As the Arduino Nano and Micro cost the same ($24.90), deciding which one to buy boils down to your project requirements. If you need the smallest-ever board to build DIY devices like portable ...

Arduino sent over one of the first boards so now we finally have our hands on one! It’s early and the documentation is still a bit sparse, but we did get it up and running to take the board ...

According to [Jan], the boards cost about $20 to $30 each to make ... So you could get 4 radios going on one Arduino if you had too and could manage the power, RF, and other issues involved.