Hi All,
Does anyone have any experience with or know if it's possible to have more than a single bluetooth module running concurrently?
What I'd like to do is have 3 Arduinos in various parts of the room, connecting back to a PC via HC-06 bluetooth modules. One is for barcode reading, one for IR remote control and one to monitor the water levels in some plants.
Bluetooth units always seem to be paired up.
Do you need a bluetooth dongle on the PC per arduino?
Such as:
Hi Crossroads,
Yes, as they'll all be in different parts of the room, they need separate connections (bluetooth or TCP).
I'm trying to avoid having CAT5 running all over the show or the expense of Wifi modules. The HC-06 module is pretty cheap.
I'm using a bluetooth module similar to the one in your link on my PC.
Do you need 3, one to pair up with each Arduino? That's what I'm not sure of.
Yes, one per Arduino as they're physically separated by a fair distance.
Unless you are really PC-savvy, you might find it easier to use one Arduino as a hub for the others, thereby providing a single data feed to PC. I imagine this might be a Mega doing whatever sensing you might need and carrying an HC-06 to talk to PC, plus two HC-05s to talk to the other Arduinos.
I say Mega because it has four proper serial ports but it may be OK to have something smaller and use software serial instead, particularly if the data traffic is one-way.
With this arrangement, I believe the peripheral Arduinos need HC-05s too. I think they are a better choice anyway, being more versatile and about the same price.