Looking for unit to read the status of several relay-contacts via OneWire-bus

grelm

Hi!
For one of my projects I would like to read the status of several relay contacts with a OneWire-Device connected to Grove port B.
I know, there is the DS2408 IC, but I am looking for a "more complete" unit, ready to connect the relay contacts and with a grove connector.
I would like to ask the community, if anybody is aware of such a unit and where I could buy it.
Thanks - grelm

grelm

Hi again!
Is really nobody reading relay-contacts via the OneWire-bus?
Or is there a better alternative solution for such an application? How?
Thanks - grelm

ajb2k3

Hi grem, I'm not even sure what you are asking.
As far as I know there isn't a 1wire way to do this.

grelm

My project reads 10 temperature sensors DS18B20 via a OneWire.bus (or 1-wire-bus) which is connected to the Grove B port of the M5Stack Fire.
In addition to those 10 temperaturesensors I would like to capture the status of relay contacts (on or off). For that I would need some kind of input device which I can connect to the existing OneWire-bus.

In the meantime I found 2 devices which would possibly do the desired job:

DS2413 1-Wire Two GPIO Controller Breakout; PRODUCT ID: 1551 - https://www.adafruit.com/product/1551
ClosedCube Duo DS2413 - https://www.amazon.de/closedcube-DS2413-1-Wire-ansteuerbaren-Schalter-Breakout/dp/B01GBTMX3A/ref=sr_1_1?__mk_de_DE=ÅMÅŽÕÑ&keywords=ds2413&qid=1561665695&s=gateway&sr=8-1

New questions:

Has anyone already worked with these modules?
What are your experiences with these modules?
Are there usable Arduino librararies for these modules?

Thanks - grelm

grelm

Hi!
Are there really no answers to my questions?
Thanks - grelm