[GreenKeys] ESP8266 WiFi Module UART

[epvgk at limpoc.com]

On Fri, Dec 25, 2015 at 10:59:14PM -0300, Javier Albinarrate wrote:
> Ok, you all guys provided the exact thing I needed, a push to try to get a
> couple of these modules and play with them :)
> I don't have much hope as low bauds and/or 5 bits are always problematic
> these days... but if it works, it will solve all my wiring nightmare and
> controllers very easily.
> 
> Regards and happy holidays!
> 
> Javier
> LU8AJA

Philips LPC arm mcu modules will do 5 bit, 45 baud with no problem, but as someone
else mentioned it does depend on being able to divide the clock down enough. Though
arm cores do seem to have pretty flexible clocks these days, I woudn't be surprised
if you could make it use some slower secondary clock as the async serial clock
reference or something. 


> 
> 
> On 2015-12-24 07:08, simon wrote:
> >Looking at the arduino core for this chip, it should be possible:
> >https://github.com/esp8266/Arduino/blob/master/cores/esp8266/HardwareSerial.h
> >
> >
> >5n2 and 5n1 are defined there. It seems that the bigger esp pcb's even
> >have a second uart.
> >
> >last time I looked, the arduino core was not ported yet
> >
> >simon
> >
> >On 23-12-15 19:30, Javier Albinarrate wrote:
> >>Hello folks,
> >>
> >>This is probably just a big wish for Christmas... but anyway...
> >>Has anyone tried this module to see if its UART can be set to low baud
> >>rates and 5/6/7 bits? Perhaps by tweaking its firmware? In the end there
> >>must be registers, multipliers and divisors somewhere.
> >>
> >>https://www.sparkfun.com/products/13678
> >>
> >>They have a forum, http://www.esp8266.com/ but I have not seen in depth
> >>manuals so far.
> >>
> >>Regards!
> >>
> >>Javier Albinarrate
> >>LU8AJA
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