIC 18F versions too, that are compatible with=20 the same "Shields". --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .