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+--- Thread: DS18B20 longer distance (/showthread.php?tid=7073)
DS18B20 longer distance - silicondt - 11-17-2024
Hello I have 10x DS18B20 temp sensors hooked up to KC868-AIO
They are mostly around 50-70ft away from the KC868-AIO
They are all home run cable back to KC868-AIO (star patern)
The cable used is 18/3 OFC copper.
I can only get them to work if hooked directly up short run without extending them.
How can I get this setup to work? Resistors? If so what kind?
Thanks
RE: DS18B20 longer distance - admin - 11-17-2024
You can use thick shielded wire for testing.
here is video tour about long cable for DS18B20: https://youtu.be/4DfJnC3Wd2k
RE: DS18B20 longer distance - silicondt - 11-17-2024
(11-17-2024, 04:59 AM)admin Wrote: You can use thick shielded wire for testing.
here is video tour about long cable for DS18B20: https://youtu.be/4DfJnC3Wd2k
I cannot re run any wire. We have 18 gauge 3 conductor already ran inside walls.
Can a resistor be added or what other options?
RE: DS18B20 longer distance - admin - 11-17-2024
maybe you can use KC868-AM + DS18B20 place to any place independently. all these can integrate to home assistant.
RE: DS18B20 longer distance - silicondt - 11-17-2024
(11-17-2024, 07:17 AM)admin Wrote: maybe you can use KC868-AM + DS18B20 place to any place independently. all these can integrate to home assistant.
In your video. Is that 14awg wire? it says 2.5??
Would I be able to have multiple runs of that in star pattern?
We need 10 temp sensors.
How would I fit them all into the boards little connector?
Would I splice them all together into 3 wires at the end?
RE: DS18B20 longer distance - silicondt - 11-17-2024
(11-17-2024, 07:17 AM)admin Wrote: maybe you can use KC868-AM + DS18B20 place to any place independently. all these can integrate to home assistant.
Can resistors be uses at all? Or no because there is one built into the board already?
RE: DS18B20 longer distance - admin - 11-18-2024
pull up resistance you don't need to add , it already include on PCB.