[GreenKeys] ESP8266 WiFi Module UART

[epvgk at limpoc.com]

On Sun, Dec 27, 2015 at 01:23:55PM -0500, Steve Garrison wrote:
> Does that 3.3V go to the Vcc pin on the device?
> 
> The device itself is much cheaper that the eval board we've bought in the
> past.
> 
> Have you ordered one or more of these and found them easy to use?  What
> about import duties?  Do the actually apply or can that statement on their
> website be ignored?
> 
> Steve G./N4TTY

I ordered a number of those 99c CP2102 boards and the ones I received did not
work at 45.45 baud. The programming utility reported success programming them,
but the programmed settings were ignored.  Certainly all of these are counterfeit
chips, and it probably depends on how thorough the forgery is for the particular
run of chips you get. They're so cheap it's probably worth buying a few just
to try your luck. 

I actually considered lifting off the fake chip and soldering a real CP2102 from
digikey in place of it, because the board is nice and small and cheap, but I haven't
tried it yet. 

eric

> 
> -----Original Message-----
> From: GreenKeys [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of John
> Nagle
> Sent: Saturday, December 26, 2015 2:26 PM
> To: greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] ESP8266 WiFi Module UART
> 
> The minimal device for 45 baud is this $0.99 USB to serial converter:
> 
>      http://www.ebay.com/itm/like/121651178882?ul_noapp=true&chn=ps&lpid=82
> 
> You'll have to reprogram it to go 45 baud, using this:
> 
>      http://www.aetherltd.com/connectingusb.html
> 
> That gets you 45 baud at 3.3V; you still need level conversion.
> 
> 			John Nagle
> 
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