Thanks for superfast reply.
So if I modify serial.py thing would work without both serial transistors, with direct connection to io0 and en pins?
Another question: traces under wroom32 antena traces - would the way I put traces around this area not disturb wifi signal?

I just received wroom32 from Olimex I am trying to design minimalistic custom board that would allow flashing without reset and flash buttons. I tried to follow following instructions https://gist.github.com/morganrallen/09bae350b69c2a621d50 I plan to flash upload firmware with usb to ttl serial fro...

Can you post PDF of schematics and pcb layout since ORCAD is not my favourite pcb design tool.