This page has information showing basic ways to use our DMX decoders and encoders for lighting and special effects.
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here to see photos sent in by users.
Using Solid State Relays with Northlight Decoder Boards
Controlling
Hobby Servos with 0-10 volts How to use the 8 and 24 channel decoders to control hobby servo's. |
Analog
encoding. Turning switches and sensors into DMX. |
Simple Oscilloscope trigger circuit for DMX signals. | Light dimmer circuit wth 0 - 10 volt input. |
Acceptable types | Not acceptable |
Crydom HD series HD6025 - HD60125 Crydom D series D1210 - D1240, D2410 - D2490 Opto 22 120D10 - 120D45 Opto 22 Z120D10 - Z120D45 |
Any Crydom with a -10 suffix D1210-10 ect. Any Crydom with an A prefix A2420 ect. Crydom CS CS2410 - CS2490 Opto 22 240D10 - 240D25 Any Opto 22 with an A in the number |
It doesn't get more basic than this, all components are fairly
common. The NPN transistor conditions the input voltage and feeds it to
the timer. The timer is set up to output a variable high pulse,1 to 2
MSec. and a long low pulse,20 MSec. Do not change the value of R7. The
trim pot may be required to compensate for tolerances. The main draw back is that this circuit is not real linear. |
The schematic on thr 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. | ![]() |
This is a simple dimmer circuit that can be controlled with 0 - 10 VDC. The schematic does not show the torroidal chokes necessary the prevent dimmer "buzz". Oops, there was a mistake on the schematic. This is the corrected version. Sorry for any inconvience. Click here to download the schematic in PDF format.
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Encode32 installed in an Arri board, La Coruna Spain.
Lots of room for the extra transformer and board. | ![]() |
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This board is in good condition, just right for an upgrade to DMX. |
Close up of the installed board. | ![]() |