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RHT-03

 
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rikotech8



Joined: 10 Dec 2011
Posts: 376
Location: Sofiq,Bulgariq

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RHT-03
PostPosted: Mon Mar 03, 2014 2:13 pm     Reply with quote
Does anyone have driver for this?
http://www.ebay.com/itm/Humidity-Temperature-Sensor-DHT22-RHT03-Arduino-PIC-/131125075330?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item1e87a9dd82
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Ttelmah



Joined: 11 Mar 2010
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PostPosted: Mon Mar 03, 2014 2:19 pm     Reply with quote
<http://www.ccsinfo.com/forum/viewtopic.php?t=51358&highlight=dht22>
ezflyr



Joined: 25 Oct 2010
Posts: 1019
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PostPosted: Mon Mar 03, 2014 2:37 pm     Reply with quote
rikotech8,

When people ask such drop-dead obvious questions that could have been answered with a simple forum search, a lot of folks relegate those people to the 'totally hopeless, waste-of-time' category.......

Just sayin'.......

John
rikotech8



Joined: 10 Dec 2011
Posts: 376
Location: Sofiq,Bulgariq

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PostPosted: Tue Mar 04, 2014 11:39 am     Reply with quote
First, searching RHT03 is different than searching THD right? I used the search into the forum for RTH-03 with no results "No topics or posts met your search criteria".
Since I read the code I wonder how this routine could return number bigger than 0x0F, four bits filled in only, whatever is the serial input? It suppose to return 8bit value.
Code:

 for(iIndex = 0; iIndex < 8 ; iIndex++)
   {
      bExit = False;
      set_timer0(0);
      while (!input(DHT_IO) && !bExit);
      delay_us(30);

      if (input(DHT_IO))
      {
         iValue = iValue |(1<<(7 - iIndex));
         bExit = False;
         set_timer0(0);
         while (input(DHT_IO) && !bExit);
      }
   }
  return iValue;   
}

iValue cant be more than dec.15. I need 8 bit value returned.
I dont know if some1 have tried it but for me it wont work. Maybe I mistake?
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Ttelmah



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PostPosted: Tue Mar 04, 2014 11:47 am     Reply with quote
iIndex = 0; iIndex < 8

8 values. Where are you getting 4 from?.
rikotech8



Joined: 10 Dec 2011
Posts: 376
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PostPosted: Tue Mar 04, 2014 12:49 pm     Reply with quote
Sorry my mistake!
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