There are few important concepts to understand about wireless networks before getting your XBee modules set up. There are three main types of network devices used for forming a ZigBee wireless network:
- End device
There are several types of networks you can create using the ZigBee protocol. We will be building the simplest type, a pair network. This type of network requires only two devices, called nodes.
Every ZigBee network needs one (and only one) device defined as a coordinator. A coordinator device can be considered the “brains” of a ZigBee network. It’s responsible for things like forming the actual network, security, management, and device address assignment, among other things.
A device that is defined as a router acts as a messenger between devices to pass information. It is similar to a network router you would find in a home office. A network can have multiple routers, thus increasing the physical reach of the network.
An end device is a simpler version of a router, in that it essentially sends and receives data. Due to simplicity, it needs a router or a coordinator synced as its parent device.
Let’s say you have several end devices that have a long physical distance between each other. You can use a router to relay the data across the rest of the network. You can even have a network without a router, and use a coordinator to communicate to nodes that are within range.
|< Wireless communication using XBee||XBee configuration >|
Part 1: XBee configuration
- Wireless communication using XBee
- ZigBee networks
- XBee configuration
- Configure Coordinator module
- Configure End Device module
- Viewing your network
Part 2: Rig construction
- Building a custom fish
- Constructing the rig
- Circuit platform
- Battery bracket
- Motors and propellers
- Range finder
- Putting it all together