FRDM development board for KW39/38/37 MCUs with 2.4 GHz Bluetooth® LE and generic FSK wireless connectivity and CAN/LIN connectivity solutions The FRDM-KW38 kit contains FRDM board that can be used as a development board or a shield to connect to a host processor. The FRDM-KW38 highly sensitive, optimized 2.4 GHz radio features a PCB F-antenna which can be bypassed to test via SMA connection, CAN and LIN transceivers, 4-Mbit external serial flash, multiple power supply options, push/capacitive touch buttons, switches, LEDs and integrated sensors.