New integrated NFC tag/sensor devices: how low-cost, low-power RF technology enables new applications
An NFC-enabled sensor is ideal for low-power and low-cost applications in which sensor data must be collected without a wired connection. This is because:
- it requires no external power source, since the sensor interface operates on energy harvested from the NFC reader’s incoming RF emissions
- it is quick and convenient, because the sensor pairs instantly and automatically with the host device
- it is tiny
- it is cheap
This paper describes the architecture of an RF-enabled sensor system. It explains the difference between passive and semi-passive operation, introduces the SL13A sensor tag from ams, and describes some of the applications in which it can be used.
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