'dht' does not name a type help please

bayurbr · July 19, 2022, 5:19pm

I can't find the problem, originally it's a normal program with my friend's pc
#include <EEPROM.h>
#include <Wire.h>
#include <LCD.h>
#include <LiquidCrystal_I2C.h>
#include <SoftwareSerial.h>
#include <dht.h>
#include <Keypad.h>

dht DHT;
#define DHT22_PIN 12
struct
{
uint32_t total;
uint32_t ok;
uint32_t crc_error;
uint32_t time_out;
uint32_t connect;
uint32_t ack_l;
uint32_t ack_h;
uint32_t unknown;
} stat = { 0,0,0,0,0,0,0,0};

SoftwareSerial sim(2, 3);

#define I2C_ADDR 0x3F // <<----- Add your address here. Find it from I2C Scanner
#define BACKLIGHT_PIN 3
#define En_pin 2
#define Rw_pin 1
#define Rs_pin 0
#define D4_pin 4
#define D5_pin 5
#define D6_pin 6
#define D7_pin 7
LiquidCrystal_I2C lcd(I2C_ADDR,En_pin,Rw_pin,Rs_pin,D4_pin,D5_pin,D6_pin,D7_pin);

const byte ROWS = 4; //four rows
const byte COLS = 4; //four columns
//define the cymbols on the buttons of the keypads
char hexaKeys[ROWS][COLS] = {
{'A','3','2','1'},
{'B','6','5','4'},
{'C','9','8','7'},
{'D','#','0','.'}
};
byte rowPins[ROWS] = {8, 9, 10, 11}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {7, 6, 5, 4}; //connect to the column pinouts of the keypad

//initialize an instance of class NewKeypad
Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

float suhu = 0.0f ;

//===============================> data batasan <=====================//

union data {
float dataF;
byte dataB[10];
} lembap_temp , suhu_temp ;

void writeLembap( float data ){
lembap_temp.dataF = data ;
for( int i = 0 ; i < 10 ; i++ ){
EEPROM.write( i , int(lembap_temp.dataB[i]) );
}
}

void writeSuhu( float data ){
suhu_temp.dataF = data ;
int count = 0 ;
for( int i = 20 ; i < 30 ; i++ ){
EEPROM.write( i , int(suhu_temp.dataB[count]) );
count++ ;
}
}

float readLembap(){
for( int i = 0 ; i < 10 ; i++ ){
lembap_temp.dataB[i] = byte(EEPROM.read( i ));
}
return lembap_temp.dataF ;
}

float readSuhu(){
int count = 0 ;
for( int i = 20 ; i < 30 ; i++ ){
suhu_temp.dataB[count] = byte(EEPROM.read( i ));
count++;
}
return suhu_temp.dataF ;
}
//====================================================================//

//========================================================//
String readSimm900A(){
String str = "" ;
while(sim.available()){
str += char(sim.read());
delay(5);
}
return str ;
}

String sendATComm( String msg ){
sim.print(msg);
sim.write(13);

Serial.print(msg);
Serial.write(13);
}

int levelair = 0;

void sendSms( bool isTest , bool isLembap){

sim.print("AT+CMGF=1");
sim.write(13);
delay(1000); 

sim.print("AT+CMGS=");
sim.write(34);
sim.print("082231348593"); //========================> ganti nomor hp
sim.write(34);
sim.write(13);
delay(2000);
if(isTest)
   sim.print("Test SMS");
else{
  if( isLembap ){
       sim.print("Tingkat Kelembapan naik, nilai kelembapan:");
       sim.print(DHT.humidity );
       sim.print("% ");
  }else{
       sim.print("Tingkat Temperatur naik, nilai Suhu:");
       sim.print(DHT.temperature);
       sim.print("*C");
       
  }
  
}
delay(2000);
sim.write(26);
String msg = readSimm900A() ;
while( msg.length() == 0 ){
  msg = readSimm900A() ;
  delay(100);
}
Serial.println(msg);

}

void tesConnectWaveComm(){
//=================> sim900A <===========================//
lcd.clear();
lcd.setCursor(0,0);
lcd.print("access sim900a");
unsigned long tm = millis();
while( true ){

     String msg = readSimm900A();
         
     if( msg.indexOf("OK") > -1 ){
            break ; 
     }
        
     if((millis()-tm) > 1000 ){
             tm = millis();
             sim.print("AT+CMGF=1");
             sim.write(13); 
             Serial.println("at-cmgf");
     }
          
          
}
lcd.setCursor(0,1);
lcd.print("selesai");

}
//========================================================//

void setup()
{

Serial.begin(9600);
sim.begin(9600);

lcd.begin (16,2); // <<----- My LCD was 16x2
lcd.setBacklightPin(BACKLIGHT_PIN,POSITIVE);
lcd.setBacklight(HIGH);
}

unsigned long tm = millis();
//========================================> parameter pengiriman data .
int countSendData_lembap = 0 ;
int countSendData_suhu = 0 ;

//========================================> parameter ketika suhu naik lagi .
float oldTemp = 0 ;
bool isAlreadySendSmsTwice = false ;

void loop()
{
//================================> baca sensor suhu
DHT.read22(12);
float data = analogRead(A1);
data = (data*5000)/1024 ;
suhu = data / 10 ;
//==============================> tampilkan data kelembapan dan suhu .
if( (millis()-tm) > 1000 ){
tm = millis();
showData();
Serial.println("lcd show");
}

//========================================> chek tombol keypad .
//========================================> saat ditekan akan mengaktifkan fungsi tertentu .
char customKey = customKeypad.getKey();
if( customKey ){
if( customKey == 'A' ){
Serial.println("button A");
saveDataLembap();
}
else if( customKey == 'B' ){
Serial.println("button A");
saveDataSuhu();
}
else if( customKey == '1' ){
tesConnectWaveComm();
}
else if( customKey == '2' ){
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Tes SMS");
sendSms(true,false);
}
else if( customKey == '3' ){
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Tes SMS");
lcd.setCursor(0,1);
lcd.print("lembap");
sendSms(false,false);
}
}

//=====================================> chek apakah dht melewati batas .
if(
(DHT.temperature > readSuhu())
)
{
//=====================================> chek apakah belum mengirim data sms .
if( countSendData_suhu == 0 ){
//===================================> set untuk delay penngecekan di lakukan 3 detik kemudian .
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Suhu");
lcd.setCursor(0,1);
lcd.print("naik, suhu:");
lcd.print(DHT.temperature);
lcd.print("*C");
sendSms(false,false);
countSendData_suhu++ ;
oldTemp = DHT.temperature ;
}
}else{
countSendData_suhu = 0 ;
oldTemp = 0 ;
}

if( countSendData_suhu > 0 ){
if( DHT.temperature > (oldTemp+3) ){
oldTemp = DHT.temperature ;
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Suhu");
lcd.setCursor(0,1);
lcd.print("naik, suhu:");
lcd.print(DHT.temperature);
lcd.print("*C");
delay(1000);
sendSms(false,false);
}
}

if(
(DHT.humidity > readLembap())
)
{
//=====================================> chek apakah belum mengirim data sms .
if( countSendData_lembap == 0 ){
//===================================> set untuk delay penngecekan di lakukan 3 detik kemudian .
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Kelembapan");
lcd.setCursor(0,1);
lcd.print("naik, kelembapan:");
lcd.print(DHT.humidity );
lcd.print("% ");
sendSms(false,true);
countSendData_lembap++ ;
}
}else{
countSendData_lembap = 0 ;
}

}

//=================================================================> prosedure untuk smpan data kelembapan .
void saveDataLembap(){
unsigned long tmlcd = millis();
String keyPad = "" ;
bool exitNow = false ;
Serial.println("enter lembap mode");
while(!exitNow){

 char customKey = customKeypad.getKey();
 if( customKey ){
    if( customKey == 'A' ){
       char buff[keyPad.length()] ;
       keyPad.toCharArray( buff , keyPad.length() + 1);
       float temp = atof(buff);
       writeLembap( temp );
       
       lcd.clear();
       lcd.setCursor(0,0);
       lcd.print("Data Disimpan");
       lcd.setCursor(0,1);
       lcd.print(readLembap());
       lcd.print(" %");
       delay(2000);
       
       keyPad = "" ;
       
    }
    else if( customKey == 'B' ){
      keyPad = "" ;
    }
    else if( customKey == 'D' ){
      exitNow = true ;
      softwareReset();
    }
    else{
       keyPad +=  customKey ;
    }
 }
  
 if( (millis()-tmlcd) > 500 ){
    tmlcd = millis();
    
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Lama:");
    lcd.print(readLembap());
    lcd.print(" %");
    lcd.setCursor(0,1);
    lcd.print("Baru:");
    lcd.print(keyPad);
    lcd.print(" %");
 }

}
}

//=================================================================> prosedure untuk smpan data suhu .
void saveDataSuhu(){
unsigned long tmlcd = millis();
String keyPad = "" ;
bool exitNowtrue = false ;
Serial.println("enter suhu mode");
while(!exitNowtrue){

 char customKey = customKeypad.getKey();
 if( customKey ){
    if( customKey == 'A' ){
       char buff[keyPad.length()] ;
       keyPad.toCharArray( buff , keyPad.length() + 1);
       float temp = atof(buff);
       writeSuhu( temp );
       
       lcd.clear();
       lcd.setCursor(0,0);
       lcd.print("Data Disimpan");
       lcd.setCursor(0,1);
       lcd.print(readSuhu());
       lcd.print(" *C");
       delay(2000);
       
       keyPad = "" ;
       
    }
    else if( customKey == 'B' ){
      keyPad = "" ;
    }
    else if( customKey == 'D' ){
      exitNowtrue = true ;
      softwareReset();
    }
    else{
       keyPad +=  customKey ;
    }
 }
  
 if( (millis()-tmlcd) > 800 ){
    tmlcd = millis();
    
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Lama:");
    lcd.print(readSuhu());
    lcd.print(" *C");
    lcd.setCursor(0,1);
    lcd.print("Baru:");
    lcd.print(keyPad);
    lcd.print(" *C");
 }

}
}

void showData(){
//===============================================> tampilkan status pada lcd .
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Kelembapan:");
lcd.print(DHT.humidity,0);
lcd.print("%");
lcd.setCursor(0,1);
lcd.print("Suhu:");
lcd.print(DHT.temperature);
lcd.print(" *C");

lcd.setCursor(15,0); 
if( DHT.humidity > readLembap() ){
  lcd.print("1");
}else{
  lcd.print("0"); 
}

lcd.setCursor(15,1); 
if( DHT.temperature > readSuhu() ){
  lcd.print("1");
}else{
  lcd.print("0"); 
}

}

//=======================================> fungsi untuk membaca pesan dari serial <=================================================//
String readCompMessage(){
String buff = "" ;
while( Serial.available() > 0 ){
char chr = char(Serial.read());
buff += chr;
delay(3);
}
return buff ;
}

//=================================================================================================================================//

//=======================> reset code <==============================================================================================//
void softwareReset(){
asm volatile("jmp 0");
}
//=================================================================================================================================//
Error code
Arduino: 1.8.19 (Windows 10), Board: "Arduino Uno"

In file included from D:\SKRIPSI\COBA\COBA.ino:3:0:

C:\Program Files (x86)\Arduino\libraries\i2c_lcd/LCD.h:421:44: error: 'prog_uchar' does not name a type; did you mean 'getchar'?

void createChar(uint8_t location, const prog_uchar charmap[]);

                                        ^~~~~~~~~~

                                        getchar

COBA:9:1: error: 'dht' does not name a type

dht DHT;

^~~

D:\SKRIPSI\COBA\COBA.ino: In function 'void sendSms(bool, bool)':

COBA:146:25: error: expected primary-expression before '.' token

        sim.print(DHT.humidity );

                     ^

COBA:150:25: error: expected primary-expression before '.' token

        sim.print(DHT.temperature);

                     ^

D:\SKRIPSI\COBA\COBA.ino: In function 'void tesConnectWaveComm()':

COBA:169:5: error: 'lcd' was not declared in this scope

 lcd.clear();

 ^~~

D:\SKRIPSI\COBA\COBA.ino: In function 'void setup()':

COBA:206:3: error: 'lcd' was not declared in this scope

lcd.begin (16,2); // <<----- My LCD was 16x2

^~~

D:\SKRIPSI\COBA\COBA.ino: In function 'void loop()':

COBA:224:6: error: expected unqualified-id before '.' token

DHT.read22(12);

COBA:251:9: error: 'lcd' was not declared in this scope

Multiple libraries were found for "Adafruit_Sensor.h"

     lcd.clear();

Used: C:\Program Files (x86)\Arduino\libraries\Adafruit_Sensor

^~~

Not used: C:\Program Files (x86)\Arduino\libraries\Adafruit_Sensor1

COBA:257:9: error: 'lcd' was not declared in this scope

     lcd.clear();

     ^~~

COBA:270:14: error: expected primary-expression before '.' token

      (DHT.temperature > readSuhu())

          ^

COBA:276:11: error: 'lcd' was not declared in this scope

       lcd.clear();

       ^~~

COBA:281:24: error: expected primary-expression before '.' token

       lcd.print(DHT.temperature);

                    ^

COBA:285:24: error: expected primary-expression before '.' token

       oldTemp = DHT.temperature ;

                    ^

COBA:294:14: error: expected primary-expression before '.' token

   if( DHT.temperature > (oldTemp+3) ){

          ^

COBA:295:22: error: expected primary-expression before '.' token

     oldTemp = DHT.temperature ;

                  ^

COBA:296:9: error: 'lcd' was not declared in this scope

     lcd.clear();

     ^~~

COBA:301:22: error: expected primary-expression before '.' token

     lcd.print(DHT.temperature);

                  ^

COBA:312:14: error: expected primary-expression before '.' token

      (DHT.humidity > readLembap())

          ^

COBA:318:11: error: 'lcd' was not declared in this scope

       lcd.clear();

       ^~~

COBA:323:24: error: expected primary-expression before '.' token

       lcd.print(DHT.humidity );

                    ^

D:\SKRIPSI\COBA\COBA.ino: In function 'void saveDataLembap()':

COBA:351:12: error: 'lcd' was not declared in this scope

        lcd.clear();

        ^~~

D:\SKRIPSI\COBA\COBA.ino:351:12: note: suggested alternative: 'tmlcd'

        lcd.clear();

        ^~~

        tmlcd

COBA:377:9: error: 'lcd' was not declared in this scope

     lcd.clear();

     ^~~

D:\SKRIPSI\COBA\COBA.ino:377:9: note: suggested alternative: 'tmlcd'

     lcd.clear();

     ^~~

     tmlcd

D:\SKRIPSI\COBA\COBA.ino: In function 'void saveDataSuhu()':

COBA:408:12: error: 'lcd' was not declared in this scope

        lcd.clear();

        ^~~

D:\SKRIPSI\COBA\COBA.ino:408:12: note: suggested alternative: 'tmlcd'

        lcd.clear();

        ^~~

        tmlcd

COBA:434:9: error: 'lcd' was not declared in this scope

     lcd.clear();

     ^~~

D:\SKRIPSI\COBA\COBA.ino:434:9: note: suggested alternative: 'tmlcd'

     lcd.clear();

     ^~~

     tmlcd

D:\SKRIPSI\COBA\COBA.ino: In function 'void showData()':

COBA:451:5: error: 'lcd' was not declared in this scope

 lcd.clear();

 ^~~

COBA:454:18: error: expected primary-expression before '.' token

 lcd.print(DHT.humidity,0);

              ^

COBA:458:18: error: expected primary-expression before '.' token

 lcd.print(DHT.temperature);

              ^

COBA:465:12: error: expected primary-expression before '.' token

 if( DHT.humidity > readLembap() ){

        ^

COBA:472:12: error: expected primary-expression before '.' token

 if( DHT.temperature > readSuhu() ){

        ^

exit status 1

'dht' does not name a type

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

anon57585045 · July 19, 2022, 5:36pm

What a mess! Please edit your post and add code tags. You can find instructions for doing that, in the introduction you skipped. Check the permanent threads at the top of the "Programming Questions" forum, where you should have posted it..

sterretje · July 19, 2022, 6:52pm

Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project.

bayurbr · July 20, 2022, 2:07am

Sorry

bayurbr · July 20, 2022, 2:08am

Thank you

anon57585045 · July 20, 2022, 2:42am

Dude, code tags please...

system · January 16, 2023, 2:42am

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.

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