Kinetis MKW21D256VHA5
https://csa-iot.org/csa_product/kinetis-mkw21d256vha5/
The Freescale Kinetis KW2x wireless MCUs offer unmatched performance with the integration of a class leading IEEE 802.15.4 RF transceiver with an ARM�� Cortex��-M4 core. The KW2x platform is ideal…