(08-04-2022, 11:13 AM)admin Wrote: KC868-A8/A8S both have I2C extender
Exactly, but I needs a board (with only dry contact inputs, example input on PCF8574) that we connect to KC868-A8/A8S, to I2C extender port.
KC868-A128 ESP32 board or KC868-AI ESP32 input module it is too big, it will not fit into the POWER DISTRIBUTION BOX (https://simple.wikipedia.org/wiki/Distribution_board).