Hello! I did a project with Arduino LilyPad, Bluetooth and some sensors. Now, my new project requires Arduino and both communications 3G and Zigbee. So, the device receive data via Zigbee, and then it send this data via 3G to a smartphone (application Android).
Can I use Arduino UNO + 3G/GPRS SHIELD FOR ARDUINO (http://www.cooking-hacks.com/index.php/3g-gprs-shield-for-arduino-3g-gps.html
) + XBEE for Arduino (what type?) ?
Arduino UNO has enough pins? Will I need multiplexor? Will I need Arduino Mega instead of Arduino UNO?
Actually, I am a little lost. Can somebody help me?