Assign each bit ,in a serially received bitarray, into a function

So send out the 20 bytes, then send a "change now" message so they all update together.

CrossRoads: So send out the 20 bytes, then send a "change now" message so they all update together.

and much time will it take? i can have these commands change every 100ms or 50 ms

Time will depend on the baud rate that your Xbee can support.

I am wondering if, at this time, the project is a bit beyond your level.

LarryD: Time will depend on the baud rate that your Xbee can support.

I am wondering if, at this time, the project is a bit beyond your level.

maybe but i can handle it, i have figured out something ,here is another post discussing it http://forum.arduino.cc/index.php?topic=336852.new#new