The USB-KW38 is a development platform enabled by the KW39/38/37 family built on the Arm® Cortex®-M0+ processor in a convenient USB dongle form factor. The USB-KW38 can be used as a Bluetooth® Smart/Bluetooth® Low Energy development board such as the FRDM-KW38. The USB Dongle used as a wireless packet sniffer can monitor over-the-air communications.