Judging from this first project, a DIY pressure plate switch, we think there’s going to be a common theme to follow. [Rich] constructs his pressure plate for almost no cost using cardboard ...
Next they install a pressure switch which disables the laser when ... The result is what they call the PCB/Mounting Plate/Educational Schematic/Acrylic thing. Of course, exposed connections ...
The annual cost for the specialty plate registration is $25 in addition to the customary plate switch out and state registration fees. Revenues generated by the annual registration fees of the ...