As I wait for the PCB to arrive, I was thinking of ways to improve the system.  I saw a video of someone using servo and current sensors to automatically control the doors on the collection system.  So I start the process of designing a servo control board that will interface with the existing system. While the design is still only a few days old and untested; I figured it was far enough along to share. 

Again, this board was designed with a non-electric/computer person in mind.  All the setting would be accessible from the PCB and did not require a PC to set up and managed.  The settings include a 3-way switch to force the gate open, closed or put the system in “Auto Mode”.  5 Pots control versus thresholds.

• 2 controls the threshold for when the power level is high/low enough to trigger the “On” or “Off” state of the woodworking hardware
• 2 controls the servo arm’s “High” and “Low” setting
• 1 controls a delay-off to allow the system to delay the motor off time to allow for additional time to push dust into the collection tub