By Charles Bell
Starting Sensor Networks with Arduino and Raspberry Pi teaches you ways to construct sensor networks with Arduino, Raspberry Pi, and XBee radio modules, or even indicates you the way to show your Raspberry Pi right into a MySQL database server to shop your sensor data!
First you'll know about the differing kinds of sensors and sensor networks, together with the way to construct an easy XBee community. Then you'll stroll via construction an Arduino-based temperature sensor and knowledge collector, by way of development a Raspberry Pi-based sensor node.
Next you'll examine other ways to shop sensor information, together with writing to an SD card, sending info to the cloud, and establishing a Raspberry Pi MySQL server to host your info. You even how to hook up with and engage with a MySQL database server at once from an Arduino! ultimately you'll how to positioned all of it jointly by means of connecting your Arduino sensor node for your new Raspberry Pi database server.
If you need to see how good Arduino and Raspberry Pi can get alongside, in particular to create a sensor community, then starting Sensor Networks with Arduino and Raspberry Pi is simply the booklet you would like.
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Extra resources for Beginning Sensor Networks with Arduino and Raspberry Pi
It can be. Fortunately, you do not need to do this manually very often. In fact, the XBee itself will build these packets for you when you use it to send data. The libraries you use to talk to the XBee from the Arduino and Raspberry Pi will also make life much easier for you. So what do you do for this project? Do you create the packets yourself? If you are concerned about counting bytes and figuring out the checksum, fear not. Digi has a web site that will make your experience with this project a happy one.
Now switch to the router, and enter the command with the 77 77 data payload. Figure 2-19 shows the results of this command (and other commands). I will let you observe the data packet sent and the response. Figure 2-19. Packets generated on the router 46 Chapter 2 ■ Tiny Talking Modules: An Introduction to XBee Wireless Modules Return to the end device, and enter the broadcast transmit request packet (the one with 88 88 and address 00 00 00 00 00 00 FF FF). Send it a few times, and then switch to the coordinator and see what is going on there.
You can configure your XBee modules in any way you want, provided you have at least one coordinator in the network. To form a mesh, simply employ several routers, where one or more end devices exchange messages and the routers exchange messages with a coordinator. Figure 2-7 shows a typical mesh network. Figure 2-7. ZigBee mesh network 28 Chapter 2 ■ Tiny Talking Modules: An Introduction to XBee Wireless Modules ■■Tip Configuring XBee modules can sometimes go wrong. When this happens, the issue can be very frustrating to diagnose and correct.