I designed it. I'm a EE by trade. Its nothing really complicated. There are other similar designs around. I just put the functions in that I wanted for my plane.
If you give your email address I can send you a copy of the little manual that I wrote up to help folks hook it up. Basically it has two inputs for each output. You can pick whether you use the active high or the active low input to light up the indicator. There is a push to test function that lights all of the lights which is a function that I wanted. Also there are a few passthrough signals so you can keep the wiring clean if you want to add any switches besides the push to test.
I plan to use it with my G3X system when I get to the point of that purchase. I put lots of options in for how it can be used. It's probably best to look at the manual, then ask questions.
Also if you want I could send you the file for the frame that I had fabricated at Front Panel Express.
2018 Donation Paid
RV-7 Fuselage in progress
* Rolled the Fuselage
RV-7 SB Wings
* Both Wings fully skinned
* Fuel Tanks Complete - No leaks finally
* Ailerons Complete
* Flaps Complete
RV-7 Empennage - Complete (a little fiberglass work left)
Vans Training Kit # 2 - Complete
Shop Setup - In Progress (Gathering Tools, Never Complete)
RV-7 Preview Plans
Vans Training Kit #1 - Complete
EAA Sheet Metal Class - Complete