isoUSBRS422 is an isolated USB - RS422/RS485 converter. It is designed using KiCad. Repository includes KiCad project and necessary firmware files.
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BOM First commit of v1 Nov 9, 2015
Driver
Firmware First commit of v1 Nov 9, 2015
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Schematic
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Readme.md

Readme.md

isoUSBRS422

isoUSBRS422 is an isolated USB <-> RS422/RS485 converter board (~5x5 cm). It should work with Windows, Linux and MacOSX (not fully tested for all operating systems by me).

You can find video tutorials and other details on the project web page:

http://www.alperyazar.com/r/isoUSBRS422v1

THIS PROJECT IS PUBLISHED UNDER CC BY-NC-SA 4.0 LICENSE

AS IS, ABSOLUTELY NO WARRANTY

Folders

  • BOM Contains bill of materials of board

  • Driver Contains necessary drivers. Online Windows 7 (and probably newest versions) should install driver automatically. If you are running on an offline machine you may use drivers at that folder. However, I strongly recommend to get the newest driver from USB chip vendor website: http://www.ftdichip.com/Drivers/VCP.htm I won't update drivers at that folder when FTDI publishes new drivers. They are latest drivers at that time.

  • Firmware Contains profile file for utility called FT_Prog (contains in Utility folder). Once you finish isoUSBRS422 board, FT230x will not work as RS422/RS485 converter. This chip should be programmed only once. You may use the given profiles for proper operation.

  • Gerber Contains Gerber files for PCB production. You may produce exactly same board as mine using these files.

  • KiCad Contains KiCad project files. My KiCad version is (2013-07-07 BZR 4022)-stable. You should able to open project files and edit according to your needs (please consider license).

  • PCB Contains ZofzPCB (see: http://www.alperyazar.com/r/jHtc3 ) rendered board file and some computer generated images of PCB.

  • Schematic Contains PDF of schematic.

  • Utility Some programs to program isoUSBRS422 board an test it.

You are always welcomed to contact me: http://www.alperyazar.com/contact

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