1

I am trying to program ESP01 module with cp2102 USB to TTL converter, I successfully programmed it earlier

Using logic level shifter i.e. resistor divider on RX and providing 3.3 v externally

My problem is when I try to program it now with same setup that worked earlier I see as code starts uploading my ESP01 and USB to TTL module lights blink but code doesn't get uploaded.

Could it be a problem related to the baud rate? If so, what can I do to solve that?

1
  • Have you tried totally powering it off? Is the ide showing any communication errors for the com port? Oct 2, 2020 at 18:59

1 Answer 1

1

Make sure to connect:

  • GPIO0 (pin #5) to GND (pin #1)
  • CH_EN (pin #4 - also called CH_PD) to VCC (pin #8 - 3.3v)

enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.