meanings of errors help please

Projects Programming
1

I am a complete noob to this,i am using arduino 023 and getting the erros below , the sketch is in the attatchment, the lib path is C:\Users\FS\Documents\Arduino\libraries ,i was given the sketch, but i cannot get it to verify . This might be a stupid question, i am lost ,and just about to give up

I want to read the temps outside air temp, outside water temp, inside temp and humidity, then log it to the web

This sketch shows how to log data from a DHT11 and DS18B20 sensor to an SD card using the SD library.
The data from the sensors is updated every 10 seconds and written to the SD card in a CSV file.
Time stamp is taken from a DS1307 RTC. The data of the DHT22, DS18B20 and RTC is also available on a webserver.
The time of the DS1307 RTC is synced with a timeserver once a day. (DS1307 is not accurate over a long time.)

sketch_jul07a.cpp:17:17: error: dht.h: No such file or directory
sketch_jul07a:34: error: 'dht' does not name a type
sketch_jul07a.cpp: In function 'void setup()':
sketch_jul07a:67: error: 'class RTC_DS1307' has no member named 'isrunning'
sketch_jul07a.cpp: In function 'void loop()':
sketch_jul07a:91: error: 'DHT' was not declared in this scope
sketch_jul07a:151: error: 'DHT' was not declared in this scope
sketch_jul07a:259: error: 'DHT' was not declared in this scope

#include <SPI.h>
#include <Ethernet.h>
#include <Wire.h>
#include "RTClib.h" This lib has quotes why is that
#include <dht.h>
#include <SD.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>
#include <Udp.h>

thanks

paul

sketch_jul07a.pde (8.93 KB)

2

This one should be pretty obvious:

sketch_jul07a.cpp:17:17: error: dht.h: No such file or directory

You are trying to include a file that you don't have.

Fix this one, and the rest will go away.

3

The dht.h is there in the dht directory, would the directory name make any difference if it was lower or upper case

4

Yes it is case sensitive.
You might know where the file is but your compiler doesn't.

5

Thanks for the reply , i will check this out

6

Things are getting better , i have a new set of errors now , RTC.isrunning is missing i think , do i need an older version of RTClib to run with IDE 023

paul1jul16ab.cpp: In function 'void setup()':
paul1jul16ab:69: error: 'class RTC_DS1307' has no member named 'isrunning'
paul1jul16ab.cpp: In function 'void loop()':
paul1jul16ab:93: error: expected primary-expression before '.' token
paul1jul16ab:112: error: expected primary-expression before 'float'
paul1jul16ab:112: error: expected )' before 'float' paul1jul16ab:153: error: expected primary-expression before '.' token paul1jul16ab:156: error: expected primary-expression before '.' token paul1jul16ab:261: error: expected primary-expression before 'float' paul1jul16ab:261: error: expected )' before 'float'
paul1jul16ab:264: error: expected primary-expression before 'float'
paul1jul16ab:264: error: expected `)' before 'float'

paul1jul16ab.pde (8.79 KB)

7

Lines 153 to 156 are currently:

          client.print(DHT.temperature);
          client.println("
");
          client.print("Humidity (%): ");
          client.print(DHT.humidity);

And i am guessing they should be:

          client.print(DHT.temperature());
          client.println("
");
          client.print("Humidity (%): "); //This may have to be:  client.print("Humidity (%%): "); // as the percent sign is special
          client.print(DHT.humidity());

Similarly lines 261 to 264:

  lcd.print((float)DHT.temperature, 1);
  lcd.setCursor(3, 2);
  lcd.print("humidity:");
  lcd.print((float)DHT.humidity,1);

should be:

  lcd.print((float)DHT.temperature(), 1);
  lcd.setCursor(3, 2);
  lcd.print("humidity:");
  lcd.print((float)DHT.humidity(),1);

and line 112:

      dataFile.print((float)DHT.temperature);

should be:

      dataFile.print((float)DHT.temperature());

I haven't seen the library but I am guessing they are supposed to be functions.

8

Thanks Tom, i will change the code and re compile

paul

9

changes done, still getting the same set of errors (fixing Helicopters is easier)

10

if i comment out this line // if (! RTC.isrunning()) { i only get these errors, if this helps

tom1jul16ab:74: error: expected constructor, destructor, or type conversion before '(' token
tom1jul16ab:75: error: expected constructor, destructor, or type conversion before '.' token
tom1jul16ab:76: error: expected constructor, destructor, or type conversion before '(' token
tom1jul16ab:79: error: expected unqualified-id before 'if'
tom1jul16ab:84: error: expected constructor, destructor, or type conversion before '.' token
tom1jul16ab:85: error: expected declaration before '}' token

11

If statements have an open bracket and a close bracket.

  if (! RTC.isrunning()) {    //If you commented out this one......
    Serial.println("RTC is NOT running!");
    RTC.adjust(DateTime(__DATE__, __TIME__));
  } // Then you need to comment out this one aswell.....

Or, better still:

  /* if (! RTC.isrunning()) { 
    Serial.println("RTC is NOT running!");
    RTC.adjust(DateTime(__DATE__, __TIME__));
  } */ //This is a special comment. Anything between the /* and the */ will be commented out.
12

thanks Tom

commented out those lines of code, still getting the errors above ,sorry to be a pita