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From: Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP>
Newsgroups: comp.lang.ada
Subject: Re: Help with embedded hardware/software platform selection for ADA
Date: Wed, 3 Jul 2013 16:56:36 +0000 (UTC)
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Date: 2013-07-03T16:56:36+00:00
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On 2013-07-03, Dmitry A. Kazakov <mailbox@dmitry-kazakov.de> wrote:
> On Wed, 3 Jul 2013 12:08:33 +0000 (UTC), Simon Clubley wrote:
>
>> On 2013-07-02, Dmitry A. Kazakov <mailbox@dmitry-kazakov.de> wrote:
>>> Why didn't you take an RF TV remote receiver? It has USB/COM interface and
>>> is fairly simple to use. We deployed such stuff in some projects.
>> 
>> I wasn't aware of any devices which remotely match what I need.
>
> That depends of course of what you want. Some of our customers use IrDA and
> proprietary deviations from it. It is usually set on an UART. That is in
> case you needed a bidirectional communication, half-duplex though.
>  

Several hundred bytes per second, capable of running in a pseudo full
duplex mode (uplink is command/control, downlink is telemetry), up to
several hundred metres range, low power license free band (ie: covered
by the Short Range Devices regulations in IR 2030 within the UK).

Needs to operate without line of sight. (That's why your RF reference above
caught my attention. :-))

>> Do you have a pointer to the unit you are thinking of ?
>
> No. The things get out of stock each 2-5 years. It was something like this
> (IR receiver on the left):
>
> http://thumbs4.ebaystatic.com/d/l225/m/mvJHLSCI_af75fy731KBUWw.jpg
>
> though it was RS232, not USB. I don't know if RS232 ones are anywhere to
> find now. This is always a problem with such things. We needed only a
> receiver. The sender was a special design. It was used in several
> interactive rides in an amusement park. The sender was in a fake pistol,
> you get the idea.
>

Thanks, but as you can see from my required specs that would not be
suitable. Thanks for the pointer however.

Simon.

-- 
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world