Robot Building for Beginners, Third Edition

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CHAPTER 14 Variable Resistors The brightness sensors and balancing dial at the front of Sandwich are variable resistors. In this ...

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CHAPTER 14 ■ VARIABLE RESISTORS You can adjust all potentiometers down to zero ohms (no resistance). The value printed on the po ...

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CHAPTER 14 ■ VARIABLE RESISTORS Turning the Dial Most potentiometers have single-turn dials. That is, they rotate from their min ...

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CHAPTER 14 ■ VARIABLE RESISTORS An easy way to identify a multiturn trimpot is to look for a metal screw offset to the side of t ...

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CHAPTER 14 ■ VARIABLE RESISTORS Turning the potentiometer control dial has no effect on the resistance between the first and thi ...

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CHAPTER 14 ■ VARIABLE RESISTORS When dialed all the way to one extreme, the resistance between the middle pin and either the fir ...

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CHAPTER 14 ■ VARIABLE RESISTORS Unfortunately, the user has the ability to turn the potentiometer all the way down to no resista ...

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CHAPTER 14 ■ VARIABLE RESISTORS Power up! Turn the trimpot dial with a small screwdriver and observe the brightness of the LED. ...

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CHAPTER 14 ■ VARIABLE RESISTORS In this circuit, an LED (D2) has been connected to the third lead of the trimpot (R2). The maxim ...

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