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+--- Thread: 4-20mah sensor wiring example (/showthread.php?tid=6707)
4-20mah sensor wiring example - aucirc - 09-16-2024
I'm considering the KC868-AIO - I need several water level sensors and interested in using the 4-20mah version of this (as the accuracy is better over longer distances)
https://aliexpress.com/item/1005006338737673.html
It's a two-wire sensor, but I can't find any examples of how this should be connected to the KC868-AIO? As these work best with 24V should the KC868-AIO be powered with 24V also?
RE: 4-20mah sensor wiring example - admin - 09-16-2024
KC868-AIO analog input port support 4-20mA sensor. KC868-AIO support use by DC24v power supply.
just let sensor and dc24v power supply series connection with KC868-AIO's analog input port.
RE: 4-20mah sensor wiring example - aucirc - 09-16-2024
(09-16-2024, 01:34 PM)admin Wrote: KC868-AIO analog input port support 4-20mA sensor. KC868-AIO support use by DC24v power supply.
just let sensor and dc24v power supply series connection with KC868-AIO's analog input port.
Thanks - just to confirm, like this?
cd74hc4067
![[Image: IlFJL8D.png]](https://i.imgur.com/IlFJL8D.png)
Any advice for how to set this up in ESPHome? The YAML template seems to be configured to measure voltage for all analog inputs?
https://www.kincony.com/forum/showthread.php?tid=2736
https://www.kincony.com/forum/attachment.php?aid=2189
RE: 4-20mah sensor wiring example - admin - 09-16-2024
diagram correct.
here have video tour for how to use 4-20mA sensor in home assistant by ESPHome: https://www.kincony.com/forum/showthread.php?tid=3499
it's the same way for KC868-AIO, just modify the analog input in yaml file.