ESP8266 not responding to AT commands

Projects Programming
1

Hi.
I have an Arduino UNO and a ESP8266 wifi module.
I was able to program it when wiring it as follows:

Tx-Tx
Rx-Rx
Gnd-Gnd
Vcc-3.3V
CHPD-3.3V

I also wired Arduino's reset to ground.
I used and external power supply for the additional 3.3V on Vcc.

I was able to send data doing ipaddress/text.
Everthing was working fine, but i wanted to program the module itself.

When i tried, it showed "error:espcomm_upload_mem failed".

It also showed below that "invalid library found at..."

I made sure everything was set correctly.

Under preferences+Additional boards manager, i added this url:
http://arduino.esp8266.com/package_esp8266com_index.json

The GPIO0 was grounded.

The Generic board was selected on Arduino's IDE.
Still the message was shown.

The library for the ESP8266 was also uploaded (i was able to enter AT commands before).

So i went back to was used to work and it the wiring for entering AT commands.

As i try that, it never responds to my AT commands.
Only on 74880 Baud it shows:

ets Jan 8 2013,rst cause:2, boot mode:(3,0)

load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
vffffffff
~ld

but there is no response for AT commands.

I though there was a problem with Arduino's IDE, so i tried the one online, and i get the same results.

Any help will be appreciated.

Regards

Flahsing ESP8266 Error.jpg
Flahsing ESP8266 Error.jpg477×588 64.1 KB

2

So looks like you uploaded the arduino "environment" Successfully so unless you reflash it with the AT command OS you won't do AT stuff on it like it used to be.

Which ESP do you have? Mounted on a breakout board? What about voltage levels ? Some are pretty sensitive to REceiving on RX at 5v... need To take care of this

You should get a Mini 5V / 3.3V FTDI FT232RL USB to TTL adapter - they really come cheap (need to be a bit patient if from Far East) - that will make your life way easier.