这是今天的作业:倾斜报警器。
![](https://img.haomeiwen.com/i18845527/6693decc00cd4c44.png)
step 1 画出扩展流程图
![](https://img.haomeiwen.com/i18845527/477323765a58bd58.png)
step 2 制作扩展的电路图连接
![](https://img.haomeiwen.com/i18845527/5f5d1523d673e887.png)
step 3 写出代码
![](https://img.haomeiwen.com/i18845527/349e842917f53287.png)
void setup(){
pinMode(4, INPUT);
Serial.begin(9600);
pinMode(13, OUTPUT);
pinMode(12, OUTPUT);
}
void loop(){
Serial.println(digitalRead(4));
if (digitalRead(4) == 0) {
digitalWrite(13,HIGH);
digitalWrite(12,HIGH);
delay(3000);
digitalWrite(13,LOW);
digitalWrite(12,LOW);
delay(3000);
}
}
网友评论