ESP8266 Forum • AT command not working - Everything ESP8266

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AT command not working

Posted: Tue May 30, 2017 6:24 am

by anishgupta

I programmed the esp chip using arduino IDE. Now the AT command is not working. Do i have to reflash the firmware for it to work?

Re: AT command not working

Posted: Tue May 30, 2017 2:38 pm

by martinayotte

When uploading an Arduino sketch, the AT firmware is gone/erased.
So Yes, you have to upload it again ...

Re: AT command not working

Posted: Tue May 30, 2017 4:06 pm

by atexit8

anishgupta wrote:I programmed the esp chip using arduino IDE. Now the AT command is not working. Do i have to reflash the firmware for it to work?

If you want the AT command firmware back, https://www.allaboutcircuits.com/projects/flashing-the-ESP-01-firmware-to-SDK-v2.0.0-is-easier-now/