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Experimenting with Raspberry Pi by Warren W. Gay

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CHAPTER 8

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Remote-Control Panel

Because of the Raspberry Pi’s small size and low cost, it is an attractive platform for remote-sensing applications. A remote station might need to sense control panel switches or push button events. This electronic problem sounds simple until you discover that switches and buttons suffer from contact bounce.

The remaining challenge resides on the software side. When your sensing stations are remote, some kind of local software console needs to exist. In fact, your console may monitor several remote Raspberry Pis. Then add redundant consoles, or consoles in multiple locations. Each of these has the ability to monitor ...

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