I am running Adafruit's RGB Matrix Panel Library example called testshapes_32x64, and one of the panels I have is showing ghosting, where the line below has an image of the line above it. It will wrap around from the 16th row to the first row as well. Based on my Internet research, it seems like this panel is showing capacitance, and I need to add dead time / dwell time to allow the ghosting to disappear. Could someone provide guidance on how that can be done in the library? I have a panel from a different manufacturer that doesn't show this behavior, so the wiring should be correct. Thanks very much for the input!
Based on my Internet research, it seems like this panel is showing capacitance, and I need to add dead time / dwell time to allow the ghosting to disappear
Really?
Sounds like rubbish to me.
This sort of problem is normally caused by incorrect software.
Have you a link to the panel you used?
I have a panel from a different manufacturer that doesn't show this behavior, so the wiring should be correct.
That dosn't follow, it could be that this panel need a bit more supply decoupling. That is more capacitance not less.
Thank you for the input. The panel that is showing the ghosting is this one:
This is a 2-pack, and both panels show the same behavior. The panel version that works and which I was trying to reproduce (out of stock):
I am using the Arduino Mega, following the instructions from Adafruit:
I'm powering the panels with an Agilent E3631A power supply (5V, 5A). The situation that sounds similar to mine:
Thank you for your help!