I was wondering if its possible to hook up two devices to the arduinos tx/rx lines. I have a touchscreen lcd monitor from sparkfun that receives and sends info via serial pins 0/1 I also plan to use an xbee module to connect this device to a transmitting unit... also serial data.
Is it necessary to use a larger arduino with multiple serial ports or can I hook them up to the same serial line... The xbee transmits header lines and the screen is also looking for specific headers....
The reason I thought it could possibly work is that the xbee is only receiving data not transmitting so no data to get scrambled on the tx. but when data comes in there will be packets from the xbee as well as serial commands coming from the lcd control library to the screen.
Will the packets stay intact or will they get scrambled if the arduino tries to talk to the monitor at the same time xbee data is coming in???