ESP8266 Community Forum

- Wed Jul 01, 2015 7:36 pm #22204 I've connected my ESP8266 to my FTDI and the red led comes on, but sometimes, right after the connection to power the blue led blink 2 times or 1 time. When it blinks 1 time the esp doesn't work and if i try to send the AT command i don't receive nothing, but when it blinks 2 times everything works. Do you guys know why?
Thank you all.

- Thu Jul 02, 2015 2:17 am #22232 Sounds like you are booting into either UART mode or FLASH mode and it depends on how its wired and what connections you have when you boot . See the Wiki on this page above at top

Get you modules here:

https://www.banggood.com/custlink/KvGGhGF4wG