Skip to comments
Hello all, while working this project I only updated the competition site but given I am using EZ Robot it’s roots are here in the community.
Here is the latest update on the custom invisible QR code for discretely marking the inside of your homes furniture, doors, floor, or ceiling with codes that only illuminate when you hit them with the correct nanometer light 405nm or 780nm IR/UV 
https://www.gofundme.com/68cigk8
By jstarne1
— Last update
6 ply mdf wood glued together and clamped. I used a bandsaw to cut the shape of the body. A quick test fit shows I had to trim out the front so that the top will sit all the way down.
No led on at all , invisible
With no QR code to focus on , the light just looks incredibly bright similar to the same nm laser diode I tested.