I look for an RFID tag that gives you the option to 'choose the output'. For example, you want to choose an RFID-output from a list of X possible outputs using a multi-directional switch with X directions.
Does something like that exist? What resolutions of X are there available? How small can it be?
If not, how could you go about designing the thing? Just slide the antenna over the desired Chip from a number of X chips and do some debouncing? Or use just one chip but connect one out of its X inputs with a further circuit and a debounce?! (and what type of circuit?)
Furthermore, how does one tackle higher resolutions for X without making it bulky (as there is just not enough room to make it work with debouncing and different chips and the mechanics and all)?