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English Support - Hardware => easy topics (general) => Thema gestartet von: Chris C am November 16, 2007, 13:48:20 Nachmittag

Titel: interface to embedded processor?
Beitrag von: Chris C am November 16, 2007, 13:48:20 Nachmittag

Hi all,

Currently I have a couple of easy 800 based module running @ home. :) They are used for controlling all light switches and my ventilation unit. Now I would like to integrate my alarm system as well, but this is a bit more complex. Let me explain:
The alarm is controlled by an embedded ATMega32 controller running and controlling the entire system such as PIR sensors, LCD screens, keypad etc... This system was also completely programmed by myself, so I have full access to the firmware if it. Now I would like to add a couple of simple features like "turn on a couple lights when the alarm goes off" e.g. To do so I need an interface connection between my ATMega32 and the easy relais. Most simple approach for me would be RS 232 based as this is available in the ATMega32 controller. Now as far as I understand the RS 232 capabilities of the  easy 800 modules, this is limited to sending data from the easy relais to another device, but not receive data from another device. Is this correct or is there a way to send data to the easy relais over RS 232? If not what would be the best alternative to communicate between my ATMega32 and the easy relais?

Thanks,

    Chris

Titel: Re: interface to embedded processor?
Beitrag von: Mr. Spok am November 16, 2007, 14:25:00 Nachmittag

Hello Chris,

perhaps you can use Easy-Com for the communication.

You can looking here http://easy-forum.net/index.php?topic=2403.0 .


regards Jan

Titel: Re: interface to embedded processor?
Beitrag von: Chris C am November 16, 2007, 15:40:11 Nachmittag

Hi Jan,

Thanks for your suggestion! This is what I would use on a typical PC platform (Hochspracheprogrammier), but this DLL does of course not work on my embedded ATMega32 processor. On the other hand this shows it is possible to have bi-directional communication on the program(COM) port via RS 232. So anyone more info on how to do this "low level"?

Thanks,

Chris

Titel: Re: interface to embedded processor?
Beitrag von: Knodelpa am November 16, 2007, 16:13:13 Nachmittag

Hi Chris,

please send a mail to easy@moeller.net. You can order the complete
protocol description. So you can write your own application.

regards Paul

Titel: Re: interface to embedded processor?
Beitrag von: Chris C am November 16, 2007, 16:36:38 Nachmittag

Hi Paul,

Thanks for your advice I will give it a try!

Chris

Titel: Re: interface to embedded processor?
Beitrag von: Chris C am November 28, 2007, 11:05:02 Vormittag

Hi all,

I've sent my request to easy@moeller.net last week Thursday, but still no response. Has anyone experience with the response time I can expect? Or maybe, is there anyone here on the forum who has this document and could possibly mail it to me?

Thanks,

             Chris

Titel: Re: interface to embedded processor?
Beitrag von: Bimbo am November 28, 2007, 12:33:43 Nachmittag

If you get an answer, please kontakt me (AT89C51)  8)