I am starting to do 4x4x4 LED cube (refer link)
I want to know why there are no resister needed at here.
Is it correct ???
The tutorial using 4 GPIO to control the shared cathode for each layer, using another 16 GPIO to control the anode. There are nothing and directly connect these 20 Pin to D0-D13 & A0-A5. I am using a this color LED, seems need ~3.3v