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# DRControl #
DRControl is a command utility written in Python and uses the pylibftdi. You can control the Denkovi 4 USB Relay board to set relay on or off.
The 4 USB relay board (DAE-CB/Ro4-USB) uses a FT245RL chipset that uses Synchronous Bit-Bang Mode protocol.
## Info ##
* The pylibftdi version 0.11 or later is needed, otherwise the previous relay states does go to off when new state is issued.
* The only relay board that has been tested is the 4 USB Relay board. Support for the 8 USB Board Relay is added, but not tested.
## News ##
4-JAN-2013
Release 0.12c, small bug fixed with the "ALL" option.
3-JAN-2013
Release 0.12, Fixes to 8 USB Board, and the "ALL" action now works for ON, OFF and STATE.
Update, version 0.12b replaces the version 0.12 with a important fix.
2-JAN-2013
Small fixes and 0.11 release available.
27-DEC-2012
Release 0.1 is now downloadable, still working on the documentation.
## Latest Release ##
[Version 0.12c (4-JAN-2013)](http://drcontrol.googlecode.com/files/drcontrol.0.12c.zip)
* Version 0.12c fixes a bug with the "ALL" option
[Version 0.12b (3-JAN-2013)](http://drcontrol.googlecode.com/files/drcontrol.0.12b.zip)
* Version 0.12b fixes a critical bug with checking the correct relay number
* Fixes to 8 USB Relay Board
* All relays can be adressed with "ALL" for ON, OFF and STATE
## Credits ##
* Ben Bass (pylibftdi)
## Resources ##
* USB relay boards from Denkovi [http://denkovi.com](http://denkovi.com)
* Python-FTDI from [http://www.ohloh.net/p/python-ftdi](http://www.ohloh.net/p/python-ftdi)
* pyLibFTDI wrapper for Python-FTDI [https://bitbucket.org/codedstructure/pylibftdi](https://bitbucket.org/codedstructure/pylibftdi)
## Other Projects ##
* [RFXCMD](http://code.google.com/p/rfxcmd/), an command line utility to receive and send messages with RFXtrx433 transceiver.
* [TempSensor](http://code.google.com/p/usb-sensors-linux/), an utility to read data from Lascar EL-USB-RT temperature/humidity USB sensor.
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