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Title: Req: MCP2200 USB <> RS485 Bridge Post by: charudatt on April 08, 2010, 11:46:56 11:46 hello,
Was wondering if anyone has tried to make a project using MCP2200 chip for USB <> RS485 converter. Basically interested in making a DMX dongle like the Enttec - Open DMX USB Interface. regards Title: Re: Req: MCP2200 USB <> RS485 Bridge Post by: folkeu on April 08, 2010, 12:50:34 12:50 Hello,
I try to make an open interface USB -> DMX512 with a pic 18F4550 ou 2550. Can we work together ? I prefer use a pic than another IC because it's not difficult to buy a pic than a specific IC. Ok, the MCP2200 is a new microchip driver. @+ Title: Re: Req: MCP2200 USB <> RS485 Bridge Post by: charudatt on April 09, 2010, 06:10:31 06:10 Hi Folkeu,
There are some very good interface for interfacing the PC - USB to DMX using Atmel AVR's. I personally have successfully built and use uDMX 1.2 USB-DMX Interface http://www.anyma.ch/2007/research/udmx-12-released/ (http://www.anyma.ch/2007/research/udmx-12-released/). Atmel AVR's are cheaper than PIC's in this part of the world ........ ;) but I personally love the PIC's. Microchip's new USB driver chip seems promising and very simple to use. Its also cheaper than its rival FTDI chips. I was just thinking if anyone would be interested in cloneing the Enttec - Open DMX USB Interface using this chip. The hardware could also be a generic USB <> RS485 bridge, not necessarily for use in DMX. regards Title: Re: Req: MCP2200 USB <> RS485 Bridge Post by: kalpakchiev on April 09, 2010, 07:58:32 07:58 In a device I used this schematic and it works. It is tested with 4 devices. Distance between 30 and 50 meters. Cable used - UTP
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