To be able to display fixed or animated simple pictures or some characters from a PC, this project demonstrates the construction of a very low cost X Y scanner for a laser pointer. To be able to ...

I’m sure all of you reading this have seen or used a laser pointer at some point in your life, or maybe you’ve even bought one online. But have you ever paid attention to the warning signs on your ...

The handheld laser pointers you can buy at office supplies stores are legally required to be no powerful than 0.005-watts, and most fall well below that threshold so they’re relatively safe to use.