7 Segment - 8 digits module only works 1 digit

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1

I'm trying to display a scrolling number on my MAX7219 display using the LedControl library, but can only ever get the first digit (digit 0) updating. When I reference digits 1-7 the 7 segments don't light up.

This also happens even with the example sketch LCDemo7Segment. Is there an issue with my display unit perhaps?

Using an Uno board and I am using pin 11 for DataIn, 13 for CLK, and 12 for Load.

2

Compare the connection diagram of Fig-1 with your one and see the difference. Try with the connection diagram of Fig-1.

max7219-8D
max7219-8D757×368 41.9 KB

Figure-1:

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