I am trying to figure out which WiFly module to purchase for a project I am working on.
From what I have been able to figure out, the main difference between these two modules is that the shield frees up the Arduino's UART so that you can use the serial port for something else. Am I reading this right? I am pretty new to Arduino so I'm still learning and don't know much of anything, like what a UART is.
I'm working with an Arduino Mega and I have some probes that a future addon to my project will be using. If I get the breakout board, will I be unable to add on the probes later on?
Also, are there any other differences between the two WiFly modules that are important?