86 lines
1.6 KiB
C++
Executable File
86 lines
1.6 KiB
C++
Executable File
/*
|
|
20 MC猜数字 - 2 LED数码管
|
|
太极创客
|
|
www.taichi-maker.com
|
|
|
|
此程序用于太极创客<<零基础入门学用Arduino教程>>
|
|
20 MC猜数字 - 2 LED数码管
|
|
课程的演示实验使用。
|
|
|
|
2017-04-21
|
|
*/
|
|
|
|
void setup() {
|
|
pinMode(3, OUTPUT);
|
|
pinMode(4, OUTPUT);
|
|
pinMode(5, OUTPUT);
|
|
pinMode(6, OUTPUT);
|
|
pinMode(7, OUTPUT);
|
|
pinMode(8, OUTPUT);
|
|
pinMode(9, OUTPUT);
|
|
|
|
}
|
|
|
|
// the loop function runs over and over again forever
|
|
void loop() {
|
|
|
|
// 显示 1:
|
|
digitalWrite(4, HIGH);
|
|
digitalWrite(7, HIGH);
|
|
delay(500);
|
|
|
|
// 清理显示内容
|
|
digitalWrite(3, LOW);
|
|
digitalWrite(4, LOW);
|
|
digitalWrite(5, LOW);
|
|
digitalWrite(6, LOW);
|
|
digitalWrite(7, LOW);
|
|
digitalWrite(8, LOW);
|
|
digitalWrite(9, LOW);
|
|
delay(500);
|
|
|
|
// 显示 2:
|
|
digitalWrite(3, HIGH);
|
|
digitalWrite(4, HIGH);
|
|
digitalWrite(5, HIGH);
|
|
digitalWrite(8, HIGH);
|
|
digitalWrite(9, HIGH);
|
|
delay(500);
|
|
|
|
// 清理显示内容
|
|
digitalWrite(3, LOW);
|
|
digitalWrite(4, LOW);
|
|
digitalWrite(5, LOW);
|
|
digitalWrite(6, LOW);
|
|
digitalWrite(7, LOW);
|
|
digitalWrite(8, LOW);
|
|
digitalWrite(9, LOW);
|
|
delay(500);
|
|
|
|
// 显示 3:
|
|
digitalWrite(3, HIGH);
|
|
digitalWrite(4, HIGH);
|
|
digitalWrite(5, HIGH);
|
|
digitalWrite(7, HIGH);
|
|
digitalWrite(8, HIGH);
|
|
delay(500);
|
|
|
|
// 清理显示内容
|
|
digitalWrite(3, LOW);
|
|
digitalWrite(4, LOW);
|
|
digitalWrite(5, LOW);
|
|
digitalWrite(6, LOW);
|
|
digitalWrite(7, LOW);
|
|
digitalWrite(8, LOW);
|
|
digitalWrite(9, LOW);
|
|
delay(500);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|