STEVAL-SMARTAG1 NFC Sensor Node Evaluation Board STMicroelectronics STEVAL-SMARTAG1 NFC Sensor Node Evaluation Board is a smart, flexible NFC Tracker evaluation board. The board includes sensors, a comprehensive software library, and a sample application to monitor and log sensor data over NFC from an Android or iOS device. The board mounts an ST25DV NFC Tag, an STM32L0 ARM Cortex M0+, environment sensors (temperature, humidity and pressure) and motion (accelerometer) sensor. The STMicroelectronics STEVAL-SMARTAG1 NFC Sensor Node Evaluation Board features NFC harvesting to supply power and a battery cradle for a CR2032 battery.