MNZB-DKC-900 MeshNetics, MNZB-DKC-900 Datasheet - Page 29

• Manufacturer Part Number: MNZB-DKC-900
• Description: KIT DEV ZIGBIT 900 COMPLETE 1YR
• Manufacturer: MeshNetics
• Type: 802.15.4/Zigbeer

Specifications of MNZB-DKC-900

• Frequency: 868MHz, 915MHz
• For Use With/related Products: MNZB-900-B0
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 758-1009

4. WSNDemo Application
© 2008 MeshNetics
4.1. Overview
The network performance of ZigBit platform is demonstrated with the WSNDemo
application which is based on the BitCloud software API. This application comprises the
embedded firmware, which supports functions for coordinator, router and end device, and
the GUI part – the WSN Monitor which is run on a PC.
Thanks to the WSNDemo application, the MeshBean2 boards are organized into a set of
nodes constituting a wireless network. The LEDs of a board indicate the board current
state and activities. End devices and routers read from the onboard sensors and send the
readings to coordinator in packets. End devices also follow a duty cycle, waking up
occasionally to transmit the sensor data. That data is displayed on WSN Monitor panes as
temperature, light and battery level measurements.
End device is mostly sleeping, and it wakes up shortly each 10 seconds for activities.
During the sleep period, you can force end device to wake up by pressing the SW1 button.
Router sends data each 1 second. Using UART, the coordinator transmits the received
packets, along with its own sensor data, to the GUI application (WSN Monitor).
The WSN Monitor visualizes the network topology in a form of tree. It also displays the
node parameters like node addresses, node sensor information and node link quality data.
Measured in dBm, RSSI indicates link’s current condition. The RSSI resolution is 3 dBm.
LQI is a certain numeric value defined within the 0…255 range to measure the link quality.
Larger values mean better link, while values close to zero indicate poor connection.
In regard to the WSNDemo, Section 4.3 describes how to use the boards. GUI is
described in Section 4.5. Further instructions are given in Section 4.6.
The application is delivered with source code included (see Appendix A). It is implemented
on top of the BitCloud API and it can be modified as described in Section 7.
With WSNDemo, the number of routers and/or end devices used is limited only by the
network parameters described in Section 7.4.
Z I G B I T ™ 9 0 0 D E V E L O P M E N T K I T 1 . 3
U S E R ’ S G U I D E
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