求助arduino用超声波手势控制音乐播放

烧写以下代码到UNO：

const int EchoPin = 2//超声波信号输入

const int TrigPin = 3/尺伍袭/超声波控制信号输出

int currDist = 0

void setup(){

pinMode(EchoPin, INPUT)

for (int pinindex = 3pinindex <8pinindex++) {

pinMode(pinindex, OUTPUT)// set pins 3 to 10 as outputs

}

pinMode(A0,OUTPUT)

pinMode(A1,OUTPUT)

pinMode(A2,OUTPUT)

pinMode(A3,OUTPUT)

digitalWrite(A0,LOW)

digitalWrite(A1,LOW)

digitalWrite(A2,LOW)

digitalWrite(A3,LOW)

Serial.begin(9600)

}

void loop(){

currDist = MeasuringDistance()//读取前端距离

//Serial.println(currDist)

if(currDist >25){

}

//power开关看个人需要，这里没有启用

//else if(currDist <8){

// mpower()

// }

else if(currDist <7){

mpause()

}

else if(currDist <15){

mnext()

}

else if(currDist <25){

mprev()

}

}

long MeasuringDistance() {

long duration

digitalWrite(TrigPin, LOW)

delayMicroseconds(2)

digitalWrite(TrigPin, HIGH)

delayMicroseconds(10)

digitalWrite(TrigPin, LOW)

duration = pulseIn(EchoPin, HIGH)

return duration / 29 /橘好 2

}

//mplay播放

void mplay() {

digitalWrite(A0, HIGH)

delay(100)

digitalWrite(A0, LOW)

Serial.println("mplay")

}

//mprev上一首

void mprev() {

digitalWrite(A1, HIGH)

delay(1000)

digitalWrite(A1, LOW)

Serial.println("mprev")

}

//mnext下一首

void mnext() {

digitalWrite(A2, HIGH)

//return

delay(1000)

digitalWrite(A2, LOW)

Serial.println("mnext")

}

//mpause暂停

void mpause() {

digitalWrite(A0, HIGH)

delay(1000)

digitalWrite(A0, LOW)

Serial.println("mpause")

}

//mpower

//void mpower() {

// digitalWrite(A3, HIGH)

// delay(500)

//digitalWrite(A3, LOW)

// Serial.println("陵兄mpower")

//}

#include <Wire.h>

#include "MPU6050.h"

#include <Ultrasonic.h>

#include "I2Cdev.h"

#define LED_PIN 13 //指示灯

//MPU6050陀螺仪

//MPU6050 my_gyro(3)

//使用ax, rx来获取二轮车姿态

//x轴加速度 &偏转角

short ax,rx

//short = int16_t

//缺陪HC-SRO4超声波传感器

//TRIG_PIN &ECHO_PIN

Ultrasonic my_hcsr(5,6)

float distance

int startTime

void setup() {

pinMode(LED_PIN,LOW)

//加入I2C总线

Wire.begin()

//初始化串口通信频道

Serial.begin(9600)

//初始化模块

//my_gyro.initialize()

my_hcsr.measure()

startTime = millis()

//初始化完成后指示灯常亮

pinMode(LED_PIN,HIGH)

}

void loop() {

//获取伏消蠢车身姿态

//ax=my_gyro.getAccelerationX()

//rx=my_gyro.getRotationX()

//获取前方障碍物距离

my_hcsr.measure()

distance=millis()-startTime

distance/桥猛=1000

distance=my_hcsr.get_cm()

Serial.print(distance,3)

Serial.println("cm")

delay(50)

}

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