STMicroelectronics STEVAL-SMARTAG2 NFC Dynamic Tag Sensor Board is an NFC-enabled sensor node with inertial MEMS and environmental sensors. The STMicroelectronics board has an STM32 microcontroller, and a dynamic NFC tag for communication with NFC readers, like tablets and smartphones. Optionally, the STEVAL-SMARTAG2 can be equipped with a battery charger. A full-wave rectifier can feed the charger for NFC energy harvesting (on top of the energy harvester already embedded in the dynamic NFC tag). The device has a secure element to support authentication, state-of-the-art crypto security, and a real-time clock (RTC) with an embedded crystal oscillator to enable accurate timekeeping and stamping.