Laser Pointer Interface

A web camera can be used to analyze a projected area to find bright red spots and use them as an input method. Here I demonstrate my setup at home; I use the laser pointer to control a presentation and browse the web. This can be implemented with a simple web camera and laser pointer and can be used as a simple mouse emulator, or as a different kind of input device with different abilities. It has broad applications, from games to business.

Category:

Howto & Style

Tags:

• Laser
• projector
• mouse
• emulator
• input
• device

[PIKACHU49386]

does it work on a monitor?

[bobbaddeley]

In my testing, it did not. You need the light to be reflected back to the camera, and both flat panel monitors and regular CRT monitors try to reduce the reflections (also known as glare) as much as possible. Monitors are also a lot brighter than projectors, so the threshold would be a lot narrower and you'd likely have false positives. Under the right conditions, you might be able to find a monitor that could maintain a bright laser spot that the camera could see, but it's not likely.

[EvendimataE]

is there a download site?

[908205691838]

that means ur laser gives of ir

[Robobbly]

can you send me the program

[eyucel1076]

pretty sure that is not a smart board, one can do it actually easily on a wall, I do it with a wiimote and a laser pointer.

[marshalnd]

pretty sure thats a smart board

[PIKACHU49386]

well why not reducing the brightness on the screen?

i use LCD or whatever its called

[TheSchimmi]

you're lazy, that's awesome.

needs a little work, but pretty cool, maybe a laser pointer in red and green, red for left click, green for right click. and screw dragging, that isn't that good.