ช่วยดูโค้ดให้หน่อยได้ไหมครับ

เพิ่งหัดเล่นนะครับ ไม่มีความรู้ทางนี้เลย เอาข้อมูลจากหลายๆ ที่มารวมกัน

เข้าเรื่องเลยนะครับ ผมจะทำตัววัดอุณหภูมิและความชื้น โดยใช้ DS18B20 วัดอุณหภูมิ และใช้ DHT22 วัดความชื้น

แต่ตอนนี้ติดปัญหาคือมันไม่แสดงค่าความชื้นออกจอLCD นะครับ แต่ค่าอุณหภูมิแสดง โดยขา DHT22 ต่อเข้ากับขา 11 

โค้ดนี้อาจไม่ถูกต้องตามหลักมากนัก อันไหนพอเอาออกได้ แนะนำด้วยนะครับ

อันนี้โค้ดครับ

//Libraries

 

//Humidity

#include <dht.h>

#include <OneWire.h>

#include <Wire.h> 

#define ONE_WIRE_BUS 6 

#include <LiquidCrystal_I2C.h>  // initialize the library with the numbers of the interface pins

#include <DallasTemperature.h>

dht DHT;

#define DHT22_PIN 11

 

 

#define DHTPIN 11     // what pin we're connected to 11

#define DHTTYPE DHT22   // DHT 22  (AM2302)DHT dht(DHTPIN, DHTTYPE);

#define DHT22_PIN 11     // what pin we're connected to 11

#define DHT11PIN 11 //dht11 signal pin connected to 11

#define DHT21PIN 11

#define DHT22PIN 11

 

//define variables for temp data

  float h, t;

 

  

 // Uncomment whatever type you're using!

//#define DHTTYPE DHT11   // DHT 11 

  #define DHTTYPE DHT22   // DHT 22  (AM2302)

//#define DHTTYPE DHT21   // DHT 21 (AM2301)

 

 // Connect pin 1 (on the left) of the sensor to +5V

// Connect pin 2 of the sensor to whatever your DHTPIN is 11

// Connect pin 4 (on the right) of the sensor to GROUND

// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

 

const int dhtPin = 11; //Data pin of DHT-22 to Arduino digital pin 11

//define DHT22_PIN 11

 

 

 

OneWire oneWire(ONE_WIRE_BUS);

DallasTemperature sensors(&oneWire);

LiquidCrystal_I2C lcd(0x27,16,2);   // set the LCD address to 0x27 for a 16 chars and 2 line display

 

 

 

//Variables

 

 

 

float cswpin;

float hutarget;

int rept = 0;

int rl=0;

int heater = 8;

int huter =5;

int motor = 9;

int motorf = 10;

int hum = 11;

 

 

void setup()

{

lcd.init();   // initialize the lcd 

// lcd.begin (20,4); //  <

   lcd.begin (16,2); // set up the LCD's number of columns and rows: 

 

byte tfor[8] = {

  B01101,

  B01111,

  B00001,

  B10001,

  B10101,

  B10101,

  B11011,

  B11011

};

byte tkok[8] = {

  B00000,

  B00000,

  B00000,

  B01110,

  B10001,

  B01001,

  B01001,

  B01001

};

byte ti[8] = {

  B10110,

  B01010,

  B00010,

  B00010,

  B00010,

  B00010,

  B00010,

  B00011

};

byte tkorkai[8] = {

  B00010,

  B00010,

  B00000,

  B11010,

  B01010,

  B01010,

  B01010,

  B01110

};

byte b[8] = {

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111,

  B11111

};

byte v1[8] = {

  B00000,

  B00000,

  B00000,

  B10001,

  B10001,

  B10001,

  B01010,

  B00100

};

byte v2[8] = {

  B00000,

  B00000,

  B00000,

  B00100,

  B01100,

  B00100,

  B00100,

  B10101

};

 

lcd.setBacklight(HIGH);

lcd.clear();

lcd.createChar(0, tfor);

lcd.createChar(1, tkok);

lcd.createChar(2, ti);

lcd.createChar(3, tkorkai);

lcd.createChar(4, b);

lcd.createChar(5, v1);

lcd.createChar(6, v2);

 

 lcd.setCursor(4,0); 

 lcd.print("Loading...");

 lcd.setCursor(0,1); 

 lcd.print("Loading...");

 

for(int n = 0; n < 16; n++)

  {

    lcd.setCursor(n,1);

    lcd.write(4);

    delay(200);

  }

 lcd.clear();

 

 lcd.setCursor(4,0); 

 lcd.write(0);

 lcd.write(1);

 lcd.write(2);

 lcd.write(3);

 lcd.print(" v1.0");

 

 

  pinMode(heater, OUTPUT);      // sets the digital pin as output

  pinMode(huter, OUTPUT); 

  pinMode(motor, OUTPUT);

  pinMode(motorf, OUTPUT);

  pinMode(7, INPUT_PULLUP);

  digitalWrite(heater, HIGH);  

  digitalWrite(huter, HIGH); 

sensors.begin();

 

  lcd.setBacklight(LOW);      // Backlight off

  delay(100);

  lcd.setBacklight(HIGH);     // Backlight on

  delay(100);

    lcd.setBacklight(LOW);      // Backlight off

  delay(100);

  lcd.setBacklight(HIGH);     // Backlight on

  delay(100);

    lcd.setBacklight(LOW);      // Backlight off

  delay(100);

  lcd.setBacklight(HIGH);     // Backlight on

  delay(100);

    lcd.setBacklight(LOW);      // Backlight off

  delay(100);

  lcd.setBacklight(HIGH);     // Backlight on

  delay(100);

    lcd.setBacklight(LOW);      // Backlight off

  delay(100);

  lcd.setBacklight(HIGH);     // Backlight on

  delay(100);

 

lcd.clear();

}

 

 

void loop()

{

    Serial.println("Failed to read from DHT"); 

    delay(2000);

 

 lcd.setCursor(0,0); // set the cursor to column 0, line 0

                     // (note: line 1 is the second row, since counting begins with 0):

 

 lcd.write(0);

 lcd.write(1);

 lcd.write(2);

 lcd.write(3);

 lcd.write(5);

 lcd.write(6);

  rept++;

  if (rept>100)

  {

    if (rl==1)

    {rl=0; digitalWrite(motorf, HIGH); delay(2000); rept=0; digitalWrite(motorf, LOW);}

 

  else {rl=1; digitalWrite(motor, HIGH); delay(2000); rept=0; digitalWrite(motor, LOW);}

  }

  if (digitalRead(7) == 1) { cswpin=37.6; hutarget=60; } else{cswpin=36.9; hutarget=72.5;} //cswpin=36.9;37.6

  sensors.requestTemperatures(); // Send the command to get temperatures

 

  

 //Display 

  lcd.setCursor(9,0);

  lcd.print("TG=");

  lcd.print(cswpin);

  

  lcd.setCursor(0,1);

  lcd.print("TM=");

  sensors.requestTemperatures();

  lcd.print(sensors.getTempCByIndex(0));

 

  lcd.setCursor(9,1);

  int err;

  float humi; 

  humi=(DHT.humidity,1);

  lcd.print("H=");

  lcd.print(humi);  //แสดงข้อความออกจอ

 

  if (sensors.getTempCByIndex(0)>cswpin){digitalWrite(heater, LOW);}

  if (sensors.getTempCByIndex(0)<(cswpin-0.1)){digitalWrite(heater, HIGH);}

  if (humi>hutarget){digitalWrite(huter, LOW);}

  if (humi<hutarget){digitalWrite(huter, HIGH);}

}