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Analoge Sensoren

Diese Sensoren sind für das experimentieren im Workshop vorhanden. Teilweise erfordern sie eine Spannungsteiler Schaltung und teilweise können sie direkt an einen analogen Pin des Arduinos angeschlossen werden.

Drehen/Schieben

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Potentiometer

DatenblattThese sensors are available for experimenting in the Lab. Some can be connected directly to an analog pin of the Arduino, but many require a voltage divider circuit. 

The analog inputs (pins A0 to A5) of the Arduino Uno use the inbuilt ADC (Analog to Digital Converter) in the microcontroller to give us 10-bit values (between 0 and 1023). The Arduino has 0v and 5v as its reference values, so for example, 0v would give us 0, 5v would give us 1023, and 2.5v would give us about 511. To get these values we use the analogRead(). 

Many analog sensors are Resistive, which means they change their resistance in response to a specific stimulus. We can see that on the multimeter for a quick test, but the ADC on the Arduino on measures voltage, not resistance. We can easily solve this problem with a voltage divider circuit

https://itp.nyu.edu/archive/physcomp-spring2014/sensors/Reports/Reports.html

Sliding/Rotating

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Potentiometer

Data SheetPC16-SH

Tutorial: AnalogReadSerial
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Linear Potentiometer

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Movement

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Flex Sensor

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Data SheetFlex Sensor 4.5
Tutorial: Sensing a Bend

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IR

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Distance Sensor

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Touch

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Drucksensor

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Pressure sensor

Data SheetFSR Integration Guide
Tutorial: Force Sensitive Sensors

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Flexiforce

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Pressure sensor

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Data SheetFlexiForce 100lbs
Tutorial: Sensing Weight


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HotPot

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Foil potentiometer

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Data SheetLinear 100mm
Tutorial: Touch Sliders

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HotPot Rotary Potentiometer

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Data SheetRotary Potentiometer
Tutorial: Touch Sliders

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Piezo Element

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Data Sheet7BB-20-6LO
Tutorial: Knock Sensor

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Environment

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Temperature Sensor

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Data SheetLM335Z
Tutorial: Using a Temperature Sensor

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Photo Resistor

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Data SheetPDV-P9203
Tutorial: Simple Light Reading