This week's book giveaway is in the NodeJS forum. We're giving away four copies of Serverless Applications with Node.js and have Slobodan Stojanovic & Aleksandar Simovic on-line! See this thread for details.
Would you please help me rank the options, according to easiness and price, for doing the following using Java?
I need to receive input from a device. I’m not sure what this device is called yet, but I know it can make a lot of other devices (such as public sinks, paper towel dispensers, and air hand dryers) touchless. It can make them touchless because it knows when something (such as a hand) is waved in front of them. Because I don’t know what this device is called, I’ll refer to it as the first device.
I need the sound of my voice to be played when something is waved in front of the first device. I also need the amount of time after something is waved in front of the first device to be kept track of. Please call this amount of time “x”. And, I need the sound of my voice to be played, with a changed volume, when something is waved again in front of the first device, AND when x is greater than one amount of time, AND when x is lesser than another amount of time.
In addition to a speaker that plays the sound of my voice, I also need another output device, a light (whose brightness I can change). I need these two output devices to be far away from the first device.
Would changing the code of a musical doorbell be a good shortcut?
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