scottthehandy8:
thanks for the info.
AWOL is just kidding 
arduino can do only one thing at the same time, but depending on the level of "realtime" you need, you can handle probably a lot of tasks 'at the same time' (one after each other very quicly, the uC runs at 16-20 mhz, so it is nearly 16-20 millions of instructions per sec).