Sending sketch to Atmega8 with optiboot via ESP01 about esp-link HOT 2 CLOSED

So the 9600 baud version tells me "wrong baud rate"
In the 115200 baud rate version, if you pull up an ascii chart and decode what avrdude received you see "AT+CIPMUX=", which tells me that whatever is loaded in the AVR processor started, i.e., the bootloader popped out of programming mode.
My guess is that the round-trip time is too large. This was a common occurrence for me when using an esp-01 or esp-03 due to the shitty RF design and went away once I switched to esp-12 modules.
We're working on adding code to esp-link to try and work-around this issue, but there's only so much we can do.

from esp-link.

I expect this to be fixed in V2.1 using the built-in AVR programmer. Please re-open if not and thank you for the report!

from esp-link.