New guy needs some direction please!...

[Hitchhiker 42]

Originally Posted by adciv

Alright, lets say "Red" is no job and "Green" is job. I'm also assuming the buttons for this are in fixed locations on the screen.

Setup all the tablets on a table, point a USB webcam at the tablets. Apply an HSV filter to what the camera sees to detect Green. All buttons are maped to a grid that corresponds to the pixels in the camera. In this way, when green is detected, the system knows which button is green.

Hard part: Get a device that lets you replicate a human touch. Stick these over every button on the screen. Whenever you get "Green" at that button, activate the device corresponding to it.

For the device that replicates human touch, you might just want one of those gloves that let you use your phone like this: https://www.amazon.com/Hi-Fun-HFHiCA.../dp/B009NBRXLQ. Use one finger for this.

[DaveL]

If the target is in a fixed location and no one is counting false touches,
you could simplify the design by constantly tapping the screen, like the example given above.