Kudos to the author for a cool reverse-engineering job. Nice hack. The sign wasn't the most problematic "mininum viable product" I've seen. If it were a rapi

Kudos to the author for a cool reverse-engineering job. Nice hack. The sign wasn't the most problematic "mininum viable product" I've seen. If it were a rapidly developed first prototype, I'd even be impressed. I would bet they spent significantly more than $3 on the packaging and miscellaneous BOM items. I was going to say the wiring harness alone would be much more than that, but it looks like most of it is included in the Adafruit panel kit.