Esp8266 wifi module and Arduino elegoo board

Projects Programming
1

Hello there,
I am a newbie and learning the basics of the Arduino and esp8266 wifi module. I am using the remotexy app and their sketch. I followed through their documentation Arduino UNO + external ESP8266 as WiFi access point
updated with latest firmware

AT version:1.6.2.0(Apr 13 2018 11:10:59)
SDK version:2.2.1(6ab97e9)
compile time:Jun 7 2018 19:34:26
Bin version(Wroom 02):1.6.2

I created a simple sketch and uploaded to the board when i run the serial monitor it shows all the commands as explained on the remotexy site except the CIPSTART. according to their document it could be the old firmware. but i did upgraded the firmware and it was successful. Any Idea why the CIPSTART is showing? I have been trying to get this resolved for almost a week. no luck

This is my AT+RST output

ets Jan 8 2013,rst cause:2, boot mode:(3,7)
load 0x40100000, len 2592, room 16
tail 0
chksum 0xf3
load 0x3ffe8000, len 764, room 8
tail 4
chksum 0x92
load 0x3ffe82fc, len 676, room 4
tail 0
chksum 0x22
csum 0x22
2nd boot version : 1.7(5d6f877)
SPI Speed : 40MHz
SPI Mode : QIO
SPI Flash Size & Map: 4Mbit(256KB+256KB)
jump to run user1 @ 1000

Any help really appreciated.

Thanks
Murali

2

Your linked site doesn't mention CIPSTART. Do you get that output although it's not mentioned there?
Why didn't you post the output you get?

3

pylon ,
thanks for your response.

AT
AT
AT+RST
ATE0
AT+CWMODE=2
AT+CWDHCP=0,1
AT+CWSAP="RemoteXY","12345678",10,4
AT+CIPMODE=0
AT+CIPMUX=1

this is what i see on the serial monitor. according to the Arduino document this suppose to start the server like this "AT+CIPSERVER=1,6377"

according to remotexy tool if this command is not showing as part of the setup/installation, it could be due to old firmware. As I mentioned in my previous post , i updated the firmware.

Thanks again.

Murali

4

After these commands are sent, do you see the "RemoteXY" WiFi network using your phone or notebook?
As you see only the commands sent to the ESP but not it's answers it's hard to tell what went wrong.
There is the possibility that you have a too recent version of the firmware as the linked site doesn't tell you what version you should use.

I probably would try to modify the RemoeXY library to write the error to the serial interface despite the problems you might get with the ESP, you can reset it if it doesn't like that output.

5

yes, the SSID "RemoteXY" shows on my phone settings and also shows on the RemoteXY app. when I add the device in RemoteXY using wifi connection it says connection refused.

i am assuming that the server is not running, i get this refused error.

I did try to edit the Remtoexy.h file and try to add the debug option to check the status on the serial monitor, when I edit and upload the sketch, the board stop sending the AT responses.

when I comment out the debug options in remotexy.h file and upload the sketch i start getting the AT responses.

I did try different firmware versions and if go latest 2.x, 3.x i can't even upload that firmware, the only version it get the AT responses is 1.6 , so I am assuming that is the right firmware version.

Really wired and I see the sample YouTube vides and it is simple process, something that i am missing.

I thought the esp8266 module might be bad and I got 2 different set from amazon all of them the same behavior.

Thanks
Murali

6

Sure, it doesn't get started. Otherwise you would see the AT+CIPSERVER line.

That means you have don't that wrongly. You cannot just activate some debugging option, you have to find the place where the AT commands are sent and the responses interpreted and then write the response to the serial interface if an error is detected.

Have you tried version 1.1?