ESP8266 Community Forum

- Mon Oct 05, 2015 3:33 pm #30590 I recently bought my first ESP8266. For what I have read on the forum, I think it is a fake -12E version. I have directly pulled to 3.3V (with an external power supply, no resistors) VCC, RESET and CH_PD. I have also pulled low GND and GPIO15.

When I turn it on (with the UART set to 115200 bps), it sends some garbage, and then prompts with message:

Code: Select allAi-Thinker Technology Co. Ltd.

ready

Then, if I write text (e.g. an AT<crlf> or AT+GMR<crlf>), the command is echoed back as I type, but the module never responds with OK or ERROR to the command. The module also gets warm during operation.

Am I missing something? Could it be because the module is fake? Or should I set high/low other pin?

- Mon Oct 05, 2015 3:50 pm #30591 OK, I found the problem, and I'm feeling a bit stupid. It looks like my terminal program (GNU screen) was not sending properly CR+LF at the end of each line. If I send them manually (Ctrl+M, Ctrl+J), then the module responds

Sorry to bother, I hope this post is useful to somebody with the same problem.