Keyestudio ARDUINO maker learning kit, Manual

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100
delay(500);
}
}
void updateLEDs(int value)
{
digitalWrite(latch, LOW);//
shiftOut(data, clock, MSBFIRST, ~value);// serial data “output”, high level first
digitalWrite(latch, HIGH);// latch
}
//////////////////////////////////////////////////////////
Result
After downloading the program, you can see 8 LEDs displaying 8-bit binary number.
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Project 24: 1-digit LED segment display
Introduction
LED segment displays are common for displaying numerical information. It's widely applied on
displays of electromagnetic oven, full automatic washing machine, water temperature display,
electronic clock etc. It is necessary that we learn how it works.
LED segment display is a semiconductor light-emitting device. Its basic unit is a light-emitting
diode (LED). LED segment display can be divided into 7-segment display and 8-segment
display according to the number of segments. 8-segment display has one more LED unit ( for
decimal point display) than 7-segment one. In this experiment, we use a 8-segment display.
According to the wiring method of LED units, LED segment displays can be divided into display