Jennic Wireless Microcontrollers

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JenNet Protocol Stack

JenNet is a network protocol stack designed to work with our family of wireless microcontrollers and modules. JenNet allows wireless sensor networks to be easily built, from simple point-to-point cable replacement to complex tree networks.

JenNet supports star, tree and linear network topologies, and provides self-healing functionality for robust communication. Developed on the IEEE802.15.4 standard, which operates in the globally unlicensed 2.4GHz band, JenNet co-exists with Wi-Fi and Bluetooth.


Interaction with JenNet is achieved via an easy-to-use 'C' programming interface.

This interface provides simplified access to all network  functions, reducing the need for designers to understand the complexities of wireless networks.


  • Available for JN5148 wireless microcontrollers and modules
  • Available for JN5139 wireless microcontrollers and modules
  • Based on IEEE802.15.4 MAC and PHY
  • Supports Star, Tree and Linear topologies
  • Recommended network size up to 500 nodes
  • Automatic route formation and repair
  • Network load balancing to avoid data throughput congestion
  • Network re-shaping to reduce network depth
  • Sleeping End Devices for extended battery life
  • Leave Request function supports moving nodes
  • End-to-end message acknowledgment
  • Over-the-air download
  • Statistics for network maintenance


JenNet network layer

    Manages: network formation, network discovery, network joining and repair, and sending/receiving packets to/from neighbouring nodes


  • Easy-to-use and ideal for proprietary network topologies
  • Small memory footprint
  • Co-existence with Wi-Fi and Bluetooth
  • Reliable and robust communication
  • Secure communication (128-bit AES encryption)
  • Low-power operation for battery-powered end devices (typical up to 2 years)


  • Cable replacement point-to-point
  • Street lighting applications
  • Automatic Meter Reading (AMR)
  • Remote control
  • Building access control
  • Security systems
  • Active RF ID applications (e.g.asset tagging)