1-Wire UTP cable color mapping
this afternoon I will cable my 1-wire temperature sensor network connecting to 1-wire hub.
I'm referring to this tutorial to prepare the connection to UTP cables. https://www.unipi.technology/tutorial/topology-of-1-wire-network-46
What is not clear is the sequence of utp calbe color to use.
UTP cables have 4 twisted pair: orange/white-orange green/white-green blu/white-blu brown/white brown.
Do I need to use a particular color sequence to crimp the cable to RJ45 connector?
Let me know
Martin Kudláček last edited by
if you are using UTP cable between Neuron/Axon and the 1-Wire hub, then it is safe to stick to the original network cable pinout (TIA-568B) on both sides:
I followed your indication and all my 5 thermostat are working fine.
I use autodetect and they are mapped as "1W-UniversalAi.1"
I'm able to see the temperature of all of them.
I've another question:
the devices I connected are "SEDtronic 1-Wire sensor variant: U1WTVS", they should measure the humidity too and .
How to read the humidity values?
Seem value VAD and VDD are connected to humidity and intensity of light, but need help to understand how to use them.
you'll need to use the Unica U1WT function for each sensor. It's a part of the Lib.UniPi which has to be added among the other references in the solution in Executable projects.
in my 1wire bus I've 3 HUB and several sensons. Everything is working fine.
Only problem appear when on the last port on my last hub I connected a rj45 splitter
( https://www.unipi.technology/1wire-hub-2-port-p50 ).
After a while I connect the thermometer to this hub it disconnect. (it appears red in mervis)
All RJ45 port are cabled whit pinout TIA-568B and thermometer are cabled as follow:
+VCC: blu + blu/white
GND: brown + green/white
1W : green + brown/white.
Do I need to use the same schema of connection on the thermometer atteched to 2 port splitter?
let me know if you have suggestion how to troubleshoot the problem.