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Proximity Detector: Inductive or RFID

Other Parts Discussed in Thread: FDC1004, MSP430G2553

Hello All

We are looking for solution to Proximity Detector.

The detection range is approx. 20 cm, environment is half wet and some metlic objects.

Can you reccomend on the proper sensing technology ?

RFID ?, Inductive Sensor ? Capacitive?

Does TI have solutions on that field ?

Regards

HNRFGUY