This is an issue with the ESP8266 module / firmware, not the Adafruit library but I'm describing it here because it may affect people trying to use the library.

The problem I'm seeing is that, after successfully retrieving an HTTP page, sending the AT+CIPCLOSE command to close the TCP connection seems to reset the module. (See full log below.) Maybe this is because the ESP8266 is confused by the fact that the other end has already dropped the connection? (An AT+CIPSTATUS just before the AT+CIPCLOSE gives the status as connected.)

After the reset, the module still appears to be connected to the same wifi network and working (able to do another HTTP GET), so it might be possible to work around this. Still, it seems to complicate the use of the module if it resets unexpectedly (and generates unexpected data in the form of the boot message).

Any one else seen this? Ideas for how to cleanly close the connection without reseting the module?

AT+RST


OK
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AT+GMR

0018000902-AI03

OK
AT+CWMODE=1

no change
AT+CWJAP="Mellis",""


OK
AT+CIPMUX=0


OK
AT+CIFSR

192.168.2.5

OK
AT+CIPSTART="TCP","www.adafruit.com",80


OK
Linked
AT+CIPSEND=61

> GET /testwifi/index.html HTTP/1.1
Host: www.adafruit.com


SEND OK

+IPD,536:HTTP/1.1 200 OK
Date: Sun, 08 Feb 2015 22:31:58 GMT
Server: Apache
Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Accept-Encoding, Authorization, Referer, User-Agent
Access-Control-Allow-Methods: GET, POST, OPTIONS
Access-Control-Allow-Credentials: true
Access-Control-Max-Age: 1728000
Last-Modified: Thu, 27 Jun 2013 14:13:27 GMT
Accept-Ranges: bytes
Content-Length: 74
Vary: Accept-Encoding
Content-Type: text/html

This is a test of the CC3000 module!
If you can read this, its working :)

OK
AT+CIPSTATUS

STATUS:3
+CIPSTATUS:0,"TCP","207.58.139.247",80,0

OK
AT+CIPCLOSE

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hi
i want to connect to esp8266 to each other and use Arduino but i could not connect them.these are my codes what is my mistake?one of them is client and the another is server.
client:
SendToESP8266("AT+RST"); WaitForESP8266(2000); SendToESP8266("AT+CWMODE=3"); WaitForESP8266(5000); SendToESP8266("AT+CIPMUX=1"); //enable multiple connection WaitForESP8266(1000); SendToESP8266("AT+CWJAP=\"MAZ2\",\"123456789\""); WaitForESP8266(8000); Serial.println("");
server:

SendToESP8266("AT+RST"); WaitForESP8266(2000); SendToESP8266("AT+CWMODE=3"); WaitForESP8266(5000); SendToESP8266("AT+CIPMUX=1"); //enable multiple connection WaitForESP8266(1000); SendToESP8266("AT+CIPSERVER=1,8888"); //open port 9999 WaitForESP8266(3000); SendToESP8266("AT+CIPSTART=0,\"TCP\",\"192.168.4.1\",8888"); WaitForESP8266(5000);

arduino/Arduino#2591

The bug doesn't get hit in any of the example code but it could in other code.

When I try to compile the "webclient" example, I get the following error:

In file included from espneotest.ino:1:0:
/Volumes/MacHDD/Dropbox/Dropbox/programming/arduino/libraries/Adafruit_ESP8266/Adafruit_ESP8266.h:28:35: error: section attribute not allowed for 'Pchr'
typedef const PROGMEM char Pchr; // Ditto, kindasorta
^
Error compiling.

When I want to connect to my network, an error occurs. I find that the latest response not only contains "OK", so when the library try to split the response by '\n' and read one line, it will get the wrong result.

WIFI CONNECTED
WIFI GOT IP

OK

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Can you tell me about the pin configration of arduino with esp8266.
thanks

Trying to compile the code.
I am getting this error with the Adafruit esp8266 board.
it works well with the arduino board selected from the list.
This is the error. What to do?
section attribute not allowed for 'Pchr'

typedef const PROGMEM char Pchr;

In the header file adafruit_esp8266.h
cipsend function is missing. which header file we need to use for this particular function?