ESP8266 Community Forum

Hi All,

I am trying to flash my ESP8266 by NodeMCU but it starts and gets stops within 20%, Can anyone help me how to proceed further.(Please refer attachment).

Also when I try to type AT commands on Putty terminal or Arduino SerialMonitor, nothing is getting printed.

However, I am able to run the Sketch WifiScan from the sample successfully.

Thanks

Syed

Still no replies.. Is there anyone who can help me on this?

I'm not familiar with the programming software you have a picture of. I have never needed it. If you are trying to use the Arduino IDE then why not use the programming functions included?

If you have the Arduino scan sketch programmed then you have overwritten the firmware and the program that was there is gone. And that is why it will not accept AT commands anymore.

I think you have not had any help because it is unclear as to what you are doing. I'm guessing but I certainly don't know for sure based on your post.

This is an Arduino forum. From your description I conclude you're trying to flash the NodeMCU firmware.

Correct? Then head over to viewforum.php?f=24, Random Lua Chat. You may want to checkout http://nodemcu.readthedocs.io/en/latest/en/flash/ before.