This page has ideas
showing basic ways to use our DMX encoders for lighting and special effects.
Buffered
potentiometer PC Joystick for servo
control Analog
encoding
Convert switches and sensors into DMX
signals. Uses are found in Haunted houses, stage plays, themed events,
holiday light animations, anytime you want to control DMX compatible equipment.
Fog machines and strobe lights can be independly controlled by remote switches
or sensors.
1. Use a wall wart transformer to power 8
switches and pots.
2. Use infrared remote to control effects.
3. Use infrared security sensor to control
effects as people pass by the sensor.
The schematic on the right is a example of
a analog board with 0 - 10 volt output. This basic example can work for
relay input, just put the relay in between the pot and the op amp.
Hacking a PC joystick.
PC joysticks come in several flavors these
days. Joy-pads and game pads usually won't work. We need the ones with
potentiometers in them. The conversion is quite simple. Unmodified joysticks
use 2 of the 3 pins on the potentiometer. One end of the pot is connected
to 5 volts, the wiper is the output. Just connect the 3rd terminal of each
pot to ground and now it is wired as a voltage divider.
Using the joystick is straight foreward.
The pots in the stick form a voltage divider. The voltage is encoder to
DMX512. The DMX can be sent up to 1000' to the servo controller.
