ESP8266/32 (Home Assistant Switch) connected to PCF8574 controlling 8 AC relays

Yes I know ESPHomeYaml exists, here is my naive attempt at making relays talk to HA!

Home Assistant Switch for 8 Relays: PCF8574 can be used to extend the GPIO of ESP8266/32 and here we use 8 ports of PCF8574 to control 8 Relay module



There are also modules from aliexpress & co which are network controllable, eg,searchweb201602_2_10065_10068_10547_319_10059_10884_317_10548_10887_10696_321_322_10084_453_10083_454_10103_10618_10307_537_536_10902,searchweb201603_60,ppcSwitch_0&algo_expid=b429709e-8ff5-401e-bfc8-72dcfbd5d4af-8&algo_pvid=b429709e-8ff5-401e-bfc8-72dcfbd5d4af

Not wifi though.

So cool. Same idea but this project is ESP8266/ESP32 based.