Make: Getting Started with Sensors

Make: Getting Started with Sensors

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To build electronic projects that can sense the physical world, you need to build circuits based around sensors: electronic components that react to physical phenomena by sending an electrical signal. Even with only basic electronic components, you can build useful and educational sensor projects. But if you incorporate Arduino or Raspberry Pi into your project, you can build much more sophisticated projects that can react in interesting ways and even connect to the Internet. This book starts by teaching you the basic electronic circuits to read and react to a sensor. It then goes on to show how to use Arduino to develop sensor systems, and wraps up by teaching you how to build sensor projects with the Linux-powered Raspberry Pi.Circuit diagram for buzzer volume control 4. Next, connect the piezoa#39;s positive lead to one of the potentiometera#39;s outer pins. It doesna#39;t matter ... Clip in the 9 V batteryand turn the potentiometerleft to rightto change the output level of the piezo buzzer. Now you can add ... Wea#39;reusing thepotas a simple adjustable resistor, so we must connect one wire tothe center leadand theother to either ofthe side leads.

Title:Make: Getting Started with Sensors
Author:Kimmo Karvinen, Tero Karvinen
Publisher:Maker Media, Inc. - 2014-08-14


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