Can one buy two cheap (and identical) bluetooth chips and make them talk to each other without needing a PC or a mobile phone?
I'm guessing the answer is a basic 'NO', but I might as well ask.
i.e.: I want to design a PCB and make a number of copies that can talk to each other, but also to a PC or mobile app.
Bluetooth still seems good for the device to app case, but when you take the mobile or the PC away, can you leave it with the devices paired to each other and not require the mobile to host it?
Can this be scaled further to make a basic network of bluetooth. ie: if i put 5 of these one of them pair to all the others? I don't have very high bandwidth requirements.
Like I said, probably not, but it is called "pairing", which I feel implies that the devices are equal somehow. So, what exactly is in the mobile phone or PC or bluetooth dongle that makes it different from a bluetooth device?
Also, if it just so happens that one can recommend a module, I would be really great to be able to get it for under USD$10 each at volumes. : )