Raspberry pi with rs485 board

Guvner · Mon Jun 29, 2015 6:28 am

I have a Raspberry Pi 2 and bought THIS rs485 board via ebay.

The board can be connected to the Pi as shown in the image, but will QLC+ work with this board?

If so, I'll pay the 15 Euro right away, since I need to do a show with QLC+ this weekend.

mcallegari · Mon Jun 29, 2015 9:24 am

The answer is no, QLC+ will not work with that adapter.

You should point us to the device specifications, not the wiring diagram, so we could at least understand how Linux maps it (ttyS0 ?), the supported BAUD rates, etc...

Anyway I don't understand how you intend to use it, as apparently it has nothing to do with the DMX world.

Guvner · Mon Jun 29, 2015 9:38 am

This is a pcb with the MAX485 ic on it. It is controlled by UART.

Hope you can do something with THIS info.

And why do you say this has nothing to do with the dmx world? The output of this card is DMX

enbyted · Mon Jun 29, 2015 9:45 am

Hi!

Looks like OLA is supporting native raspberry UART module. I didn't test it, but if you're interested take a look there:
- https://wiki.openlighting.org/index.php ... native_DMX
- http://webcache.googleusercontent.com/s ... clnk&gl=pl (http://fw.hardijzer.nl/?p=138 it's down at the moment, though)
- https://groups.google.com/forum/#!topic ... kEZFEWEMLo

Hope it helps,
Cheers!

mcallegari · Mon Jun 29, 2015 9:56 am

What do you need to control with that device ? Dimmers ? Switches ?

I think your best option at the moment is OLA (which is included in the image I provide)
They have some generic IO support that might get your adapter to work.
However I believe it is no piece of cake to make everything work and you certainly need to have some Linux skills to do it.

You might start from here even though you'll have to dig their forums to find specific answers. You can also try your luck searching "OLA UART" with Google

[EDIT] Bartek was faster than me. So apparently that's the way

Guvner · Mon Jun 29, 2015 11:09 am

I need to control:
18 Showtec Spectral RGB M800
2 dimmer packs (loads of par's and blacklight)
line of dmx flood lights
3 mac 500
And a couple of switch packs

For a dance performace for the local gymnastics

boxy · Mon Jun 29, 2015 11:33 am

Hi,

I use an FTDI part from Farnell: 1740358. It needs a 120ohm resistor soldering to it but works out of the box. It says RS485 which is exactly what DMX is.

I put the unit in a cheap plastic box with an LED to show Tx. Works a treat with my mate's DJ set.

mumbles · Mon Jun 29, 2015 11:33 am

boxy wrote:Hi,

I use an FTDI part from Farnell: 1740358. It needs a 120ohm resistor soldering to it but works out of the box. It says RS485 which is exactly what DMX is.

I put the unit in a cheap plastic box with an LED to show Tx. Works a treat with my mate's DJ set.

You said you had to add 120 ohm resister do you mind me asking what pins I need to add resister on? when I connect mine DMX indicator on dimmer pack flash but I don't have control of light. I know programming is right because my ultraDMX micro works fine.