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OLAGuruPlug
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This page has migrated to our new site, please see https://www.openlighting.org/ola/tutorials/ola-on-guruplug/.
This content will not be updated and is just left here for reference and will be removed at some point in the future, see the link above for the most up-to-date version.
This describes how to setup OLA on a GuruPlug. These devices make excellent low cost DMX512 nodes.
Features of this system:
- Wifi access point with internet connectivity
- RDM control either over DMX or ArtNet
- Protocol conversion to/from: E1.31, DMX512, ArtNet, ShowNet, Pathport, SandNet, ESP Net
Costs involved:
- GuruPlug, $99 +shipping
- Ethernet Switch, from $30
- USB DMX/RDM Interface, chose from Support Devices, usually around $100-$300
- Wireless Cell Card, shop around. Make sure it works with Linux.
Prerequisites
This assumes you have a shell on the guru plug and that it can contact the internet to download the packages. Note that the default guru plug is insecure and comes with a lot of extras (samba, mysql, lighthttpd etc.) that aren't required. Removing these is outside the scope of this tutorial.
Installation
Add the following line to /etc/apt/sources.list:
deb http://www.nomis52.net/data/ola-arm ./
Then apt-get install ola:
$ apt-get update $ apt-get install olad
Setup
Add a user ola for the daemon to run as:
$ adduser ola
If you intend to use USB devices, you need to add this user to the plugdev & dialout groups. Modify the lines in /etc/group:
dialout:x:20:ola plugdev:x:46:ola
Finally add any udev rules that you'll need. See OLA Device Specific Configuration
Running
Change to the ola user and the start the daemon:
$ su ola $ olad -l 3
Now connect the the GuruPlug on port 9090 with your browser to configure it.
Questions
Ask on the mailing list http://groups.google.com/group/open-lighting
