I am a mechanical engineer with little/no knowledge of wireless communication protocols.I have the need to transfer serial data from my Arduino(microcontroller) to my PC. Steering wheel sends serial data upon request from Arduino-> Arduino receives this serial data -> (wireless protocol sends this data to) -> PC Since my application works with just a constant 2 meter spacing,I have decided to use one of the three wireless communication protocols: RF,Zigbee,Bluetooth. All these 3 cost almost the same,as the RF requires me buying a 2nd Arduino. How should I go about making a decision? I do not understand how bandwidth and bit rate relate to all this.