johnwasser:
Are you looking to sense contact or sense contact from a particular object? Sensing contact would probably best be done with a resistive touch-sensor or a weight sensor (force sensitive resistor). RFID certainly won't give you contact information.If you need to be able to identify a particular object that will be much harder.
I guess the first step would be to sense contact only.
I would like to place object 1 on the board. The grid/sensors would then send a message to the arduino that "an object" is on the board.
I would then place object 2, in a different location. The grid/sensor would send a message saying "another object" is on the board.
Ideally i'd like for it to sense if it is object 1 or 2. I know that would be more difficult though. I thought using an RFID reader below the board, then attaching an RFID tag to each object.
I think the limitation would be how far the reader could sense the tags.
retrolefty:
turd sandwich? So maybe mount a mercury switch to your dog's tail and let him signal if the sandwich is on the surface or not?Lefty
sometimes science needs a little visual aid