> On Apr 9, 2016, at 9:23 AM, Robert Helling <[email protected]> wrote:
>
> Jeroen,
>
>> On 09.04.2016, at 13:55, Jeroen Massar <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> I have been thinking about doing something similar, and as ny kind of
>> Bluetooth device can works and bluetooth can just do serial comms, it
>> would be relatively easy.
>>
>> One could take a Arduino with a USB and Bluetooth port and it would not
>> be too hard to let them talk together.
>
> I agree, that would be a great possibility. I would love to realize that. But
> I have to admit that my arduino powers are very limited. I did a bit of
> googling and it seems to be still a bit harder: Yes, you can get an Arduino
> with bluetooth. But the other side seems to be harder: You would need to be a
> USB host controller and there are currently not too many Arduino products
> available with that feature. And sticking three boards on top of each other
> (one Arduino one Bluetooth and one USB host controller) does not seem the be
> such an attractive idea when we are talking about mobile.
>
> Also that’s a bit convoluted given that most of the dive computers (as Dirk
> mentioned) actually speak serial over USB. And serial the Arduino can do
> natively. There it’s just the plug that is missing.
>
> But let’s give it a try. There are two sides to it: Talking from a phone to
> an arduino over BT and the Arduino talking to the dive computer (port
> libdivecomputer to Arduino?!?)
>
> What do you think? Do you have any experience in this field?
>
> I will also talk to my hardware hacker friend here.
Well, instead of Arduino, why not use something like the NanoPi
http://nanopi.org/NanoPi_Feature.html#order for $16 or a Raspberry Pi 3 Model
B
https://www.element14.com/community/docs/DOC-80899?ICID=rpimain-feature-products
for $35 (clearly overkill for what we need, but likely easier to work with)
Not sure how availability for either one of these would be in Europe, though.
/D
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