I am using the SmartMatrix SD shield v3 with my teensy 3.1 and I have broke three separate LED displays (2 32x32 and one 32x64) from Adafruit. Each display seems to work fine at first, but before too long, one or more quadrants goes bad. I will loose individual one or more colors to a complete 16x16 part of the screen. The rest of the screen seems to keep functioning. I am powering the display using an adjustable bench supply set to 5V. Here are some pictures of the first two boards. https://forums.adafruit.com/viewtopic.php?f=47&t=79397&p=404366&hilit=SmartMAtrix#p404366
I have no idea what could be causing these issues. The supply seems stable 5v (though maybe its spiking at random moments when I am not checking it). Could it be the SmartMatrix Shield? Should I be running it at 3.3V?
Seeing many are using these same LED displays here, I am hoping someone might have insight or similar experiences. Any help would be greatly appreciated!