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