DMX transceiver

Hello!

I have a few stepper motors here and I can use them, but now I want to use a DMX signal as a input on a arduino as a input so that I choose the "address" with dip switches and use the 0 to 255 signal the dmx sends on that channel.

How would I do this?

I also don't have a lot of experience with coding so please be gentle :) if possible explain how i would do it best?

Thanks in advanced.

Nobody here can explain how I could read a dmx signal??

Me thinks he is speaking of DMX512, a lighting communication standard using RS-485 @ 250Kbps.

Maybe he is talking about the rapper? I don't get rap.


I'd get me an RS485 to TTL serial converter, connect to the hardware input pins, set rate to be 250K, then set to decoding packets. Should be doable but at 250K you'd need to decode your packets efficiently. No time to waste.

Go here http://www.freeduino.org/ and look under "D"

I'd get me an RS485 to TTL serial converter, connect to the hardware input pins, set rate to be 250K, then set to decoding packets. Should be doable but at 250K you'd need to decode your packets efficiently. No time to waste.

And how would you do that, I'm pretty new with all those things

I have found this http://www.hoelscher-hi.de/hendrik/light/ressources/an112.pdf but I don't understand it.

Hi,

my AN explains how to use the DMX reception lib. Here' the right page: www.hoelscher-hi.de/hendrik/english/ressources.htm

best regards, hendrik

I had in mind that the libs aren't useful for the arduino, because the USART is connected to the FTDI... Maybe someone will help me to use my transceiver as an arduino target... (With an FT232R based USB/RS485 interface from Devantech I realized already a small bootloader.)

Thanks i have looked at your site, it was the only good one I have found.

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1213300602

I even asked there how to since I don't know how that coding would be in arduino.