• Overload reduced

    AlexGuo1998 • 04/18/2018 at 06:43 • 8 comments

    Those days I was busy on other projects. Sorry for the late update!😂

    And since I'm not a native English speaker, feel free to leave a comment, if there're any improper expressions or grammar mistakes. Thanks.❤

    At first, I thought I could drive the array using 74HC595 for anode, and 74HC138 for cathode. But I was wrong. 74HC138's driving capacity is too low. So when there're many LEDs lit in one row, the row became really dim. Here's an example:

    This is because of the weak driving capacity of cathode.

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