ESP8266 Community Forum

- Thu Sep 11, 2014 8:11 pm #464 Hey, I used that code sample and hooked it up according to the diagram on the page, doesn't seem to work I just keep getting "ESP8266 Demo
Module have no response."

[RichardS]

- Thu Sep 11, 2014 9:21 pm #465 I do not have a module yet, TX RX connected the right way round?

Richard.

Surplus parts
https://epartsconnect.com

Live realtime stock market prediction website. https://www.stocksignalslive.com my latest creation. Uses AI and machine learning.

New site featuring ESP8266 and ESP32 projects. tutorials, and news.
http://EverythingESP.com

ESP8266.com Founder and Administrator
The Mind Factory (get more from your 3D printer)

Home of the ESP8266, ESP8285, and ESP32 microcontrollers....

- Fri Sep 12, 2014 5:56 am #478 https://github.com/534659123/OCOROBOT-W ... no-library

- Sun Sep 14, 2014 10:10 pm #555 Level Shifting needed for 5v systems
I'm sure this has been mentioned, but it seems people are still having trouble.

I needed to add a voltage divider on the UNO TX -> ESP RX line. Failing to do this resulted in garbage from the ESP.

Arduino RX picks up the 3.3v signal just fine though.

Arduino clocked at 8Mhz can't do 115200 Baud
It seems the error level is just too high.
see (http://www.wormfood.net/avrbaudcalc.php?postbitrate=9600&postclock=8)

I believe changes in baud rate will be possible 'soon'.