Questions tagged [dmx]
The dmx tag has no usage guidance.
16
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MAX485 DMX connection polarity/pinout
Im working on an Arduino project that involves receiving DMX with a MAX485 chip. The pinout of the chip has the 2 dmx pins labeled as A and B, but all the DMX pinouts have them labeled as + and -. ...
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Wireless Artnet Node
I wanted to ask for help in researching appropriate Microcontrollers to create a Wireless Artnet/sACN Node for DMX communications with film and stage lighting Fixtures.
The ultimate goal for the ...
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TVS diode identification
I'm trying to ID diodes on a board - the markings on the diodes are "BK 9EJ3D". I understand this is a TVS diode and it's being used to clamp RS485 differential pair to ground with a termination ...
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4
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Isolating DC from DMX signal
I have a DMX controller using a 3-pin connector (gnd, data+ and data-). I need to connect it to some cheap chinese DMX lights.
The problem is that the lights are powered over the same 3 lines using a ...
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2
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AVR DMX Transmitter outputs constant squarewave, not the form of a DMX packet
I'm using an ATMEGA328, with an external 20MHz crystal and fuses set by avrdude as -U lfuse:w:0x46:m -U hfuse:w:0xdf:m. I want to send DMX with it. Using the code ...
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Infineon DAVE v4.2.2. XMC1200 Boot Kit 4-Channel DMX Issue
I am using Infineon Dave v4.2.2. to program the XMC1200 boot kit with colour LED card to read a DMX input signal using a rotary dial.
For those that don' know, Dave uses a simple UI with "apps" that ...
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2
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DMX Control - 50W COB LED
I have a DIY project, with the aim of building an (LED-based) stage/theatre light from scratch.
One of the challenges I've hit with this is getting DMX control to dim the LED. I spent some time ...
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DMX receiver 40V signal
I am creating a DMX receiver circuit. The dmx that is received from a controller (USB DMX dongle) is converted via a transceiver (SN75176BP) to a signal which can be understood by an ATMEGA328P.
I ...
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How to make a circuit for DMX splitter notification LEDs?
I am trying to make a DMX splitter. Everything works now, but it would be somewhat useful to have notification LEDs, like in the example below.
For the input I could use one LED, which I either ...
- 13.9k
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MAX487CPA/SN75176BP RS485 IC gets too warm (in DMX Splitter circuit)
Brief
I built part of the scheme below (input K2/IC5, optocoupler IC9 and output IC6/K3). IC9 is overheating when I connect LED pars to K3, because voltage is flowing back into pin 6/7. If I connect ...
- 13.9k
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DMX chassis(?) pin?
I want to recreate this circuit (only show a small relevant portion):
And my XLR plug for input (K2) looks like this:
I found a reference how to connect K2, +, - and GND to the correct pins of the ...
- 13.9k
3
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1
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2k
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UART Synchronization After Break
With the assumption that not all UART are create equal and that documentation in general is not sufficient to answer this question, I have to ask how can I tell which UARTs (or generally asynchronous ...
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How can I reuse a crowdled bracelet?
I have been to an event last night, where I some wristbands produced by the Crowdled company (see links at the end).
Material of one band: 3 colored leds (2 in total) and a button. Runs on battery. ...
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12V DC DMX LED Controller needs to be reduced to 5V
I need a bit of help for a lighting project I am undertaking. I have a couple of 12 volt DMX LED controllers driving various zones in a bathroom with LED strip.
I want to replace the controlbox for ...
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Decoder with many output combination
Is there anyone there that has knowledge if such IC exist? i search in the internet for years like on distributors etc but somehow I can't see any (maybe i don't know the right term or keyword for it ...
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Problem with chaining many small DMX cables
In DMX cables (used for lights), all cables are daisy-chained.
In my band we are normally on small stages, but occasionally on bigger.
To prevent buying very long cables, I wonder if it is a good idea ...
- 13.9k