Abstract
Data nodes are a key component in IOT solutions. Your solution could use one or more data aggregators to send data to a database server in the cloud or one or more database servers in the solution itself. If your IOT solution uses custom-designed hardware, you may even incorporate a database server on an embedded computing component. Whichever the choice, you need to know more about using a database server in your solution.
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Notes
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But can accept USB-based memory sticks and hard drives.
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Micro Secure Digital (micro SD): a small removable memory drive. See http://en.wikipedia.org/wiki/Secure_Digital .
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My alma mater has suffered a similar transition. I mourn for the loss of knowledge.
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My first real computer was an IBM PCjr. I followed it by building my own IBM PC AT computer, complete with a 10MB hard drive. Ah, those were the glory days of personal computers!
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Places like your couch, favorite recliner, patio, coffee bar, and so on.
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Be sure to select a cable that supports device sensing. If your Lapdock does not power on when the Raspberry Pi is connected, it is most likely the HDMI cable. Try another cable.
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Be sure to get permission before “borrowing” a cable from a friend or spouse—it won’t be usable as a standard cable when you’re finished modifying it.
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Not to be confused with noob, which is a bit derogatory. See https://en.wiktionary.org/wiki/noob .
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The operating system is free. You’re just paying for the convenience of someone having formatted and installed the image on the card for you.
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They go by so fast; it is unlikely you can read them anyway. Basically, they’re noise unless there is an error, and those usually appear in the last few lines displayed.
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Raspberry Pi images were generated with fbgrab. You can install it with sudo apt-get install fbgrab.
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What does vi mean? If you’ve ever had the pleasure of trying to learn it for the first time, you may think it means “virtually impossible,” because the commands are terse (by design) and difficult to remember. But seriously, vi is short for vim or Vi Improved text editor. The name suggests that the original editor may very well have been completely impossible to use!
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A highly technical term for when computers don’t do what you think they should.
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Python experts often refer to themselves using this term. It is reserved for the most avid and experienced Python programmers.
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© 2016 Charles Bell
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Bell, C. (2016). Building Low-Cost MySQL Data Nodes. In: MySQL for the Internet of Things. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-1293-6_6
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