I was trying to make a clock with Arduino and, for that, I started using the MAX7219 4-in-1 but the problem is that when I put a code on it to say something, none of the matrixes turns on. Please help me
I was trying to make a clock with Arduino and, for that, I started using the MAX7219 4-in-1 but the problem is that when I put a code on it to say something, none of the matrixes turns on. Please help me
OK, now read the instructions. 