Touch Display/RSP4

neOdym_191

Hi there. I have managed it to run the OAK flawlessly with a Raspberry Pi 4. Now, I wanted to use my 7" touch-display, but it seems that the camera stream cannot be displayed on it.
Is there any workflow to consider? The display also runs well on the Pi…but there´s a problem after starting the demo script from the OAK.

dhruvsheth-ai

Hi, I've been using the 7" display screen ocassionally with Raspberry Pi 4B and it shows the display output. Is there any specific problem you are facing? Could you elaborate

I set it up and tried running it. Here's the output -

Thanks!

neOdym_191

Oh, thats cool.
I receive several erros:
addEvent 264 condition failed:event header
addEventwithPerf 276 condition failed:event header
XLinkReadData:156
Device get Data failed: 7

I must say that I´m a pretty newbie in opencv and python. I can´t read these errors properly.

dhruvsheth-ai

Is the error caused on implementing a specific command or over all executions. What are you executing?

neOdym_191

All executions. I was trying to open the demo.py
This demo runs well on this device attached to a standard display, I get the errors only with the attached 7" display.

dhruvsheth-ai

neOdym_191 Interesting...@Brandon what could possibly be the issue here?

GergelySzabolcs

neOdym_191
If the display is powered from the USB port of RPI there won't be enough power for OAK.
The combined max power for all USB devices are 1.2A for RPI4.
https://www.raspberrypi.org/documentation/faqs/#:_{:text=3.0A-,1.2A,-600mA}