ESP8266 Community Forum

O.K folks I tried several times to communicate with the esp03 with no luck.
So this time I'm going to write down the whole process and with your support we will make a step by step toturial.

Hardware:
1. Pc runing windows 7
2. Esp8266 esp-03
3. FT232RL FTDI USB 3.3V 5.5V to TTL Serial Adapter

Software:
1. Serial terminal: coolterm or Termite


Wiring Diagram:

Updated after By Barnabybear - Fri Aug 21, 2015 12:01 pm reply post

Actual Layout:


Connecting Esp 03 to Power 3.3v
I have a profesional external power supply set to 3.3v

Connecting Esp 03 to PC
Conecting the mini usb to PC USB port (drivers were installed earlier)

Trying to communicate per(http://www.instructables.com/id/ESP8266-based-web-configurable-wifi-general-purpos/?ALLSTEPS:

1) leave GPIO0 floating.
2) Access the serial interface with a terminal program- I use Termite, my port is com5.
3) Set the terminal s/w baud rate to either 57600 or 115200 - I tried 9600 .. 115200
4) Power-up the ESP8266 and you should see some readable text indicating that it's ready. - NOTHING HAPPNING
5) If you get nonsense try changing the baud rate. If all is well, try some AT commands.
6) Try AT+RST which should re-start the module.- NOTHING HAPPNING
7) Try AT+GMR which should give the firmware version. - NOTHING HAPPNING

Anyone have an idea how to proceed?

Found one error - conected the the yellow and green wire wrong
Now I'v connected the Yellow wire from Esp TxD to Ftdi Rx and the Green wire from Esp RxD to Ftdi Tx

1) leave GPIO0 floating.
2) Access the serial interface with a terminal program- I use Termite, my port is com5.
3) Set the terminal s/w baud rate to either 57600 or 115200 - I tried 9600 .. 115200
4) Power-up the ESP8266 and you should see some readable text indicating that it's ready. - I SEE

The line feeding is continuously and to stop it I need to disconnect the power

Hi, haven't looked at the other stuff, but you will need ground on your USB device connecting to ground on your board.