JenNet Protocol Stack
JenNet is a network protocol stack designed to work with Jennic's 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 Jenie and AT-Jenie easy-to-use interfaces: Jenie is a 'C' programming interface, whilst AT-Jenie is an Alpha-numeric Textual API which can be embedded, accessed through the on chip UART for dongle applications, and passed over the network layer between devices.
These interfaces provide simplified access to all network and microcontroller functions, reducing the need for designers to understand the complexities of wireless networks.
Features
- Available for JN5148 Jennic wireless microcontrollers and modules NEW
- Available for JN5139 Jennic wireless microcontrollers and modules
- Based on IEEE802.15.4 MAC and PHY
- Supports Star, Tree and Linear topologies
- Recommended network size up to 250 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
Jenie and AT-Jenie
- AT-Jenie provides an Alpha-numeric Textual network layer API
- Jenie is an easy to use ‘C’ programming API
- Ease-of-use
- Access to system services and peripherals
- Tunnelling of peripheral commands
JenNet network layer
- Manages: network formation, network discovery, network joining and repair, and sending and receiving packets to/from neighbouring nodes
Benefits
- 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)
Applications
- 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)