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The “Freestyler” () software is a worthy example.Circuit DiagramIt’s assumed that you’ve already installed the FTDI drivers in your PC to make it look like a virtual com port. So try to rig up your own version on a small customized PCB populated with SMD components only, in demand.The circuit, powered by the computer over USB, is fully compatible with a broad range of third-party DMX software. It’s however impractical as it’s bulky and heavy to connect directly in to a standard USB port. The entire circuit can be built on a piece of perforated circuit board of course with SMD adapter PCB for the FTDI chip. The circuit also has on board bias and terminator resistors with selection jumpers and indicators to show system activity. As can see in the schematic, the design uses an FT230X chip with an RS485 converter chip which outputs to an XLR-3 socket. Following is an inexpensive way to get into the world of controlling DMX devices from a PC.RGB LED LightsUSB to DMXHardware of the USB to DMX converter/adapter shown here is realized with the help of two renowned integrated circuits. Even though we can buy readymade converters, naturally there is always a better option – make it from scratch. Playing with RS485/DMX devices through a PC obviously calls for a suitable USB interface because the good old RS232 interface is very rare nowadays. It will be easy to use a common computer to control that intelligent lights but we need the said converter/adapter. The converter is actually a simple USB to RS485 converter with USB input and RS485 output, modified a bit to follow the rules of the background protocol.USB to RS485 Converter AdapterUSB & RS485DMX is common now these days, and we can buy DMX controlled lights at cheap price.
RS485 is a serial transmission standard allows us to put several RS485 devices on a single bus.USB & DMXAlthough USB and DMX is everywhere and quite popular, we certainly need a USB to DMX converter as a ‘translator’ in between the PC and the DMX device. This time the design focus is much more on DMX (Digital Multiplexing) interface, that is, the provision to use the converter as a USB to DMX Interface Adapter, too!USB to DMX Interface AdapterRS485 & DMXThe Digital Multiplex (DMX) protocol (also known as DMX512) is an industry-standard method of achieving intelligent lighting control in discotheques, nightclubs, restaurants, theatres and stage shows. HareendranThis is another revision of my USB to RS485 Converter circuitry which performs the USB (Universal Serial Bus) to two wire RS485 (two-wire half-duplex) and vice versa.