Achetez Portatifs sur rswww. XBEE SERIES 2. Series 2 Series 2 are good for: •Advanced networking • Longer distance networking •Energy saving "end" devices and meshes that need to self "heal" •Also it supports endpoint function: An endpoint is a distinct task or application that runs on a ZigBee device, similar to a TCP port.
Downsides are: Slower transmision rates and you have to configure the firmware, as of right now (2008) the firmware is not tested thoroughly and buggy. NETWORK OVERVIEW: With the Series 2 the network consists of one coordinator per PAN ID, routers (that join to the coordinator and each other) and end devices who can't pass messages but can go into energy saving modes. Network gotchas: If coordinator is powered off then back on with a different address on the same channel, the routers stay together on the old address till they get a network reset or power up then down. SO: If the coordinator might get powered on then off you should hard code the channel so it re-associates in the right network. "ATNR"(resets network) JN-UG-3059-ZigBee-PRO-Smart-Energy.
Tutorials. Playground - Xbee01. Figure 1: XBee shield This is a new shield developed by M.
Yarza as part of the development process done by the company Libelium from Zaragoza, Spain in close collaboration with Arduino.cc. Figure 2: Shield over Arduino NG The shield allows to easily mount one XBee board and all the components to get it up and running. When plugged on an Arduino NG board without the processor it will act as a USB to XBee converter becoming an interface for all your XBee enabled devices to a computer. Figure 3: it is possible to attach any type of XBee modules Board's version 0001 is beta and under test by the team these days, but it should be launched soon as a DIY kit with all the components included. Kits Radio, 802.15.4 et ZigBee. Xbee Adapter. There are about half a dozen different XBee modems.
Its a good idea to at least review the differences between them so that you can make sure that you have the right power, range and network compatibility for your project For the examples on the site, I use the XBee 802.15.4 modules. These are low cost ($20), reasonably low power and are the most popular XBees used by hobbyists for simple wireless communication. There are half a dozen 'families' of XBee & its important to know the differences The XBee 900 and XBee DigiMesh 900 operate at 900 MHz and so they cannot communicate with the 2.4 GHz frequency XBees! The DigiMesh & ZNet 2.5 modules are preconfigured for mesh networking, not point-to-point or point-to-multipoint connectivity The XBee 802.15.4 operate at 2.4 GHz but are not compatible with the ZNet/ZB/"series 2" modules! If you just want to wirelessly send data from one place to another chances are you'll be most happy with the low cost XBee 802.15.4 Chip Wire UFL RP-SMA.
Programmation r seau de capteur Zigbee - Divers / D butant(e), C.