Photos: https://photos.app.goo.gl/JBW4wv51Eb6RX1ej8

Board markings

PLD-PZ005-V1.9.
12/13/2018

wifi module

TYWE2S

pins on flat side (bottom)

3v3
gnd
rx
tx
12
14

pins on side with components

rst
ad
13
04
05