CatYou-远程宠物投食器

				
					#include <Wire.h>//Use Wire library
#include <Adafruit_GFX.h>//Use Adafruit_GFX.h library
#include <Adafruit_SSD1306.h>//Use Adafruit_SSD1306.h library
#include "dht11.h"
#include <MsTimer2.h> //Time-clock Library 
#include <Servo.h>  //Arduino IDE Servo library

//define Servo inout
#Define Servo_Pin      5                   
//press value pin
int fsrPin = 14;     // A0 port
int fsrReading;

//display value pin
const uint8_t OLED_CS = 9;
//Define OLED 12864 CS port to arduino 9
const uint8_t OLED_DC = 10; 
//Define OLED 12864 DC port to arduino 10
const uint8_t OLED_RESET = 11;
//Define OLED 12864 RES port to arduino 11
const uint8_t OLED_MOSI = 12;
//Define OLED 12864 D1(MOST) port to arduino 12
const uint8_t  OLED_CLK = 13;
//Define OLED 12864 D0(CLK) port to arduino 13
Adafruit_SSD1306 display(OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);

//movement test
int Move_Sensor_pin = 8;

//Temperature
int incomingByte = 0;                    
// Receive data byte
String inputString = "";                 
// Store  data byte
boolean newLineReceived = false;         
// Last data end flag
boolean startBit  = false;               
//protocol Start sign
String returntemp = "";           
//Store return value
char temp[100] = {0};

//motuo
Servo myservo;      
//Define the servo object myservo
/*printfFormat string initialization*/
int serial_putc( char c, struct __file * )
{
  Serial.write( c );
  return c;
}
void printf_begin(void)
{
  fdevopen( &serial_putc, 0 );
}
以下代码块是主要部分，每个子函数的注释说明了各个算法模块的功能以及逻辑。

void setup(void) {
  //common
  Serial.begin(9600);
  
  //movement
  pinMode(Move_Sensor_pin,INPUT);
  //Set the infrared interface of the human body to the input state

  //display
  display.begin(SSD1306_SWITCHCAPVCC);
  //initialization OLED 12864
  display.clearDisplay();   // Clean screen
  display.setTextSize(2);   //Set word font to 2
  display.setTextColor(WHITE);//Set word color to white
  display.setCursor(0,0);   //Position the cursor in column 0, row 0
  display.print("  SMU-IoT");//Display characters
  display.setCursor(0,16); 
  display.print("Team03");
  display.setCursor(0,32); 
  display.print("CatYou"); 
  display.setCursor(0,48); 
  display.print("0ighting"); 
  display.display();//Display

  //Temperature
  Wire.begin(0);
  //Wire.begin();         
  //join i2c bus (address optional for master)

  //motuo
  printf_begin();
  //Set the servo control pin to 5
  myservo.attach(Servo_Pin);
  //Initialize the servo position 0
  myservo.write(0);
}
uint16_t result;
float temp1;

void loop(void) {
  Serial.print("run");
  delay(500);
  fsrReading = analogRead(fsrPin); //heavy
  delay(2000);
  display.clearDisplay();
  display.setCursor(0,0); //Position the cursor in column 0, row 0
  display.print("  SMU-IoT");//Display characters
  display.setCursor(0,16); 
  display.print("presre "); display.print(fsrReading);
  Serial.print(fsrReading);
  
  Wire.beginTransmission(0x5A);
  Wire.write(0x07);                // sends instruction byte
  Wire.endTransmission(false);     // stop transmitting
  Wire.requestFrom(0x5A, 3);   //Send data n-bytes read
  result = Wire.read(); //Receive DATA
  result |= Wire.read() << 8; //Receive DATA
  uint8_t pec = Wire.read();
  temp1 =  result*0.02-273.15;  //Temperature value conversion
  Serial.print(temp1);

  float fTemp = temp1;
  display.setCursor(0,32); 
  display.print("Temp "); 
  display.print(fTemp);
  display.display();

  while (newLineReceived)// and digitalRead(Move_Sensor_pin)>0
  { 
    Serial.print("run1");
    delay(500);
    while(inputString.indexOf("SERVO") == 1)
      //If the string value "SERVO" to be retrieved appears
       {//$SERVO,90# 
       int i = inputString.indexOf("#",7);  
      //Retrieve the position of the character string "#" from the received data starting with 7
       if(i > 0)        
         //If retrieved
       {String temp = inputString.substring(7, i);  
         //Extract the characters between the specified subscript 7 to i in the string and assign them to temp
         int Pos = temp.toInt();
         //Convert string temp to integer
         if(Pos >=0 && Pos <= 180)
           //If the angle of the steering gear to be rotated in the received agreement is within 0-180
         {myservo.write(Pos);
           returntemp = "$SERVO,0,#"; 
           //Return matching success
          Serial.print(returntemp);
          //Return protocol packet     
          inputString = "";   
          // clear the string
          newLineReceived = false;}
         else
         { returntemp = "$SERVO,1,#";  
           //Return match failed
            Serial.print(returntemp); 
            //Return protocol packet      
            inputString = "";   
            // clear the string
            newLineReceived = false;
            break;    
         }
       }
       }

        if(inputString.indexOf("SERVO") == -1)  
          //If the string value "TH" to be retrieved does not appear
       {    
           break;}
       }

    while(inputString.indexOf("TH") == 1){
    //int fTemp = (float)DHT11.temperature;
    //fTempAssigned to the temperature value read in floating point type
       //int  weight = DHT11.humidity;
       //iHumidity Assign value to the humidity value read
       Serial.print("run2");
      delay(500);
        fsrReading = analogRead(fsrPin); //heavy
        Wire.beginTransmission(0x5A);
        Wire.write(0x07);                // sends instruction byte
        Wire.endTransmission(false);     // stop transmitting
        Wire.requestFrom(0x5A, 3);   //Send data n-bytes read
        result = Wire.read();        //Receive DATA
        result |= Wire.read() << 8;  //Receive DATA
        uint8_t pec = Wire.read();
        temp1 =  result*0.02-273.15;  //Temperature value conversion
        float fTemp = temp1;
        float weight=fsrReading;  //weightAssigned to the weight read
        Serial.println(fsrReading);
        
       //Parsing switch
       // $TH,1#
       
       memset(temp, 0x00, sizeof(temp));
       //Empty the temp array
       dtostrf(fTemp, 3, 1, temp);  // Equivalent to %3.2f
       String sTemp = temp;
       //The string in the array temp is assigned to sTemp
       String sWt =  "";    
       sWt += weight;
       returntemp = "$TH,T" + sTemp + ",H" + sWt + "#";
       Serial.print(returntemp); //Return protocol packet  
       inputString = "";   // clear the string
       newLineReceived = false;
      
       if(inputString.indexOf("TH") == -1)
         //If the string value "TH" to be retrieved does not appear
       {
       break;} 
      }
}

void serialEvent()
{
  while (Serial.available()) 
  {    
    incomingByte = Serial.read();
    //Read byte by byte, the next sentence is to put the read into the string array to form a completed data packet
    if(incomingByte == '$') 
      //If the serial port receives data, it enters the loop
    {
      startBit= true;
      //If the incoming byte is'$', start reading
    }
    if(startBit == true)
    {
       inputString += (char) incomingByte;     
      // The full-duplex serial port does not need to add a delay below, and half-duplex has to be added
    }  
    if (incomingByte == '#') 
    {
       newLineReceived = true;
      //If the incoming byte is'#', the reading ends
       startBit = false;
    }
  }
}