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嗨，我正在尽我所能了解 C++ 和 OOP。我写了一些代码，当我把它全部放在我的主循环中时。我现在正在尝试整理它并制作我自己的简单库和类。

我的项目有一个连接到 Arduino 板的 8 LED 传感器阵列。我正在尝试读取光传感器的状态。我正在使用 QTRSensors 库，它有一个校准方法，当我实例化我的类时，我想从我的类中调用它。

目前我有以下代码。

标题

#ifndef SEDIMENTLOGGER_H
#define SEDIMENTLOGGER_H

#include <QTRSensors.h>
#include <Arduino.h>


#define NUM_SENSORS 8


class sedimentSensor
{
 public:
  QTRSensorsRC sensor1;//(unsigned char [8], int&, int&, int&);
  QTRSensorsRC sensor2;//(unsigned char [8], int&, int&, int&);

  sedimentSensor(); //default constructor
  ~sedimentSensor();
  void  calibrateSensors();
  unsigned int *SensorValues1(){return sensorValues1;};
  unsigned int *SensorValues2(){return sensorValues2;};
  int SampleDelay(){return sampleDelay;};
  int EmitterPin1();
  unsigned int Position1(){return position1;};
  void Position1(unsigned int value){position1 = value;};
  unsigned int Position2(){return position2;};
  void Position2(unsigned int value){position2 = value;};

 private:
  // Map pins to LED numbers
  // first LED array
  int led1;
  int led2;
  int led3;
  int led4;
  int led5;
  int led6;
  int led7;
  int led8;
  int emitterPin1;
  //second Array
  int led9;
  int led10;
  int led11;
  int led12;
  int led13;
  int led14;
  int led15;
  int led16;
  int emitterPin2;

  int  timeout; // waits for 2.5 seconds for sensor outputs to go low
  long sampleDelay; // 1 second
  int numSensors;

  unsigned int sensorValues1[];
  unsigned int sensorValues2[];

  unsigned int position1;
  unsigned int position2;
};
#endif

我对课堂实施的尝试

#include "sedimentLogger.h"
#include <Arduino.h>
#include <QTRSensors.h>

sedimentSensor::sedimentSensor() 
{
  //Constructor
  led1 = 24;
  led2 = 26;
  led3 = 28;
  led4 = 30;
  led5 = 32;
  led6 = 34;
  led7 = 36;
  led8 = 38;
  emitterPin1 = 22;
  //second Array
  led9 = 25;
  led10 = 27;
  led11 = 29;
  led12 = 31;
  led13 = 33;
  led14 = 35;
  led15 = 37;
  led16 = 39;
  emitterPin2 = 23;

  timeout = 2500; // waits for 2.5 seconds for sensor outputs to go low
  sampleDelay = 1000; // 1 second

  sensorValues1[NUM_SENSORS];  
  sensorValues2[NUM_SENSORS];
};

sedimentSensor::~sedimentSensor()
{ 
};

int sedimentSensor::EmitterPin1()
{return emitterPin1;};

void sedimentSensor::calibrateSensors()
{
  sensor1((unsigned char[]){led1,led2,led3,led4,led5,led6,led7,led8},numSensors,timeout,emitterPin1);
  sensor2((unsigned char[]) {led9,led10,led11,led12,led13,led14,led15,led16},numSensors,timeout,emitterPin2);


  unsigned int _delay = 500;
  delay(_delay);
  pinMode(13,OUTPUT);
  for(int i = 0; i<400; i++)
    {
      sensor1.calibrate();
      sensor2.calibrate();
    }
  digitalWrite(13,LOW);

  //TODO WRITE MAX AND MIN VALS TO FILE
  Serial.print("Array 1 Min :: ");
  for (int i = 0; i < NUM_SENSORS; i++)
  {
    Serial.print (sensor1.calibratedMinimumOn[i]);
    Serial.print(' ');
  }
  Serial.println();
  Serial.print("Array 2 Min :: ");
  for (int i = 0;i< NUM_SENSORS; i++)
  {
    Serial.print (sensor2.calibratedMinimumOn[i]);
    Serial.print(' ');
  }

  Serial.println();
  Serial.print("array 1 Max :: ");
  // print the calibration maximum values measured when emitters were on
  for (int i = 0; i < NUM_SENSORS; i++)
  {
    Serial.print(sensor1.calibratedMaximumOn[i]);
    Serial.print(' ');
  }
  Serial.println();
  Serial.print("array 2 Max :: ");
  // print the calibration maximum values measured when emitters were on
  for (int 
  i = 0; i < NUM_SENSORS; i++)
  {
    Serial.print(sensor2.calibratedMaximumOn[i]);
    Serial.print(' ');
  }

  Serial.println();
  Serial.println();
  delay(_delay); 
};

还有我的主要功能和循环

#include <QTRSensors.h>
#include <Arduino.h>

#include "sedimentLogger.h"
#include <Wire.h>
#include "/home/marrabld/Programming/Arduino/arduino-1.0/libraries/RTClib/RTClib.h"

sedimentSensor sedLog;//= sedimentSensor();

void setup()
{
  Serial.begin(9600);
  sedLog.calibrateSensors(); 
}

void loop()
{
  sedLog.Position1(sedLog.sensor1.readLine(sedLog.SensorValues1()));
  sedLog.Position2(sedLog.sensor2.readLine(sedLog.SensorValues2()));

  unsigned char i;
  for (i = 0; i < NUM_SENSORS; i++)
    {
      Serial.print(sedLog.SensorValues1()[i] * 10/10001);      
      Serial.print(' ');
    }
  Serial.println(sedLog.Position1());
  for (i=0;i < NUM_SENSORS; i++)
    {
      Serial.print(sedLog.SensorValues2()[i]*10/1001);
      Serial.print(' ');
    }
  Serial.print("  ");
  Serial.println(sedLog.Position2());
  delay(sedLog.SampleDelay());

  Serial.println(sedLog.SampleDelay());
  Serial.println(sedLog.EmitterPin1()); 
}

我收到以下错误

沉积物记录器.cpp：在成员函数“无效沉积物传感器：：校准传感器（）”中：沉积物记录器.cpp：47：102：错误：不匹配调用“（QTRSensorsRC）（无符号字符[8]，int＆，int＆，int＆）”沉积物Logger.cpp:48:108: 错误: 不匹配调用'(QTRSensorsRC) (unsigned char [8], int&, int&, int&)'</p>

我尝试了一些不同的变体，比如将传感器实例化放在我的沉积物传感器构造函数中，以及其他一堆没有运气的东西。

我将不胜感激任何帮助和建议让这个工作。我显然在这里也遗漏了一个概念，因此任何教练建议同样会有所帮助。

4

2 回答 2

3

似乎您正在尝试调用 and 的构造函数sensor1，sensor2但是在代码中它们已经被构造了。尝试使用他们的init功能：

sensor1.init(
    (unsigned char[]){led1,led2,led3,led4,led5,led6,led7,led8},
    numSensors,
    timeout,
    emitterPin1);

sensor2.init(
    (unsigned char[]){led9,led10,led11,led12,led13,led14,led15,led16},
    numSensors,
    timeout,
    emitterPin2);
于 2012-05-21T07:49:38.000 回答
1

我假设第 47 和 48 行是以下两行：

sensor1((unsigned char[]){led1,led2,led3,led4,led5,led6,led7,led8},numSensors,timeout,emitterPin1);
sensor2((unsigned char[]) {led9,led10,led11,led12,led13,led14,led15,led16},numSensors,timeout,emitterPin2);

问题是您尝试将对象称为函数。对象需要在构造函数中初始化，如下所示：

sedimentSensor::sedimentSensor() 
    : led1(24), led2(26), /* other variables needing initialization */
      sensor1(/*arguments*/), sensor2(/*arguments*/)
{
    /* .... */
}

为了使上述工作正常，您需要更改类成员变量声明的顺序，因为初始化成员变量的顺序与声明它们的顺序相同。换句话说，你应该把和的声明放在sensor1用于sensor2初始化它们的变量之后。

于 2012-05-21T08:00:40.367 回答