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
Other robots from Synthiam community
Andy's The Great Madame Ninndo Project
The announcer using an older Scary Terry board. Video 1
Bret's Next Hack - Robot B9
Now that I have finished B.O.B., my get your feet wet bot, I have begun my next hack. This next robot will bridge the...
Luis's Using The Sure Dc Ss503v100 With Ezb4 From Ez-Robots
Using the Sure DC SS503V100 with EZB4 from EZ-Robots Using UART Communication We will be using these pins on the Sure...
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.
It usually takes two coats as the first coat is usually partially absorbed by wood when you are trying to seal it.
https://www.gofundme.com/68cigk8
The ultrasonics where just sitting in the holes which is why they look all wonky.
Aaaaand from the rear
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.