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Infrared remote control

#include <IRremote.h>  //包含红外库  关键点
int RECV_PIN = A4;     //端口声明
IRrecv irrecv(RECV_PIN);
decode_results results;  //结构声明
int on = 0;              //标志位
unsigned long last = millis();

long run_car = 0x00FF629D;     //按键CH
long back_car = 0x00FFA857;    //按键+
long left_car = 0x00FF22DD;    //按键<<
long right_car = 0x00FFC23D;   //按键>||
long stop_car = 0x00FF02FD;    //按键>>|
long left_turn = 0x00ffE01F;   //按键-
long right_turn = 0x00FF906F;  //按键EQ
//==============================
int Left_motor_go = 8;    //左电机前进(IN1)
int Left_motor_back = 9;  //左电机后退(IN2)

int Right_motor_go = 10;    // 右电机前进(IN3)
int Right_motor_back = 11;  // 右电机后退(IN4)

void setup() {
  //初始化电机驱动IO为输出方式
  pinMode(Left_motor_go, OUTPUT);     // PIN 8 (PWM)
  pinMode(Left_motor_back, OUTPUT);   // PIN 9 (PWM)
  pinMode(Right_motor_go, OUTPUT);    // PIN 10 (PWM)
  pinMode(Right_motor_back, OUTPUT);  // PIN 11 (PWM)
  pinMode(13, OUTPUT);                ////端口模式,输出
  Serial.begin(9600);                 //波特率9600
  irrecv.enableIRIn();                // Start the receiver
}
void run()  // 前进
{
  digitalWrite(Right_motor_go, HIGH);  // 右电机前进
  digitalWrite(Right_motor_back, LOW);
  //analogWrite(Right_motor_go,200);//PWM比例0~255调速,左右轮差异略增减
  //analogWrite(Right_motor_back,0);
  digitalWrite(Left_motor_go, LOW);  // 左电机前进
  digitalWrite(Left_motor_back, HIGH);
  //analogWrite(Left_motor_go,0);//PWM比例0~255调速,左右轮差异略增减
  //analogWrite(Left_motor_back,200);
  //delay(time * 100);   //执行时间,可以调整
}

void brake()  //刹车,停车
{
  digitalWrite(Right_motor_go, LOW);
  digitalWrite(Right_motor_back, LOW);
  digitalWrite(Left_motor_go, LOW);
  digitalWrite(Left_motor_back, LOW);
  //delay(time * 100);//执行时间,可以调整
}

void left()  //左转(左轮不动,右轮前进)
{
  digitalWrite(Right_motor_go, HIGH);  // 右电机前进
  digitalWrite(Right_motor_back, LOW);
  //analogWrite(Right_motor_go,200);
  //analogWrite(Right_motor_back,0);//PWM比例0~255调速
  digitalWrite(Left_motor_go, LOW);  //左轮后退
  digitalWrite(Left_motor_back, LOW);
  //analogWrite(Left_motor_go,0);
  //analogWrite(Left_motor_back,0);//PWM比例0~255调速
  //delay(time * 100);	//执行时间,可以调整
}

void spin_left()  //左转(左轮后退,右轮前进)
{
  digitalWrite(Right_motor_go, HIGH);  // 右电机前进
  digitalWrite(Right_motor_back, LOW);
  //analogWrite(Right_motor_go,200);
  //analogWrite(Right_motor_back,0);//PWM比例0~255调速
  digitalWrite(Left_motor_go, HIGH);  //左轮后退
  digitalWrite(Left_motor_back, LOW);
  //analogWrite(Left_motor_go,200);
  //analogWrite(Left_motor_back,0);//PWM比例0~255调速
  //delay(time * 100);	//执行时间,可以调整
}

void right()  //右转(右轮不动,左轮前进)
{
  digitalWrite(Right_motor_go, LOW);  //右电机后退
  digitalWrite(Right_motor_back, LOW);
  //analogWrite(Right_motor_go,0);
  //analogWrite(Right_motor_back,0);//PWM比例0~255调速
  digitalWrite(Left_motor_go, LOW);  //左电机前进
  digitalWrite(Left_motor_back, HIGH);
  //analogWrite(Left_motor_go,0);
  // analogWrite(Left_motor_back,200);//PWM比例0~255调速
  // delay(time * 100);	//执行时间,可以调整
}

void spin_right()  //右转(右轮后退,左轮前进)
{
  digitalWrite(Right_motor_go, LOW);  //右电机后退
  digitalWrite(Right_motor_back, HIGH);
  //analogWrite(Right_motor_go,0);
  //analogWrite(Right_motor_back,200);//PWM比例0~255调速
  digitalWrite(Left_motor_go, LOW);  //左电机前进
  digitalWrite(Left_motor_back, HIGH);
  //analogWrite(Left_motor_go,0);
  //analogWrite(Left_motor_back,200);//PWM比例0~255调速
  //delay(time * 100);	//执行时间,可以调整
}

void back()  //后退
{
  digitalWrite(Right_motor_go, LOW);  //右轮后退
  digitalWrite(Right_motor_back, HIGH);
  //analogWrite(Right_motor_go,0);
  //analogWrite(Right_motor_back,150);//PWM比例0~255调速
  digitalWrite(Left_motor_go, HIGH);  //左轮后退
  digitalWrite(Left_motor_back, LOW);
  //analogWrite(Left_motor_go,150);
  //analogWrite(Left_motor_back,0);//PWM比例0~255调速
  //delay(time * 100);     //执行时间,可以调整
}

void dump(decode_results *results) {
  int count = results->rawlen;
  if (results->decode_type == UNKNOWN) {
    //Serial.println("Could not decode message");
    brake();
  }
  //串口打印,调试时可以打开,实际运行中会影响反应速度,建议屏蔽
  /*
  else 
  {

    if (results->decode_type == NEC) 
    {
      Serial.print("Decoded NEC: ");
    } 
    else if (results->decode_type == SONY) 
    {
      Serial.print("Decoded SONY: ");
    } 
    else if (results->decode_type == RC5) 
    {
      Serial.print("Decoded RC5: ");
    } 
    else if (results->decode_type == RC6) 
    {
      Serial.print("Decoded RC6: ");
    }
    Serial.print(results->value, HEX);
    Serial.print(" (");
    Serial.print(results->bits, DEC);
    Serial.println(" bits)");
    
  }
  Serial.print("Raw (");
  Serial.print(count, DEC);
  Serial.print("): ");

  for (int i = 0; i < count; i++) 
  {
    if ((i % 2) == 1) 
    {
      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
    } 
    else  
    {
      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
    }
    Serial.print(" ");
  }
  Serial.println("");
*/
}

void loop() {
  if (irrecv.decode(&results))  //调用库函数:解码
  {
    // If it's been at least 1/4 second since the last
    // IR received, toggle the relay
    if (millis() - last > 250)  //确定接收到信号
    {
      on = !on;                           //标志位置反
      digitalWrite(13, on ? HIGH : LOW);  //板子上接收到信号闪烁一下led
      dump(&results);                     //解码红外信号
    }
    if (results.value == run_car)     //按键CH
      run();                          //前进
    if (results.value == back_car)    //按键+
      back();                         //后退
    if (results.value == left_car)    //按键<<
      left();                         //左转
    if (results.value == right_car)   //按键>||
      right();                        //右转
    if (results.value == stop_car)    //按键>>|
      brake();                        //停车
    if (results.value == left_turn)   //按键-
      spin_left();                    //左旋转
    if (results.value == right_turn)  //按键EQ
      spin_right();                   //右旋转
    last = millis();
    irrecv.resume();  // Receive the next value
  }
}