Bluetooth module and Arduino communication.

Projects Networking, Protocols, and Devices
1

Hi,

I want to make two UNO's talk to each other wirelessly and the wireless protocol that I have selected is Bluetooth. I have searched online but I am none the wiser and wanted your help in deciding which bluetooth modules to buy? I am asking for your help as most of the modules that I saw behave as slaves and they cannot communicate directly with each other according to this article that I just read. Bluetooth Basics - SparkFun Learn

Which bluetooth modules are cheap and good for my specifications in your experience? I checked out this module and I wanted to know if I should go ahead and buy them. As I want to make two UNO's communicate with each other via Bluetooth can both the modules behave as slaves. Is this is a good product?

http://www.amazon.com/gp/product/B0093XAV4U?psc=1&redirect=true&ref_=od_aui_slice_detailpage

Thanks!

2

It's about the only bluetooth you should not buy for this purpose. All bluetooth modules are slave by default, but all except this one can be configured as a master. You will need at least one that can be configured as a master, even if you don't actually use it as a master. At the top right corner of the ad is an HC-05. It will do what you want, and I think it was cheaper.