I have a USB powered LED strip which has a microcontroller in the USB cable itself. I am trying to control the power supply to the LED through MATLAB such that I can control the light signal waveform. Is there a straightforward way to do that through simple scripting in MATLAB without the use of interfaces such as VISA (VISA app works only with the USB compatible to VISA, I guess.. I tried that)?
I have tried the Instrument control toolbox as well and the same thing.. it operates the USBs compatible with VISA as it doesn't detects my USB even if its plugged in.
I think thats probably a straightforward thing nothing that fancy but just that I am aware of it. So, any help would be highly appreciated!
Thank you very much
What you are really asking for is implementing a low level driver for your device to communicate over USB with your device. It is not that simple. If you insist doing it, you may need to be able to analyze the USB communication protocol/initialization/ etc between your microcontroller and your PC (if you have a working driver for your device, on your PC). Otherwise, you need to write such driver from scratch- get the datasheets for your microcontroller and get busy. But I believe this is not the easy answer you were looking for. Sorry
I recommend Python language to communicate with usb. python is powerful language and easy to learn and has several library.
all what you need are:
python 3.4
pyusb library
pyqt framework if you want to build graphical user interface.
I was tried to connect matlab with my ATMega microcontroller but it cannot recognize that device. So I have connected using delphi 6. I can control the LED brightness by sending a PWM signal setting to the device via USB port using that program. Here the part of the device link. AS mention by Mr. Tobos, it needs a lot of work to do that. But I know that new matlab version can work with arduino, so you can try to use the new version.
Article Implementation of ATMega8 Microcontroller for Data Logger of...
If your Mirocontroller have a PWM output, try controlling the PWM output to power LED. Your microcontroller should accept serial commands from PC USB port. Controlling USB port to send commands without VISA drivers is significantly time consuming as you need to access low level windows drivers.
DEAR MOHAN
CAN I KNOW IF POSSIBLE WE CAN CONNECT THE
DATA SIGNAL THROUGH ELECTRIC WIRES AND CONTROL IT
I HAVE ALREADY FORGET THE CODING AND LOST THE CONTROLLER
THAT HAVE BEEN MADE BY OURS TEAMS
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