[NTLK] Designing an Internal WiFi Board for MP2x00

Jake Bordens jake at allaboutjake.com
Mon Feb 2 17:13:38 EST 2015

So I've been slowly working towards a PCB design for an internal wifi 
board.  Again, the WiReach wifi module has a PPP server on board so that 
Newton Internet Enabler can "dial up" to a wifi modern wifi network with 
modern encryption settings.  Max speed seems to be 119200 baud.

I am not a hardware engineer (but I know just enough to be dangerous) so I 
posted my current thoughts at the following URL:


If there are any EE's in on the list that would care to set me straight 
and tell me how horrible this is, it would be appreciated.  In all, the 
board is pretty simple, a 3.3v regulator to power the module off the 
battery leads, the module itself, some decoupling, and some connections to 
the Serial3.  Not really complicated.

Also if anyone has any "real" measurements for the PCB mount points and 
connector placement, I'd be interested.  My current design is 6 iterations 
of trial and error.

The next challenge will be finding a good antenna solution.  I have a 
bunch of antennas on order and I intend to try out some ideas.

Thanks for any input.


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