Hello everybody! I'm new at arduino and I'm sorry if I created this topic to wrong place. My question is which "machines" I need to control arduino wireless from computer with about 50-100 meters range. (I'm making a RC car with arduino). I think I have to buy all of these: http://www.amazon.com/SainSmart-Shield-Module-Arduino-Duemilanove/dp/B006TQ30TW/ref=pd_bxgy_pc_img_y two times http://www.amazon.com/SparkFun-XBee-1mW-Wire-Antenna/dp/B004G4ZHK4/ref=pd_bxgy_pc_img_y http://www.amazon.com/SparkFun-XBee-Explorer-Dongle/dp/B004G4ZJCA/ref=pd_sim_pc_4
But I think they pays about 90 euros and It's very expensive. So fewer devices or have I pay 90 euros?
Thank you for answers!