I couldn't find an answer for this extreme conditions, and before buying anything I just want to be sure.
The problem is this:
I need Ardunio to be as small as possible and my communication range is as large as possible (at least around 1-3 km).
So I thougt Ardunio Mini + XBee 900 Mhz Pro would be great for me. BUT is the current needed by XBee too much (around 265mA @ 3.3V) for a Arduino Mini? What is meant by 40 mA per pin? Or the 150mA is the limit for whole operation?
Just using a simple 300 feet XBee with a good antenna at ground would give me what I want? I mean is the range tolerable by usage of a good antenna at receiver side? At receiver no power problem.
What do you suggest for my problem?
Thanks a lot.