My DS18B20 works over 34 feet of Cat5e but not over 160 feet.
Resistance for the 160 foot wire is 4.7 ohms, 0.29 ohms per foot.
Resistance for the 34 foot wire is 0.9 ohms, 0.26 ohms per foot.
Both lengths of cable are from the same 200 foot length.
Is my 160 foot cable too long or might I have another problem?
I have read that 1wire is good for 100 meters over Catx.
Thanks,
Peter
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