Beginning Sensor Networks with Arduino and Raspberry Pi by Charles Bell

By Charles Bell

Starting Sensor Networks with Arduino and Raspberry Pi teaches you the way 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 find out about the differing kinds of sensors and sensor networks, together with the best way to construct an easy XBee community. Then you'll stroll via construction an Arduino-based temperature sensor and knowledge collector, by way of construction a Raspberry Pi-based sensor node.

Next you'll research other ways to shop sensor facts, together with writing to an SD card, sending info to the cloud, and constructing a Raspberry Pi MySQL server to host your facts. You even easy methods to connect with and have interaction with a MySQL database server at once from an Arduino! ultimately you'll the best way to positioned all of it jointly by way of connecting your Arduino sensor node on your new Raspberry Pi database server.

If you must see how good Arduino and Raspberry Pi can get alongside, specially to create a sensor community, then starting Sensor Networks with Arduino and Raspberry Pi is simply the e-book you wish.

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37 Chapter 2 ■ Tiny Talking Modules: An Introduction to XBee Wireless Modules Figure 2-13. Loading firmware for the router Capturing Serial Numbers Recall that XBee radios require the 64-bit address (serial number) of the destination radio to send data. You need to record these before you begin the project. Take a moment to record the 64-bit serial numbers for each of your XBee modules. If you have inserted your XBee modules into their adapters, you can use a terminal application to query the modules for the address using the ATSH and ATSL commands.

You will see this in action when you explore using a DHT-22 temperature sensor in the next chapter. 26 Chapter 2 ■ Tiny Talking Modules: An Introduction to XBee Wireless Modules Addresses The XBee modules are branded with a specific serial number or address located on the bottom of the module. This is a little inconvenient given that you normally cannot see the back of the module when it is mounted. However, you can find the address using either the Digi configuration application or a simple serial terminal application.

36 Chapter 2 ■ Tiny Talking Modules: An Introduction to XBee Wireless Modules Figure 2-12. Loading firmware for the coordinator When the write process is done, disconnect the coordinator and place a small piece of colored tape on the module so you know it is the coordinator. It isn’t critical for now, but later on it would be handy to know which is the coordinator. Now follow the same steps for the router. Figure 2-13 shows the settings for the router. 37 Chapter 2 ■ Tiny Talking Modules: An Introduction to XBee Wireless Modules Figure 2-13.

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