How can I control dot matrix

Hi, @wykim
Welcome to the forum.

Have you actually built it and tried the code?
If so please post your code, using code tags and can you please post a copy of your circuit, a picture of a hand drawn circuit in jpg, png?
Hand drawn and photographed is perfectly acceptable.
Please include ALL hardware, power supplies, component names and pin labels.

How are you powering the panel?
Can you please tell us your electronics, programming, arduino, hardware experience?

Thanks.. Tom.. :smiley: :+1: :coffee: :australia: