I´ve had problems with my ESP8266 recently. It was working good, I used to upload sketches until I decided to try use the running mode for some days. Later, after my tests were completed, I wanted to upload the sketch again and.. PROBLEMS..
I can´t upload the sketch properly, I´ve reviewed wiring a lot of times and it seems it´s ok. When I try to upload, I can see the blue led blinking, but slower than when I uploaded days ago.
What do you suggest? Any firmware problem?
Thanks,
A.