A small python script for Raspberry Pi to control a projector via RS232 over sACN (E1.31) or Art-Net (or any other OLA input). Commands are executed if DMX values are hold for more than 5 seconds.
- A serial to ttl adapter (MAX3232) is connected to GPIO pin 14 & 15
- Serial login shell has to be disabled (use raspi-config)
- serial interface must be enabled
- Clone repository:
git clone https://github.com/johannesfelber/beamer_control.git - Change into beamer_control:
cd beamer_control - Make install script executable:
chmod a+x install.sh - Execute install script:
sudo ./install.sh - Reboot
sudo reboot - Add input device to OLA via web interface: http://ip:9090
Beamer control will be startet automatically after sytem boot.
The configuration is stored in /opt/beamer_control/config.py
Per default beamer control listens on universe 1 at address 1. Update address and universe in dict ola according to your requirements.
The serial settings can be updated in dict serial. The default values are tested with BenQ projectors.
All commands are customizable. Just update presets according to your needs. xrange(n, m) defines the DMX values for this preset, the value is a string, which is sent to the projector. The predefined values work with most BenQ projectors.
Hold value for 5 seconds to activate function.
| From | To | Function | Command |
|---|---|---|---|
| 0 | 23 | No Function | - |
| 24 | 46 | Power On | *pow=on# |
| 46 | 69 | Power Off | *pow=off# |
| 69, | 92 | Source VGA 1 (RGB) | *sour=RGB# |
| 92, | 115 | Source VGA 2 (RGB) | *sour=RGB2# |
| 115 | 138 | Source Composite | *sour=vid# |
| 138 | 161 | Source S-Video | *sour=svid# |
| 161 | 184 | Audio Mute | *mute=on# |
| 184 | 207 | Audio Unmute | *mute=off# |
| 207 | 230 | Lampmode Normal | *lampm=lnor# |
| 230 | 256 | Lampmode Eco | *lampm=eco# |