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Message from ESP8266 Module

Posted: Fri May 19, 2017 2:52 pm
by pranayjoshi
I want to know about what is the meaning of messages transmitted from Ai-Thinker ESP8266MOD 12E module in response of AT commands. And also what step is taken after that messages. Because after message received no further AT command executed.

Messages like -
1) busy p...
2) busy s...
3) too many inputs.

Please give document which is explain meaning of this messages.

Re: Message from ESP8266 Module

Posted: Fri May 19, 2017 5:30 pm
by pratik
Can you please run AT+GMR and tell me what firmware version it is running?
Also, why do you get those busy p... etc messages? Which commands are not working well?

Re: Message from ESP8266 Module

Posted: Fri May 19, 2017 6:41 pm
by pranayjoshi
Snapshot of module information attached.

I am using AT+CIPCLOSE=<link id> command.It is successfully executed and received OK response. But after again connect module and try to communicate using module with another AT command then received "busy p..." response.

You have any documents which explain this messages condition?

Re: Message from ESP8266 Module

Posted: Sun May 21, 2017 12:21 am
by pratik
Oops, you're using the oldest version of the AT firmware that exists!
You need to update your firmware, there have been hundreds of updates since this version. You may use AT+CIPUPDATE by connecting the ESP to an AP with internet access. Or just reprogram the firmware via UART (there are many articles online on this).

Re: Message from ESP8266 Module

Posted: Mon May 22, 2017 3:18 pm
by pranayjoshi
Thank you for reply.

I get latest bin file release of ESP8266_NONOS_SDK from git. But this is support to 8Mbit & 16Mbit flash as mention in release document.
I am using 4Mbit flash ESP8266. Can you please share 4Mbit flash module firmware update link.

Pranay Joshi

Re: Message from ESP8266 Module

Posted: Tue May 23, 2017 7:25 pm
by Her Majesty
4Mbit is too small to use the latest AT firmware.
busy means that one AT command is executing, the AT core cannot accept another one. It means that the AT core is busy now. Maybe you can wait for a while, till the previous AT command done its work.

Re: Message from ESP8266 Module

Posted: Sat May 27, 2017 2:08 pm
by pranayjoshi
Thank you Her Majesty.

After getting busy response I wait for OK response but not get it. I have to reset wifi module to get out of from this condition. I don't want to reset WIFI module each time. Because of that I want to get some alternate solution for this responses. But as you are saying AT core not accept any other AT command in this situation. So not able to solve this condition.

If any one have some alternate solution please share with me.

Pranay Joshi