Custom Aux display board

[tomcourt]

A custom aux display board would make Enguino easier for installers.

A single HT16K33 LED drive chip could be used for both displays as one chip can support 8 LED digits.

A smaller 7 segment LED modules could be used to allow fitting the display in a 2.25" hole.

A long posted tactile pushbutton switch mounted to the board that would go through a small hole on the display (similar to a digikey EG4356TR-ND) could replace the current switch. The switch wire could be eliminated from the harness if 2 or 3 separate switches are attached to the chip. More switches would be required as the chip can only detect presses, not holds. Switches was be ack/+ and show, pressing both could control dim.

Need to figure out level of interest to figure out method of assembly. A stencil and solder paste for the surface mounts and hand soldering the through holes would probably suffice up to 100/year. Should price out board houses as well.