ESP8266 Community Forum

- Sun Feb 26, 2017 9:22 am #63049 I am having a connection issue with the ESP8266-01. All I get is gibberish on 9600 and 115200 baud rate. I get some intelligent feedback with a 74880 baud rate. But cannot get a response back with the "AT" command. I have downloaded some screen shots and my set up. What am I doing wrong. Thanks in advance.

EAP8266 USB setup_bb.jpg

74880 baud Cariage return.JPG

74880 baud Cariage return.JPG

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- Sun Feb 26, 2017 4:24 pm #63071 You need a common GND. Connect GND on the cp2102 to GND on the ESP.

- Mon Feb 27, 2017 6:10 pm #63110 Thanks for help Jeffas. It did not work. I tried it with 115200 baud and I get some gibberish the company name and then a response of "invalid" Any help will be greatly appreciated.

- Tue Feb 28, 2017 4:58 pm #63150 "invalid" is a response, so the basic serial comms must be OK.
I see in your earlier screenshots that you have set line ending to "Carriage return".
You should set it to "Both NL & CR".
If it still doesn't work, there's probably something wrong with the AT command that you're sending. Post the text or a screenshot here.