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Mon Sep 11, 2017 6:57 pm

Hi all, I am interested in Pi 3 but have some questions: can the Bluetooth connect and talk through a cell phone?
exactly, how much watts does Pi 3 take at 5 volts? Can you connect a microphone to the Pi 3? I understand the Pi 3 has a speaker jack which I hope can be connected to headphones?
just some general questions to get answered before I delve headfirst into this product.
Thanks in advance.

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Re: bluetooth

Tue Sep 12, 2017 12:51 pm

In order:

1. Yes via rfcomm protocol. I don't know if you can use file share though, but I suspect it can do that as well.

2. About 10 watts, recommend you buy a proper pi supply of 2.5 Amps to be safe

3.Yes you can. You can buy ... 2565697958 and use an analog mic. Or you can simply use an USB microphone

4. The pi audio jack can drive earplugs and propably a simple headset. There are plenty of audio modules available for driving something biggers.

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Re: bluetooth

Tue Sep 12, 2017 1:49 pm

1. Yes the Pi can connect with RFCOMM (for serial data) and for file transfer. But it sounds like you want to connect it as a phone headset, which is more problematic. Supposedly BlueALSA is capable of providing the Headset Profile, but I've never heard of it being accomplished on a Pi.

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Re: bluetooth

Tue Sep 12, 2017 6:12 pm

I really appreciate all the help and this forum is pointing me to places I have not been before ( windows programmer in C++, not Linux but close).
I looked up BlueALSA and found many discussions on Raspberry Pi3 and the problems with the propriety Broadcom chip with WiFi.
Yes, I want to connect to a cell phone, plus (getting harder) voice commands to make that connection and disconnect, etc. Its a tall order and lots of studying but been there before with MFC.
So far, discussions are to disable the Bluetooth on the Raspberry Pi3 and put in a USB dongle from ASUS to achieve headphone connections and I haven't even got the the cell phone part but getting there.

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