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我使用过温度、浊度和 pH 传感器。（使用 esp8266 和 arduino uno）

传感器的所有读数都显示在串行端口中。并非所有来自 Arduino 串口的数据都被 Thing speak 从传感器接收。这是代码

#include <SoftwareSerial.h>

#include <OneWire.h>

#include <达拉斯温度.h>

#define ONE_WIRE_BUS 2

单线单线（ONE_WIRE_BUS）；

达拉斯温度传感器（&oneWire）；

#define SensorPin A1

unsigned long int avgValue;

浮动 b;

int buf[10]，温度；

#定义 RX 3

#define TX 4

字符串 AP = "";

字符串 PASS = "";

字符串 API = "";

字符串主机 = "api.thingspeak.com";

字符串端口 = "80";

字符串字段1 =“字段1”；

字符串字段2 =“字段2”；

字符串字段3 =“字段3”；

int countTrueCommand;

整数计数时间命令；

布尔发现=假；

浮动 valSensor1;

浮动 valSensor2;

浮动 valSensor3;

SoftwareSerial esp8266(RX,TX);

无效设置（）

{

Serial.begin(9600);

pinMode(13,OUTPUT);

sensors.begin();    

esp8266.begin(115200);

sendCommand("AT",5,"OK");

sendCommand("AT+CWMODE=1",5,"OK");

sendCommand("AT+CWJAP=\""+ AP +"\",\""+ PASS +"\"",20,"OK");

}

无效循环（）

{

valSensor1 = getTemper();

valSensor2 = getTurbidity();

valSensor3 = getpH();

String getData1 = "GET /update?api_key="+ API +"&"+ field1 +"="+String(valSensor1);

String getData2 = "GET /update?api_key="+ API +"&"+ field2 +"="+String(valSensor2);

String getData3 = "GET /update?api_key="+ API +"&"+ field3 +"="+String(valSensor3);

sendCommand("AT+CIPMUX=1",5,"OK");
sendCommand("AT+CIPSTART=0,\"TCP\",\""+ HOST +"\","+ PORT,15,"OK");
sendCommand("AT+CIPSEND=0," +String(getData1.length()+4),4,">");
esp8266.println(getData1);//delay(1500);countTrueCommand++;
sendCommand("AT+CIPCLOSE=0",5,"OK");

sendCommand("AT+CIPMUX=1",5,"OK");
sendCommand("AT+CIPSTART=0,\"TCP\",\""+ HOST +"\","+ PORT,15,"OK");
sendCommand("AT+CIPSEND=0," +String(getData2.length()+4),4,">");
esp8266.println(getData2);//delay(1500);countTrueCommand++;
sendCommand("AT+CIPCLOSE=0",5,"OK");

sendCommand("AT+CIPMUX=1",5,"OK");
sendCommand("AT+CIPSTART=0,\"TCP\",\""+ HOST +"\","+ PORT,15,"OK");
sendCommand("AT+CIPSEND=0," +String(getData3.length()+4),4,">");
esp8266.println(getData3);//delay(1500);countTrueCommand++;
sendCommand("AT+CIPCLOSE=0",5,"OK");

}

浮动 getTemper()

{

sensors.requestTemperatures(); 

//print the temperature in Celsius

Serial.println();

Serial.print("Temperature: ");

int temperature=sensors.getTempCByIndex(0);

Serial.print(temperature);

//Serial.print((char)176);//shows degrees character

Serial.print("C  |  ");

//delay(500);

return temperature;

}

浮动获取浊度（）

{

int sensorValue = analogRead(A0);// read the input on analog pin 0:

float voltt = sensorValue * (5.0 / 1024.0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V):

Serial.print("Turbidity in volts: ");

Serial.print(voltt); // print out the value you read:

Serial.print("  |  ");

//delay(500);

return voltt;

}

浮动 getpH()

{

for(int i=0;i<10;i++)       //Get 10 sample value from the sensor for smooth the value

{ 

    buf[i]=analogRead(SensorPin);

    //delay(10);
}

for(int i=0;i<9;i++)        //sort the analog from small to large
{
        for(int j=i+1;j<10;j++)
    {
            if(buf[i]>buf[j])
            {
                temp=buf[i];
                buf[i]=buf[j];
                buf[j]=temp;
            }
    }
}
avgValue=0;
for(int i=2;i<8;i++)                      //take the average value of 6 center sample
        avgValue+=buf[i];
float phValue=(float)avgValue*5.0/1024/6; //convert the analog into millivolt
phValue=3.5*phValue;                      //convert the millivolt into pH value
Serial.print("pH:");  
Serial.print(phValue,2);
Serial.println(" ");
digitalWrite(13, HIGH);       
//delay(800);
digitalWrite(13, LOW);
return phValue;

}

void sendCommand（字符串命令，int maxTime，char readReplay[]）

{

Serial.print(countTrueCommand);

Serial.print(". at command => ");

Serial.print(command);

Serial.print(" ");

while(countTimeCommand < (maxTime*1))

{

        esp8266.println(command);//at+cipsend

        if(esp8266.find(readReplay))//ok

        {

            found = true;

            break;
        }

        countTimeCommand++;
}
if(found == true)
{
        Serial.println("OYI");
        countTrueCommand++;
        countTimeCommand = 0;
}
if(found == false)
{
        Serial.println("Fail");
        countTrueCommand = 0;
        countTimeCommand = 0;
}
found = false;

}

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