batteryless UHF RFID sensors family

ASYGN UHF RFID sensors provide unmatched data accuracy for low-cost environmental monitoring. Simple to integrate and compatible with standard RAIN RFID readers.

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AS321X family

Light

AS3213L.3

Ext. Capacitive

AS3213C.4

Software

Fixed reader LLRP software for Impinj and Zebra

Supported readers:
Impinj Speedway R220, R420, R700 series
Zebra FX9600

Supported OS:
Windows 11
Ubuntu 24.04 or newer

Handheld reader software for Zebra MC3300 

Temperature

Relative Humidity

Strain

See our sensors in action live 24/7

Discover our cloud demo: you can follow real time temperature and humidity evolution at our premises thanks to our RFID sensor chips. 

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Other resources

Antenna example design

DXF for bare dies
Gerber file for temperature, humidity, strain (provided: temperature)
Gerber file for AS3212 (provided: pressure sensor)
Gerber file for AS3213C (provided: accelerometer)

FAQ

Access to datasheets and applications notes, when protected by password, is granted upon the signature of an MNDA between your organization and ASYGN. Please reach out to our sales team through our contact form.

Sure. You can use provided DXF (for bare dies) or gerber files (for QFN chips) from our demonstration tags as base to develop your own tags.

Resolution for the temperature sensor can achieve 0.125°C while accuracy will depend on calibration and can be as tight as ±0.5°C.

Data is available in the USER memory bank of the chip, together with its calibration words. No special command or operation is needed.
Optionally, it is possible to get data along with the EPC during the inventory round.

Sensor measurements are available as raw data in the chip memory. A conversion formula is provided in the chip Datasheet and in the Application Note “AN01” of each chip.

While the acquisition chain itself is the same for all the chips, temperature provided by the AS3213T variant of the chip has a different equation to support higher precision.
Please refer to the specific datasheet and Application Note for your chip variant.

It is not possible to define a data rate for the chip, since it depends on the reading rate on the reader side. A single measurement is performed per reader read. Achievable reading rate is about 80 measurements/second. ASYGN can provide support to help you develop high rate measurements.

Yes, this is possible using the “Sense in EPC” feature and it is the quickest way to get sensor data.

The AS3212 and the AS3213C support external resistive and capacitive sensors respectively. This includes thermistors, piezoresistive sensors, magnetic sensors, accelerometers, pressure sensors, and more. The chip can provide a regulated 1V power supply to the external sensor if needed. With AS3212, the sensor impedance must be greater than 1KΩ.