Hi,
I took RGB matrix board last month. I started working on it from last 4 days.Till today it was working fine.Suddenly, it stops working and showed constant small square shape red and blue colour display. I tried all programs and examples but still same result.
I don`t know whether it is RGB Display problem or Arduino Mega problem.
Please tell me the solution for this problem.
Here I attached the photograph of that RGB display colors.