Dev kit adds Bluetooth and 802.15.4 connectivity

NXP has introduced a development kit which adds Zigbee or 802.15.4 connectivity to designs.

element14 NXP Freedom dev kit for Kinetis K22x

Called FRDM-KW24D512, it is based around the MKW24D512 microcontroller which has a 2.4GHz IEEE 802.15.4 radio transceiver and an ARM Cortex-M4 processor.

“The kit contains two boards, enabling point-to-point out of the box connectivity. It has a diverse reference design with all the necessary I/O connections for use as a self-contained board or for connection to an external application,” said element14, which is supplying it.

Board have integrated inverted F-type antenna and SMA RF ports, and alongside the hardware, there is software support for Thread, ZigBee Pro, 802.15.4 MAC and SMAC. There is also the Kinetis Software Development Kit – the MUC is a Kinetis W chip.

element14 NXP Freedom dev kit for Kinetis K22x - 2They can work stand-alone, or with NXP’s Freedom development platforms.

Applications in smart energy and healthcare are expected, as will as using in commercial, industrial and residential equipment.


  • Supports MKW24D512 Kinetis microcontroller (up to 50 MHz Cortex-M4 MCU, 512 KB Flash)
  • Full IEEE 802.15.4 compliant wireless node
  • Software support: Thread, ZigBee Pro, 802.15.4 MAC and SMAC, Kinetis Software Development Kit (SDK)
  • Reference design area with small footprint, low-cost RF node:
    • RF circuitry includes a Balun to convert the differential input/output pin of the MKW24D512 transciever to single-ended for on-board signal routing
    • Low off-chip component count
    • Programmable output power from –35 dBm to 8 dBm at the SMA connector, no trap
    • Receiver sensitivity: –102 dBm, typical
  • Integrated PCB inverted F-type antenna and SMA RF port
  • Selectable power sources
  • 32 MHz reference oscillator
  • 32 kHz clock oscillator
  • 2.4 GHz frequency operation (ISM Band)
  • External serial flash for over-the-air programming (OTAP) support
  • Multiple push buttons and LEDs
  • OpenSDA debug interface
  • Combo sensor, 6-axis sensor with integrated linear accelerometer and magnetometer


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