So, I have bought a touchscreen from Aliexpress, https://bit.ly/2Nwt2V4,
which is the same thing as a Waveshare 5 inch LCD, just from a different distributor.
I have connected it to my raspberry pi and installed the drivers, and even calibrated the touchscreen.
However, when I go to touch something, moving or holding down the cursor makes it jump around.
I did connect a DAC on the same 5v and ground that the touchscreen is using, if that makes any difference.
Maybe the DAC is interfering with the ground?
What may be the cause of this? How can I fix this?
Thanks in advance!