Introduction of Versa Network Development Kit
Versa ZigBee Network Development Kit provides a Wireless Sensor Network application platform based on JENNIC JN5139 wireless micro-controller. Compared with JN5121, JN5139 provides a larger-capacity RAM with 192kB. And the sleep current of JN5139 is less than 0.4μA. The receiver sensitivity is -97dBm. The signal strength of JN5139 is 3dBm. It contains 802.15.4 / ZigBee stack and hardware required to develop and monitor wireless sensor network products. Versa ZigBee Network Development Kit supports star and tree network with a reliable coverage over large areas, greater distances and up to 65,536 nodes, more than a simple network protocol will allow .The standard development kit contains one coordinator and two end-devices (or routers). Expansion boards and ZigBee enabled modules allow networks of any size to be easily constructed.

Features :
- ZigBee network stack;
- Star and tree network;
- Simplified programming interface;
- Library building for coordinator, router and end-device.

JN5121 Module
- 32-bit RISC CPU;
- Deep sleep current <0.4μA;
- Receiver sensitivity -97dBm;
- Signal strength +3dBm;
- 192kB ROM stores system code, including protocol stack;
- 8kB, 16kB, 32kB or 96kB RAM stores system data and optionally bootloaded program code.

Hardware
Coordinator
- JN5139 module;
- USB connection with PC;
- 2 LED indicators;
- 1button;
- JN5121 I/O port.

Router (or End-device)
- JN5139 module;
- Extended board allows additional components;
- 2 LED indicators;
- 1 button;
- 1 RS232 port;
- JN5121 I/O port;
- 2 analog IO port;
- 3 digital IO port.

Software
Development kit
- Wireless network libraries;
- Micro-controller and peripheral libraries.

Features
- Rapid prototyping and development of wireless applications;
- Easily creating applications by simply customizing the example;
- Greatly enhancing development of ZigBee Network 1.0 compliant applications;
- Standard 'C' development environment;
- Simple API.