I've got a question regarding feasibility for a project I'm thinking about. All hypothetical right now.
It's fairly complex project, but I'll try to simplify it to get to the core of my question.
Imagine I have a board with four squares on it, a similar board next to it with five LEDs in each square (1 blue, 1 green, 1 red, 1 yellow, 1 white), and four blocks (1 blue, 1 green, 1 red, and one yellow).
Now, this is what I want to do; If I put the blue block on the first square on the board, the blue LED should light up in the corresponding square on the other board. If I put the green block on the second square, the green LED should light up in the second square on the other board, and so on. If there are no blocks on one of the squares, the white LED should light up on the second board in the corresponding square.
If I'd move the blue block from the first square to the third square, the blue LED in the first square would turn off, and the white LED would turn on, the white LED in the third square would turn off and the blue would turn on.
So, in essence, what I want to do is be able to identify an object that is sitting on top of a surface and carry out a command as a result of it.
Is this at all feasible? I think NFC/RFID technology could possibly solve this. What are your thoughts? Are there other options?
Many thanks for your help and thoughts!