The principle of this setup is somewhat simple ... sensor drives an infrared emitter to illuminate an object, then looks for the reflectance from the object to detect its close proximity. Now is the ...

Physical computing has been defined in various ways, but the central idea seems to be the same: physical computing is concerned with developing software ... The Arduino sketch is shown in Listing 4.

[Dave Jones] from EEVBlog.com takes “Arduino ... sketch. We find it amazing how simple [Dave] makes the process seem, even choosing to write his own sketch to reproduce and transmit the IR ...

Open one of the example sketches, and press the upload button to load it. The Arduino should begin responding to the program: If you’ve set it to blink an LED light, for example, the light ...

Using the Arduino Sketch [Eric] has written, you can easily plug in your Wi-Fi information and IFTTT key and trigger. All that’s left to do is put this IoT motion sensor to work by mounting it ...