Im going to make a interactive display on wall which have a monitor mount on tracks, can move up down or left right , play videos when it slide to Specified area. Are there any sensor to tell its x,y axis? I have think about using laser, but not reliable to use on a movable object. Or use something like a mouse Scroll wheel ? Any Suggestion?
What kind of motors are you using to move the monitor? If using stepper motors, the distance per step is known and the monitor position will be known by counting steps. Look into how CNC machines with steppers work.
groundFungus:
What kind of motors are you using to move the monitor? If using stepper motors, the distance per step is known and the monitor position will be known by counting steps. Look into how CNC machines with steppers work.
It's move by audience's hand and sent the coordinate to arduino.
If there's a rope connected to the object you could wind that around a pulley, and use an encoder (indeed like the mouse wheel) to count the distance. Don't use that pulley to wind the rope on, as otherwise the diameter changes.