STDES-BFTAG01

Active
Design Win

Battery-free light sensor tag based on STM32L0 and BlueNRG-2

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Product overview

Description

The STDES-BFTAG01 is an energy autonomous and battery-free wireless sensor.

The companion STPVTAG app is available for free download on Google Play.

The device implements off-the-shelf components (2 x 2~cm PCB, 4 mm thickness, weight <5 grams).

It features Bluetooth low energy (BLE) communication and can harvest and sense indoor ambient light with a limit of detection of 200~lux.

The board is energetically autonomous thanks to a photovoltaic transducer that simultaneously provides power and light sensing functionality, together with time domain read-out.

The number of tag transmissions to a remote base station, in a given time interval, proportionally varies in relation with light intensity, that is, more light is equal to more frequent broadcasts.

Therefore, the battery-free tag expresses light intensity as a function of time and this phenomenon can be exploited by the base station to convert transmission intervals into accurate expressions of light intensity.

The same concept can be extended to other sources of ambient energy, such as kinetics, thermal, etc.

The STDES-BFTAG01 is a fully assembled board developed for performance evaluation only, not available for sale.

  • All features

    • Wireless energy autonomous light sensor
    • Limit of detection > 200 lux
    • Bluetooth low energy communication
    • Communication range: 5 meters
    • Tag size: 2 cm x 2 cm
    • Tag thickness: < 4 mm
    • Tag weight: < 5 g
    • Radio activity control
    • Advertising time control
    • Over-the-air configuration

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STDES-BFTAG01
Active
- Industrial - Yes

STDES-BFTAG01

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Material Declaration**:

Marketing Status

Active

Package

-

Grade

Industrial

RoHS Compliance Grade

-

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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STDES-BFTAG01 Active

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Part Number:

STDES-BFTAG01

Supplier:

ST

Core Product:

BlueNRG-2, STM32L0

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors