ESP8266 Community Forum

- Fri Aug 21, 2015 3:25 am #26663 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:

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?

Last edited by maker1 on Fri Aug 21, 2015 9:37 am, edited 1 time in total.

- Fri Aug 21, 2015 3:40 am #26666 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

- Fri Aug 21, 2015 4:03 am #26671 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

- Fri Aug 21, 2015 5:01 am #26674 Hi, haven't looked at the other stuff, but you will need ground on your USB device connecting to ground on your board.