[elektro] DS1820

[Fekete Róbert]

ahhha
Köszi!


SirLeslie írta:
> Fekete Róbert wrote:
>> Üdv a Nagyérdeműnek
>>
>> érdeklődnék hogy milyen messzire lehet a dallas DS1820 as hőmércéjét 
>> vezetékelni a procitól?
>> 10-20m ?
>>
>>
>> előre is köszi!
>>
>> FRob
>>
>> www.harden.hu
>> www.loudlink.eu
>>
>> "Minden megoldható legalább egyszer
>> és ha már egyszer megoldható..."
>>
>>   
> 
> A bascom súgó szerint ezt a távot az 1wire bőven tudja -Using the 1 WIRE 
> protocol résznél:
> 
> ...
> Cable lengths (this section is only for some limitation understanding)
> 
> For short runs up to 30 meters, cable selection for use on the 1-Wire 
> bus is less critical. Even flat modular phone cable works with limited 
> numbers of 1-Wire devices. However, the longer the 1-Wire bus, the more 
> pronounced cable effects become, and therefore greater importance is 
> placed on cable selection.
> For longer distances, DS recommends twisted-pair-cable (CAT5).
> DS standard examples show 100 meters cable lengths, so they say, that's 
> no problem. They also show examples with 300m cabling, and I think I 
> have seen something with 600-meter bus (but I cant find it again).
> ...
> 
> 
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