03-31-2023, 02:31 PM
(03-18-2023, 12:24 PM)admin Wrote: check your esphome LOG, it will scan all I2C bus device address and output in LOG. whether one of PCF8575 address is wrong.
Hi,
I posted the esphome LOG.
address 0x25 is correct since I verified it with voltage levels on pins A0, A1, A2 of PCF8575.
It seems a failure of PCF8575 (infact after boot all I/Os of that specific IC are high, as described on PCF8575 datasheet... it seems there is no communication).
Thank you
Marcello