USB-DUX is now open source/hardware. After 15 years, USB-DUX data acquisition boards are no longer being manufactured.
Below are the design files which you can send to a prototyping service or manufacturer. We recommend European Circuits (https://european-circuits.co.uk/) here in Glasgow / Scotland.
The USB DUX is the perfect data acquisition unit for real-time monitoring and control. The board takes advantage of the real time speed and power of the USB port and is designed to work perfectly under Linux. This means that it is easy to program and works well on embedded systems or desk top computers. The board is plug and play with most distributions such as UBUNTU.
No need to install any drivers as they are part of the Linux distributions.
USB-DUX uses the comedi framework (http://www.comedi.org). Use the packages provided by your distro. Do not compile comedi from source.
The Raspberry PI team has removed COMEDI ever since from the kernel and if you want to use the USB-DUX on a raspberry PI please follow the instructions here: https://github.com/glasgowneuro/comedi_raspberry_pi_bullseye
sudo apt install libcomedi-dev
sudo apt install libcomedi0
sudo apt install firmware-linux-free
Check that you are in the group iocard. Open the groups file:
sudo nano /etc/group
and see if your username is added to the group iocard:
iocard:x:125:my_user_name
Please join the comedi mailing list here: https://www.comedi.org
Check with
sudo dmesg
if you see:
[ 3506.038554] comedi: version 0.7.76 - http://www.comedi.org
[ 3506.065482] comedi comedi0: ADC_zero = 80011c
[ 3506.066796] comedi comedi0: driver 'usbduxsigma' has successfully auto-configured 'usbduxsigma'.
[ 3506.066849] usbcore: registered new interface driver usbduxsigma
and check that you are in the group iocard:
iocard:x:125:my_user_name
If it's not the case add yourself, save the file and reboot.
- Python package: https://pypi.org/project/pyusbdux/
- Source code: https://github.com/berndporr/pyusbdux
Program to visualise data and record it to your harddrive.
https://github.com/berndporr/comedirecord
24 bit resolution over 16 channels. 24 bits digital I/O. 4 D/A outputs. Electrical isolation of all analogue channels.
Up to 3MHz continous sampling rate. 16 Channels single ended. Single D-Type connector.
Up to 8kHz continous sampling rate. 8 input channels single ended, 4 output channels and 8 digital I/O channels with 2 up/down counters and PWM. Single D-Type connector.
Original design of the company page (2003 - 2021):
https://glasgowneuro.github.io/usbdux/
Bernd Porr bernd@glasgowneuro.com
Kevin Swingler kms@cs.stir.ac.uk