Hello All, any insight/ shared experience on this is welcome. This is from an Elegoo Super Starter Kit. There isn't any readout after entering code. All components independently verified, and work on other projects. It appears from manual that it might readout: 'HALO' or 'FFFF'. If I flip 5 V and…

4 digit 7 segment display with 74HC595 IC on Elegoo Arduino UNO R3 project #20

dcerner May 8, 2025, 3:43am 5

Good question..I want to say common cathode.

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