[TriEmbed] ESP8266 Serial Connection

[Christian Lilley]

All of the information on the ESP8266 can be found here.
<https://nurdspace.nl/ESP8266>

According to the wiki the baud rate should be 57600. Sparkfun does mention
that a level shifter should be used and that it should not be connected
directly to 5V sources.

Here is an example
<http://allaboutee.com/2014/12/27/esp8266-arduino-code-and-circuit/>using
the Arduino's software serial to communicate with the ESP and the normal
serial lines to communicate with the FTDI board. This guy uses a 9600 baud
rate but I don't know if that is a custom setting he uses.

Christian Lilley | Electrical Engineer

 [image: images] <http://www.gomohu.com/>

919.794.8627 ext 129

christian.lilley at gomohu.com

www.gomohu.com


On Tue, May 19, 2015 at 10:44 AM, Nathan Yinger via TriEmbed <
triembed at triembed.org> wrote:

> So, I have an ESP8266, a new serial adapter (
> https://www.sparkfun.com/products/9873), and I'm trying to get them to
> communicate.
>
> When I power up the ESP8266, it creates a wifi network where I can join
> and ping it, but as far as I can tell, reprogramming it requires a serial
> connection.
>
> When the ESP8266 is powered on, the 'tx' light on the serial adapter
> flashes continuously, which I assume means the ESP8266 is transmitting
> something. Nothing appears in my serial monitor though, not even gibberish.
>
> I'm using the serial monitor that comes with the Arduino IDE, with various
> baud rates and line endings. I haven't found any documentation about the
> byte length, parity, or character encoding used by ESP8266. I get a TTYUSB
> device in /dev when I plug in the serial adapter, so it appears to be doing
> something.
>
> Does anyone know what's required to make the chips do something? Or have a
> working setup they could bring to the next meeting?
>
> Thanks,
> ~Nathan
>
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