ESP8266 Community Forum

- Mon Jun 06, 2016 2:48 pm #48676 Hi,
I have my first 8266 module and started with it.
On the first attempts I got some clear text mixed with some garbage.
So i thought the Baudrate is maybe too high (115299).
So I used the AT+IPR=9600 command.
AFTER that I habe read 'Don't use this command on newer firmwares! Configuration will be wrong and you will have to erase the configuration part of flash memory.'

So know I'm getting this output at 74880 Baud when powering it on:

ets Jan 8 2013,rst cause:1, boot mode:(3,7)

load 0x40100000, len 1396, room 16
tail 4
chksum 0x89
load 0x3ffe8000, len 776, room 4
tail 4
chksum 0xe8
load 0x3ffe8308, len 540, room 4
tail 8
chksum 0xc0
csum 0xc0

2nd boot version : 1.4(b1)
SPI Speed : 40MHz
SPI Mode : DIO
SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user1 @ 1000


SDK

The Blue LED is now always on and no AT command can be send to the 8266.

So, is there any way to do a hardware reset to factory defaults?
I have this module: https://www.amazon.de/dp/B0169NDA3U/ref ... TE_3p_dp_1

Cheers
Florian

- Sat Sep 24, 2016 9:20 am #55613 Hello Florian.

I am having the same problem with an ESP13 module mounted on a Arduino shield. When I reset the shield with the reset button, I get a similar message to you when I set the module comms to 74880, but I no longer get responses to AT commands.

I'm using the "SoftwareSerial.h" library to communicate through my Arduino's digital pins 6 & 7, and monitoring through the serial monitor. I set the comms speed with the module through the AT+IPR=57600 command. That's when it started playing up, and I later read that this speed is not available for the module (LINK: http://www.jaycar.co.nz/medias/sys_mast ... alMain.pdf).

I was wondering if you'd made any progress?

I have a bad feeling I might have bricked my module / shield.

Cheers.
Peter

- Wed Dec 14, 2016 9:15 am #59494 hi guys!, i'm having the same trouble. but my esp is stuck sending data (tx led on on adapter ftdi), not responding at any commando.
how it goes, does someone fix it?

regards!

- Fri Mar 10, 2017 5:22 am #63520 Looks like the AT firmware is erased. Hope this helps.

http://esp8266internetofthings.blogspot ... re-in.html