ESP8266 Community Forum

I apologise for what is probably a simple question. I have (what I believe to be) a model 2 board (LED near the antenna). Now, I have connected the Vcc and GND to my 3.3v regulated PSU. I have connected also connected CH_PD to VCC. UTXD is going to RX on the TTL and URXD is going to TX on the TTL. All is connected and switched on. I am able to see the ESP wireless access point signal and my TTL is reporting as COM4 on my Windows 7 computer. I have also tried connecting the GND pin of the TTL to the GND of the PSU.

I open Terminal, with a Baud Rate of 115200, Data Bits 8, Stop Bits 1. Connect and I do not get anything response from the ESP (I have tried powering on and off the device).
The TTL works fine it I jumper the RX and TX together (echo).

Any help / pointers very much obliged.

Thank you in advance,
Harold Clements

Some quick pointers:
- newer boards communicate often at 9600 baud
- make sure that your terminal emulator sends a CR+LF after each command, some emulators are set to CR only.

Thank you very much for your reply, but alas no luck

I have also tried using the RX TX of my Arduino and use the Arduino serial monitor, but to no avail.

As I have said, I am a newbe so please excuse the ignorance of my questions. As the ESP is reporting as a WiFi access point (and can be connected) would that suggest that it is working 100% and it's something that I am doing wrong, or could it be that the serial communication part of my device is faulty?

Thanks again for your help,
Harold Clements

you cant use arduino rx tx with atmega chip. if you remove atmega on board and try again propably it will work