Do any of the nodes work?

[taisau]

If not, it may be helpful if there was a noticeable note that neither the Cluster In or the Pin Value nodes work, and the Cluster out only toggles?

[S-Przybylski]

I personally use several pcf8574 on one bus using a shared interrupt (input mode). I have serious problems running the current module:

• If several pcf8574 are configured in one cluster-configuration, node red stops working
• The initial status is not provided as expected
• Status changes are not provided as expected Workaround 1: I have a GPIO-IN node running without further usage in parallel on the Interrupt pin. Then i get status changes somehow. But the problem resists, that the initial status is not provided for all inputs. Workaround 2 - Using multiply extenders: I created multiply indipendent cluster-configurations which are sharing the same interrupt pin. Workaround 3 - Storing the last state: I store the known input state in a global node (but this is also limited to the fact, that i do not get the exact initial state) Hopefully this helps!

[S-Przybylski]

My conclusion was last month to switch to a different technology, because of the issues of this module at all. Now I use an Olimex ESP32-POE-ISO with an I2C Adapter using ESPHOME. Thats realy brilliant and stable.