Author Topic: DMX output  (Read 1105 times)

Offline jaysdisaster

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DMX output
« on: April 09, 2017, 10:00:11 PM »
I have a wireless dmx device I would like to experiment with. On the picap the DMX/LOR/REN output I am assuming the shunts connect to a bus row of rx tx and ground. I would like to hook up to these via dupont connectors.
Can i please get a layout of which is which ?
Also any ideas where i can steal 5v after the buck converter I am running 12v in and need 5v @ 500ma to power the wireless transmitter.

Offline David Pitts

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Re: DMX output
« Reply #1 on: April 09, 2017, 10:32:04 PM »
I would not use any power from PICap. The PI needs all of it. The buck converter only puts out 1.5Amps which is barely enough for PI and in some cases not enough. 500ma is not available you will need another source.

The RJ-45 uses the standard DMX pins when set to DMX.

Pin 1 = D+
Pin 2 = D-
Pin 7 = Gnd

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Offline jaysdisaster

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Re: DMX output
« Reply #2 on: April 09, 2017, 10:38:23 PM »
Understood on the power I will have to get it elsewhere. But in regards to the data can I hook dupont connectors up to the shunt pins or would i be better off crimping them into a rj45 ?

Offline David Pitts

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Re: DMX output
« Reply #3 on: April 09, 2017, 10:49:54 PM »


The pins are all the right side pins of each section. So there are three pins for GND, A and B (each) you can connect to.
The left side is the side that goes to particular pins on the RJ-45 connectors.

  G
  N     
  D      B       A
* *    * *     * *
* *    * *     * *
* *    * *     * *






Offline jaysdisaster

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Re: DMX output
« Reply #4 on: April 09, 2017, 10:55:44 PM »
Got it thank you Dave
I assume A is D+ and B is D-

Offline David Pitts

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Re: DMX output
« Reply #5 on: April 10, 2017, 12:08:05 AM »
Yes

 

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