What is the correct command set for ESP8266?

Projects Networking, Protocols, and Devices
1

Using this type of ESP8266 chip:

1200×1200 268 KB

And running this firmware: ESP8266_Simple/firmware at master · sleemanj/ESP8266_Simple · GitHub

AT+RST is the only command so far that does not return ERROR.

I just want to change the baud rate but can't find an AT command that will work with with this chip.

2

boylesg:
Using this type of ESP8266 chip: [http://i.stack.imgur.com/1Qtcc.jpg

And running this firmware: ESP8266_Simple/firmware at master · sleemanj/ESP8266_Simple · GitHub

AT+RST is the only command so far that does not return ERROR.

I just want to change the baud rate but can't find an AT command that will work with with this chip.

This is third topic about same issue.. ..but anyway

  • Which one of those firmwares you are using, in other words what's the baudrate you are using ?
  • How you are trying to give those AT-commands (Arduino IDE serial monitor, putty, hyper terminal?) and how are your line ending settings?
  • Does simple "AT" command return AT OK ?

boylesg:
What is the correct command set for ESP8266?

I can't answer 'cos I don't know what you'd like to do with your shield, but here is a snip I just made with same kind of shield you have and there was no troubles to get contact with the chip.. Just two commands "AT" and "AT+GMR" with those results seen in the picture.. I used USB-UART with 3.3V logic level thru Debug port on the shield.

Snip.PNG
Snip.PNG655×708 16.6 KB

TommiP

3

I'm not sure why I'm answering since you already threw the shield away but here goes anyway:

boylesg:
And running this firmware: ESP8266_Simple/firmware at master · sleemanj/ESP8266_Simple · GitHub

That appears to be a stash of old AI-Thinker AT firmwares. AI-Thinker is the manufacturer of the ESP8266 module(not of the ESP8266 chip). I believe that firmware allows you to control the GPIO pins of the ESP8266 via AT commands but I'd just use the IO pins on the Arduino board the shield is on so I don't see that feature as useful and the AI-Thinker website is Chinese and Google doesn't seem to be able to translate it so I haven't been able to get much information on that firmware

I recommend you to use the official AT firmware from the creator of the ESP8266, Espressif. The AT firmware is included in the NONOS releases of the SDK at:
http://bbs.espressif.com/viewforum.php?f=46
The latest is NONOS release is v2.0.0:
bbs.espressif.com/viewtopic.php?t=2451
The AT firmware is in the bin/at subfolder.