Keyestudio KS0436 Kit Manual page 97

 The 'setup' function just sets the three pins we are using to be digital
void setup ()
outputs.
{
pinMode(latchPin,OUTPUT);
pinMode(clockPin,OUTPUT);
pinMode(dataPin,OUTPUT); //three pins as output
}
What You Will See:
Hookup well and upload the code to board, you can count the numbers on
segment display from 0 to 9.
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