LaserCutter counter
The idea is to add a mechanic counter on the laser cutter that cannot be reset.
There is a pin on the laser controller that can be used to find out if the laser is activated or not. (5v when inactive and 0v when active)
So... we need an extra pins to find out if the laser cutter is powered on.
The 2 inputs are protected behind optocouplers.
Info
Date: October 2012
Last updated: February 2013