Hello,
i bought the Sonoff 3-way switch T2EU3C-RF (link to expert4house.com and I tried to find out how i can flash ESPHome on it. The suggestion is always to use the serial port - but the hardware I am presented with, has got only I²C (3V3, SDA, SCL, GND).
I would love to get some suggestions on how I could proceed with the matter.
Thanks in advance
Jonas