Hi,
in my house the free space for cables is minimal, so 1wire cables are near power lines :-( and every cable is about 6-8 mt. long.
I use a twisted 1 pair with shield (shield not connected). But I get some temp=85.
I suppose it is a interference problem or low power problem.
What do you think if I:
Solution 1:
1. get a power injector ( http://www.hobby-boards.com/catalog/links/...20Schematic.pdf )
2. connect
pin 2 of a rj45 (see http://www.hobby-boards.com/catalog/howto_wiring_diagram.php ) to shield
3. connect shield to VD0 (the 3 pin of DS18S20)
So DS18S20 has the +5v power via cable shield.
Solution 2:
1. get a power injector
2. use an unshield 2 pair cable?
solution 3:
Same as solution2 but with non-twisted cable.
Thanks for your help
v.
in my house the free space for cables is minimal, so 1wire cables are near power lines :-( and every cable is about 6-8 mt. long.
I use a twisted 1 pair with shield (shield not connected). But I get some temp=85.
I suppose it is a interference problem or low power problem.
What do you think if I:
Solution 1:
1. get a power injector ( http://www.hobby-boards.com/catalog/links/...20Schematic.pdf )
2. connect
pin 2 of a rj45 (see http://www.hobby-boards.com/catalog/howto_wiring_diagram.php ) to shield
3. connect shield to VD0 (the 3 pin of DS18S20)
So DS18S20 has the +5v power via cable shield.
Solution 2:
1. get a power injector
2. use an unshield 2 pair cable?
solution 3:
Same as solution2 but with non-twisted cable.
Thanks for your help
v.