I am helping a teacher developing a project for her physics/Math class.
What i need to do is a piece of cloth with different fields on it.
My plan is to sew a pattern in each field, and then have my arduino detect it when the field is being touched by some of the students.
I have bought some conductive thread to be used.
Does any of you have a good idea of how to detect when the wire is being touched. I would like to make it cheap if possible.
I have thought of just using 1 wire per field, end then detect it somehow.
If that is to hard to do with maybe 16 different fields on the cloth, i could use 2 thread per field and detect it, when the students shortcurcuits the wires.
At the moment i think 16 different fields is the maximum, but it might be expanded in the future.
I am looking forward to hear your suggestions.