Review on DEVMO 8 Digit Segment MAX7219 Supports by Daniel Paige
Good universal function control
Bought 4, connected to Arduino Nano and the first lasted about 45 seconds, then seemed to short out and stopped responding all together. Then I connected it to Arduino Uno but it still doesn't work. The second 4-digit intermittent display indicates a bad or weak connection from the factory. Tried the second and it works great with great versatility. Without the defect I would give 5 stars.
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