这是我们今天的作业:倒车雷达。
我们首先看一下这次的作业单:


float checkdistance_13_12() {
digitalWrite(13, LOW);
delayMicroseconds(2);
digitalWrite(13, HIGH);
delayMicroseconds(10);
digitalWrite(13, LOW);
float distance = pulseIn(12, HIGH) / 58.00;
delay(10);
return distance;
}
void setup(){
pinMode(13, OUTPUT);
pinMode(12, OUTPUT);
Serial.begin(9600);
pinMode(11, OUTPUT);
pinMode(10, OUTPUT);
}
void loop(){
Serial.println(checkdistance_13_12());
if (checkdistance_13_12() > 0 && checkdistance_13_12() < 10) {
digitalWrite(13,HIGH);
digitalWrite(12,HIGH);
digitalWrite(11,LOW);
digitalWrite(10,LOW);
delay(500);
digitalWrite(13,LOW);
digitalWrite(12,LOW);
digitalWrite(11,LOW);
digitalWrite(10,LOW);
delay(500);
} else if (checkdistance_13_12() >= 10 && checkdistance_13_12() < 20) {
digitalWrite(13,LOW);
digitalWrite(12,LOW);
digitalWrite(11,HIGH);
digitalWrite(10,LOW);
delay(1000);
digitalWrite(13,LOW);
digitalWrite(12,LOW);
digitalWrite(11,LOW);
digitalWrite(10,LOW);
delay(1000);
} else if (checkdistance_13_12() >= 30) {
digitalWrite(13,LOW);
digitalWrite(12,LOW);
digitalWrite(11,LOW);
digitalWrite(10,HIGH);
delay(2000);
digitalWrite(13,LOW);
digitalWrite(12,LOW);
digitalWrite(11,LOW);
digitalWrite(10,LOW);
}
}
谢谢大家!
网友评论