- #define IN1 12//12口电机右正反转,引脚可调下同
- #define IN2 11//11口电机右调速
- #define IN3 10//10口电机左正反转
- #define IN4 9//9口电机左调速
- #define hN1 4//4口左1红外
- //#define hN2 7//7口左2红外
- #define hN3 8//8口右3红外
- #define Trig 2//超声波Trig
- #define Echo 3//超声波Echo
- #define Trig2 5//超声波Trig2
- #define Echo2 6//超声波Echo2
- int Time=0;//高电平时间
- int X=0; //X是距离,单位厘米
- int X2=0; //X是距离,单位厘米
- long ran;//定义随机变量(1到4)
- int xleft=0;//红外感应左
- //int xzhong=0;//红外感应中
- int xreight=0;//红外感应右左
- void motor(int x,int y)//x=1是后退;x=2是前;x=3是左;x=4是右;y是转速
- {
- switch(x){
- case 1:
- digitalWrite(IN1,1);
- analogWrite(IN2,y);
- digitalWrite(IN3,0);
- analogWrite(IN4,y);
- break;
- case 2:
- digitalWrite(IN1,0);
- analogWrite(IN2,y);
- digitalWrite(IN3,1);
- analogWrite(IN4,y);
- break;
- case 3:
- digitalWrite(IN1,0);
- analogWrite(IN2,y);
- digitalWrite(IN3,0);
- analogWrite(IN4,y);
- break;
- case 4:
- digitalWrite(IN1,1);
- analogWrite(IN2,y);
- digitalWrite(IN3,1);
- analogWrite(IN4,y);
- break;
- }
- Serial.println("x=");
- Serial.println(x);
- }
- void loop() {
- csb();
- ydyd();
-
- }
- void setup() {
- Serial.begin(9600);
- pinMode(IN1,OUTPUT);
- pinMode(IN2,OUTPUT);
- pinMode(IN3,OUTPUT);
- pinMode(IN4,OUTPUT);
- pinMode(Trig,OUTPUT);//口是对超声波输出波形Trig
- pinMode(Echo,INPUT);//口是超声波反馈Echo
- pinMode(hN1,INPUT);//hN1口是1号红外检测
- //pinMode(hN2,INPUT);//hN2口是2号红外检测
- pinMode(hN3,INPUT);//hN3口是3号红外检测
- //randomSeed(analogRead(0));
- //attachInterrupt(0,back,RISING);//中断函数
- }
- /*void back()
- {
- motor(1,120);
- }*/
-
-
- void csb(){
- digitalWrite(Trig,LOW);//3口,输出低电平
- delayMicroseconds(2);//等待2微秒
- digitalWrite(Trig,HIGH);//3口,输出高电平
- delayMicroseconds(10);//等待10微秒,触发信号
- digitalWrite(Trig,LOW);//拉低电平
- Time=pulseIn(Echo,HIGH);//检测反馈的高电平时间
- X=Time/58;//计算距离
- digitalWrite(Trig2,LOW);//3口,输出低电平
- delayMicroseconds(2);//等待2微秒
- digitalWrite(Trig2,HIGH);//3口,输出高电平
- delayMicroseconds(10);//等待10微秒,触发信号
- digitalWrite(Trig2,LOW);//拉低电平
- Time=pulseIn(Echo2,HIGH);//检测反馈的高电平时间
- X2=Time/58;//计算距离
- }
- void ydyd(){
- xleft=digitalRead(hN1);
- //xzhong=digitalRead(hN2);
- xreight=digitalRead(hN3);
- if(X>=5)
- {
- motor(1,100);
- delay(1000);
- }
- else
- {
- if((xleft==1)&&(xreight==1))
- {
- // ran=random (2,5);
- motor(2,120);
-
-
- }
- if((xleft==0)&&(xreight==1))
- {
- motor(3,100);
- }
- if((xleft==1)&&(xreight==0))
- {
- motor(4,100);
- }
- if((xleft==0)&&(xreight==0))
- {
- digitalWrite(IN1,0);
- analogWrite(IN2,0);
- digitalWrite(IN3,0);
- analogWrite(IN4,0);
- }
- if(X2>=5)
- {
- motor(2,100);
- delay(1000);
- }
- }
- Serial.println("X=");
- Serial.println(X);
- Serial.println("x1=");
- Serial.println(xleft);
- Serial.println("xr=");
- Serial.println(xreight);
- }
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