Arduino Multiplexer Shield (stackable)

An Arduino Shield with a Single 16-Channel CMOS multiplexer (DG406DJ) and custom output pin.
Single-sided pcb milled with Geil-o-mat using metaboard.sh script to convert .brd files to .ngc ready for CNC milling.

Used for Arduino Power Monitoring Impulses Purposes, 128inputs multiplexed to 8inputs over Arduino - ATMEGA328.
Actually running and monitoring ~100 active server racks with XML output on arduino ethernet shield