ARDUINO PRO MINI module Atmega328 5v 16M Arduino pro mini module The default
configuration: ATMG328 5V 16M 1. Fully compatible with the official website
of modules. 2 increase on the basis of the original A6, A7 port. 3 to
increase on the basis of the original increase in power output. 4 increase
on the basis of the original to to prevent reverse the diode to protect the
USB port. 4 increase on the basis of the original self-recovery insurance,
short-circuit proof.