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drcontrol

Python drcontrol forked from https://code.google.com/p/drcontrol/

DRControl is Python script that controls the USB Relay board from Denkovi http://www.denkovi.com.

Requirements

  • Python 2.6+
  • Tested on Raspberry Pi with Python 2.6
  • Tested on Mac OSX 10.8.2 with Python 2.7.2
  • Tested on Ubuntu 12.04 Desktop (via VMWare)
  • Denkovi 4 USB Relay Board, product code DAE-CB/Ro4-USB

Notes

The DRControl will always show all 8 relays even if the connected board is an 4 USB Relay Board. There is no way at the current time to identify if the board is 4 or 8 USB Relay Board.

drcontrol.py

Options

Option Description
-d Device
-r Relay Number
-s Relay State
-l List all available FTDI Devices
-v Verbose

Device (-d)

option -d <device serial number>

Address the relay board with the serial number of the FTDI device, this can be listed with the "-l" (list) switch.

Example below is two devices listed, the "FT245R USB FIFO" is the relay board (4 x USB Board) which is then used the serial "A6VV5PHY" to show the state of the relay 1.

$ ./drcontrol.py -l Vendor Product Serial RFXCOM RFXtrx433 03VHG0NE FTDI FT245R USB FIFO A6VV5PHY 
$ ./drcontrol.py -d A6VV5PHY -r 1 -c state ON 
$

Relay (-r)

option -r <1..8|all>

Needed in to address which relay is going to be commanded.

"ALL" can be used to send the command to all relays. Command is not case sensitive.

Example

$ ./drcontrol.py -d A6VV5PHY -r ALL -c state -v 
DRControl 0.12 
Device: A6VV5PHY 
Send command: Relay all (0xFF) to STATE 
Relay 1 state: ON (2) 
Relay 2 state: ON (8) 
Relay 3 state: ON (32) 
Relay 4 state: ON (128) 
Relay 5 state: ON (4) 
Relay 6 state: ON (16) 
Relay 7 state: ON (64) 
$

Relay Command (-c)

option -c <on|off|state>

Options: on, off, state

ON = To set the relay ON

OFF = To set the relay OFF

STATE = To show the current state of the relay

Command is not case sensitive

Example

$ ./drcontrol.py -d A6VV5PHY -r 1 -c state ON $ ./drcontrol.py -d A6VV5PHY -r 1 -c off 
$ ./drcontrol.py -d A6VV5PHY -r 1 -c state OFF
$ ./drcontrol.py -d A6VV5PHY -r 1 -c on $ ./drcontrol.py -d A6VV5PHY -r 1 -c state ON 
$

List devices (-l)

option -l

List all FTDI devices on the system.

Example

$ ./drcontrol.py -l Vendor Product Serial RFXCOM RFXtrx433 03VHG0NE FTDI FT245R USB FIFO A6VV5PHY 
$

Verbose (-v)

option -v

Give verbose printouts of all commands.

Example

$ ./drcontrol.py -d A6VV5PHY -r 1 -c state -v 
DRControl 0.11 
Device: A6VV5PHY 
Send command: Relay 1 (0x2) to STATE 
Relay 1 state: ON (2) 
$ ./drcontrol.py -d A6VV5PHY -r 1 -c off -v 
DRControl 0.11 
Device: A6VV5PHY 
Send command: Relay 1 (0x2) to OFF 
Relay 1 to OFF 
$ ./drcontrol.py -d A6VV5PHY -r 1 -c state -v 
DRControl 0.11 
Device: A6VV5PHY 
Send command: Relay 1 (0x2) to STATE 
Relay 1 state: OFF (0) 
$

Info

The USB 4 relay board is a product from Denkovi Assembly Electronics ltd

Copyright

Copyright (C) 2012 Sebastian Sjoholm