Raspberry Pi Forums

I know very little about programming. I'd like to get started with something I've wanted to do for a while. A basic Bluetooth speaker-phone that can connect to any Bluetooth capable phone.

What's the smallest raspberry pi I can use to create my own Bluetooth speaker-phone with redial button, bright lights, a ringer, a very loud speaker, a sensitive mic and and maybe a basic LED display for text only? I'd like to make the whole thing highly water resistant, hopefully water proof.

What's the best way to get started on this for an absolute beginner?

What are the best options for a very cheap, rechargeable or replaceable battery and would anyone recommend any e-books, courses or specific programming languages to use?

Are there already made modules (software and/or hardware) that could cut down on the total work for this project?

thanks very much

I would concern myself initially with the software aspects. I'm not convinced that HFP/HSP Bluetooth profiles are possible on the Pi; I've yet to hear a success story.

Thanks very much Douglas6. I should have been more specific. This is kind of a home-made medical alert project. So I would like it to function as a one-button dialer and possibly play a pre-recorded message or turn on a mic that a person could use to communicate or activate the phone's speakerphone.

If this is not possible on most bluetooth phones, smartphone or otherwise, I'd like to do it specifically on Android or iOS via an app I could create.

That is not a beginner project from either the software or hardware angles. And even if you did manage to cobble something together would you in your heart of hearts be confident of its reliability to function when needed?

drgeoff wrote: ↑

Wed Mar 27, 2019 11:16 pm

That is not a beginner project from either the software or hardware angles. And even if you did manage to cobble something together would you in your heart of hearts be confident of its reliability to function when needed?

No, I wouldn't be at all confident in its reliability to function when needed, but neither should a person be with a subscription service, considering how long it takes to be connected with an operator who only patches you through to 911. Also, subscription services have no option for a pre-recorded message, describing ones conditions and medications, for example. This would also be more cost effective by a factor of at least 10x, and could be used as a backup if nothing else.

How long do you think it would take to get to an end product by myself, and how could I turn this into a project for multiple people?