Simple application with GUI and CLI to control DPS5005 power supply unit. CLI version does not require X or graphical environment, you can use it in terminal-only hosts. The application has been developed and tested in Linux environment. There should be no problem to run it on macOS and maybe even Windows is possible as the communication with DPS5005 device is handled by the simple minimalmodbus library.
The application has been tested with Python 3.11.9. It will run (probably) on any version where PySide6 dependency can be installed. The latest Python 3.13 has still problems with PySide and will be supported in near future.
Please check first dps_control.cfg file. It has very few settings but they are important as you need to tell the
CLI in which tty port your DPS5005 device is and what its slave number is. Configuration file also includes setting for used
baud rate. It is highly recommended to use 9600 as other values may not work properly.
Also, please set the maximum voltage and current according to your power supply specs.
There is setting start_power_off which is True by default. This ensures that starting the dps-control application
first switches power off for safety reasons.
In Ubuntu the port is usually /dev/ttyUSB0
or /dev/ttyUSB1 or similar. If you do not know which port your device is in, you can plug it in and
check sudo dmesg log which shows you where it mounted the device.
If you get permission errors about your tty port it might be that your user needs to be added to the dialout group.
sudo usermod -aG dialout $(whoami)
Other Linux distributions may use different tty naming scheme and default user groups, please adjust accordingly.
macOS has not been tested yet. Will test in near future.
Windows has not been tested yet. Most probably it will require some changes to Modbus communication, mainly closing port after each call. Will look into it if there is demand for Windows functionality.
You can run the GUI in virtual python environment with script ./setup.sh in Linux.
This will create virtualenv folder, install requirements there run the application. Once your environment is
set up correctly you can also run the application by
python main.py
python main.py --cli
The leftmost panel is for connectivity settings and status display. Connectivity fields are not editable in GUI, they
should be set in dps_control.cfg configuration file before application launch. The middle panel is for controlling
the output values. You can either turn the dials, drag the bar display up or down or enter the desired value in
the edit box. However, the change is not committed to the DPS5005 device in real-time, you need to hit the Set button
to commit the values. Values cannot be set if there is no verified connection to the device.
On the right hand side panel the current output voltage, current and power are shown in addition on input voltage.
Power button switches DPS5005 output on or off.
Type h to get help, while there are very few commands available. You can control the voltage and current of the
device by running commands:
v 2.32 This will set the output voltage to 2.32 V
a 4.23 This will set the output current to 4.23 A
va 1.2 0.5 This will set the output voltage to 1.2 V and current to 0.5 A
You can toggle power output ON and OFF by x command.
If you want to start live monitoring, you can use l command
which shows you identical readings as you have on your DPS5005 device screen.
Feedback through Github Issues is highly encouraged.
You should be familiar with your own power supply and what output settings it is able to withstand.