I decided to buy a bluetooth module for my arduino to connect it wirelessly with my pc. I don't want something fancy, just a module to establish serial wireless connection with my computer. After some search on the net I found that one popular bluetooth module called BlueSmirf Gold or Silver. However I also found this bluetooth module: http://www.amazon.co.uk/Serial-Bluetooth-Module-Transceiver-Arduino/dp/B008VOR67C/ref=sr_1_1?ie=UTF8&qid=1367038802&sr=8-1&keywords=bluetooth+module which is by far cheaper than BlueSmirf.
And I wonder, what's the difference between these two modules and why? Also if you have any other sugestions share them with us!
Thank's in advance!