[TriEmbed] ESP32 references

[Pete Soper]

There are bags of existing boards to solder the ESP-32S modules Mike 
Lisanke is waiting for onto now.The 32S is identical in terms of PCB 
footprint and replaces the 3212, according to a few sources. The 
equivalence between ESP-WROOM-32 and ESP-32S seems less sharp.

Breakouts on Tindie:

   https://www.tindie.com/search/#q=esp32s

Searching the OSH Park shared boards produces about a half dozen hits, 
including this one:

   https://oshpark.com/shared_projects/bamsJY7J

Here's a nice info page about carrier/dev board+module offerings with 
boatloads of info links:
    http://esp32.net/

This goes along with the metric ton of info here:
    http://www.esp32.com/

Here's a British product where the raw ESP32 chip is combined with a 
flash chip into a custom module and that's on a carrier with FCC 
approval (see below) and that is all put on a second board offering more 
stuff like an SD slot with MicroPython:

    https://www.pycom.io/product/wipy-expansion-board/

Their FCC docs:
https://apps.fcc.gov/oetcf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout=500&calledFromFrame=N&application_id=0x7u0CB4ZocdByFKw8HTxA%3D%3D&fcc_id=2AJMTWIPY2R

-Pete