Help with choosing bluetooth module to design

Wireless & IoT
1

Hello everyone I am fairly new to bluetooth, I do have an RN-41 that I have figured out how to wirelessly load sketches onto my micro, but I have a few questions I am hoping you guys can help me out with.

I am going to be designing the pcb for the final project and the pcb cannot be any wider than .4", so the RN-41 or any bluetooth module similar will not fit, it is simply too wide. Does anybody know of a bluetooth design preferably Bluetooth 4.0 that is totally open source that I can reference from? The project communicates with a computer via serial, I will also need to be able to communicate to smart phones for future android and iOS apps and lastly "which I am not familiar with at all, I will need to be able to distinguish individual ID’s of the same project design, so I can control multiple devices individually.

Thank you

2

Most modules are built on top of a TI CC2540 or CC2541 I think. So you could build your own, not sure if there is lots of open source modules that you can copy, but keep in mind even if you did, you would probably need to certify your module or product to build it on mass, which can be expensive (around 40k according to a website).

A small bluetooth module I found fits 9.15mm by 15.725 mm… So 9.15mm is less than 0.4" by a bit, might be better to just use it. It is the bluegiga ble113. The pads are under the chip, worse than qfn in my opinion. I posted a question to see if anyone has done it with a hot air gun or if an oven is required.

3

msj121 this is perfect, thank you. I thought I looked everywhere high and low. I don’t think you can solder this with a hot air gun, a hot plate would do.