Hello LMRians,
I recently bougt an esp8266 wifi module but when I enter any AT command (or gibrish) I get ERROR in return. What may be the problem?
I have tried all power modules, power is OK. The same thing happens with all modules i have.
Please HELP!! URGENT!!!!!!!!!!!!!
ESP8266
I think we would need more information as to which module and embedded firmware you are using. I have some early modules that start up at 72K baud and switch to the operational rate after initialization. Looks like random noise on the console for about 3 seconds.
the module i used is Esp8266
the module i used is Esp8266 serial ESP-01
link is :: http://www.ebay.com/itm/ESP8266-Serial-Esp-01-WIFI-Wireless-Transceiver-Module-Send-Receive-LWIP-AP-STA-/221589414478?
boud rate was set to 115200
communication is done via arduino IDE.
Baud rate
Hi, I never put my hands on any ESP8266… yet.
But, I read several times such problems about baud rates and that firmwares varies, though don’t thrust any standard.
Good luck !
BTW, nice hat !
Baud rate
If it is important to you I think you will need to measure the baud rate with a scope. I have same modules and factory programmed is all over the place.
For testing baud rate I
For testing baud rate I checked each and every option availablle. options other than 115200 doesn’t respond but this option shows "Gibrish
al-thinger technology co.
READY
AT
ERROR
Ahdghj
ERROR"
that is what screen looks like…
Thank you 
Try powering them with a
Try powering them with a separate 3.3v regulator which can supply 500mA or more, Arduino uno 3.3v regulator may not provide enough current for the module to boot up. I strongly recommend nodemcu boards as they include usb and can be programmed with arduino ide.
