This circuit is a new type of comparator. A microcontroller checks the input voltage against a data table that tells it whether to turn it's output on or off. This is repeated 4 times for 4 different outputs. The data tables are written by the user using pushbuttons or external trigger/gate sources.

Demos, build documentation, drill guide, are available here.

Unfinished panels are drilled by hand in my garage, they are bare aluminum that may be scratched.  They are intended to be painted, etched or otherwise finished later.

Pre-Assembled Modules are built after the order comes in.  Build time can be a few days or a few weeks depending on what parts I have on hand.  When ordering, please leave a comment at checkout if you have preferences on what color(s) the panel is painted.