ESP8266 Community Forum

- Fri May 08, 2015 9:29 am #16905 No it's not a serious project
I didn't know that also GPIO2 affects the boot mode...Thanks! I think I will use tx or rx because I don't need them!
so you suggests a optocoupler instead of voltage divider for this particular situation?

- Fri May 08, 2015 10:57 am #16913 Simple = transistor, safe = optocoupler.