Description
The STEVAL-SMARTAG2 is an NFC-enabled sensor node with inertial MEMS
sensors and environmental sensors, an STM32 microcontroller, and a dynamic NFC
tag for communication with NFC readers, such as tablets and smartphones.
Optionally, the STEVAL-SMARTAG2 can be equipped with: a battery charger fed by a
full-wave rectifier for NFC energy harvesting (on top of the energy harvester already
embedded in the dynamic NFC tag), a secure element to support authentication and
state-of-the-art crypto security, and a real-time clock (RTC) with an embedded crystal
oscillator to enable an accurate timekeeping and time stamping.
The board has a small and thin form factor, comparable to the size of a credit card,
which makes it particularly fit for deployment in the field and data collection.

Features
• NFCSENSORTAG.BOX: optimized form factor and encapsulated in a plastic
case for testing
• ST25DV64KC-JF6D3 dynamic NFC/RFID tag IC with 64-Kbit EEPROM and
fast transfer mode capability
• STM32L4P5-CGU6 ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 150
DMIPS, up to 1-MB flash memory, 320-KB SRAM, LCD-TFT, external SMPS
• LSM6DSO32X iNEMO 6 DoF inertial module with 32 g accelerometer and
embedded machine learning core
• LIS2DUXS12 ultra-low-power 3-axis smart accelerometer with machine
learning core and Qvar
• H3LIS331DL MEMS motion sensor: low-power high-g 3-axis digital
accelerometer
• LPS22DF low-power and high-precision MEMS nano pressure sensor:
260-1260 hPa absolute digital output barometer
• STTS22H low-voltage, ultra-low-power, 0.5 °C accuracy I²C/SMBus 3.0
temperature sensor
• VD6283TX Ambient Light Sensor with Hybrid filter multispectral and with
embedded light flicker engine
• STLQ020 200 mA ultra-low quiescent current LDO
• STBC15 ultra-low current consumption linear battery charger (optional
component, not populated)
• STSAFE-A110 authentication, state-of-the-art security for peripherals and IoT
devices (optional component, not populated)
• M41T62LC low-power serial real-time clocks (RTCs) with alarm (optional
component, not populated)
• CR2032 or LIR2032 battery powered (not included)
• STM32Cube function pack (FP-SNS-SMARTAG2)
• End-to-end proof of concept ecosystem mobile app and cloud dashboard:
– DSH-ASSETRACKING web cloud dashboard
– STAssetTracking mobile app available on Google Play and App store
• Suitable for the following applications:
– Internet of things
– Supply chain and cold-chain management
– Smart building, home, and city
– Retail and apparel
– Smart packaging
– Medical and pharmaceutical
– Batteryless sensing
– Smart agriculture (soil control, animal tracking)
– Asset tracking
– Impact detection