I can get the MAX7219 to initially put numbers on the 7 seg digits, but if I change any value it either turns completely off or completely on (all lights lit 8.8.8.8.8.
I tried to make a timer that counts seconds, but it turned off, then on, then off, etc. every second.
There must be something to do besides calling setDigit.
Where can I look for an example?
I tried to make a timer that counts seconds, but it turned off, then on, then off, etc. every second.
There must be something to do besides calling setDigit.
Where can I look for an example?