Trying to understand if with current capabilities of Bluetooth 4.0 / Smart / BLE, is it possible to detect a passive RFID TAG, within a very short range (less than 5cm).
New phones both Android/iOS are to abandon NFC as far as I know, so does this mean that Passive tags are just no longer supported on these phones?
To be more precise: I am not looking for anything fancy.. In fact I just need to be able to detect the presence of one passive tag. No security or anything more complex.
Also, not to imply that this question regards specifically existing TAG product, also it would be nice if there is. I am willing to develop a new circuit, if that's possible...