A type of resistor whose resistance changes at the turn of a knob.
Description:
This device is a variable resistor controlled by a knob.
How It Works:
A potentiometer works by changing the position of a movable contact on a resistive material in relation to a stationary contact, resulting in a changing resistance as the contact is moved.
Connect It:
This device has three wire leads attached to it. Connect the outer pins each to power and Ground, and the Signal pin is connected to a device directly, or any digital or analog terminal on an Arduino.
How It Is Used:
Click the device during simulation to highlight it, then click and drag the wiper to change the simulated resistance.
Get Started:
Drag the starter circuit below into your design for a working example of how to use this part.
More About Potentiometer:
To add a Potentiometer in Tinkercad, search for "Potentiometer" in the component library, drag it onto your breadboard, and connect its terminals with wires to other components in your circuit. You can then click on the Potentiometer to set its name for easy identification & resistance value.
Potentiometers are variable resistors used to adjust voltage levels in a circuit, often found in applications like volume controls or brightness adjustments. The three main types of potentiometers are linear, logarithmic (audio), and trimming potentiometers. Linear potentiometers provide a uniform change in resistance over the entire range, while logarithmic potentiometers have a resistance change that follows a logarithmic scale, commonly used in audio applications for volume control. Trimming potentiometers are small adjustments designed for precision calibration. Key specifications for potentiometers include the resistance value, typically ranging from 1Ω to several megaohms (MΩ), with common values being 1kΩ, 10kΩ, and 100kΩ. The working voltage generally ranges from 25V to 500V, depending on the model. The power rating is typically between 0.1W and 2W, and the tolerance (accuracy of resistance value) is commonly ±10% or better. Potentiometers also have a mechanical life rated in cycles, usually between 10,000 to 50,000 turns, and an operating temperature range between -40°C to +85°C. Units for these specifications include ohms (Ω) for resistance, volts (V) for voltage, watts (W) for power, and degrees Celsius (°C) for temperature.
1. Electronics Tutorials
Website Title: Electronics Tutorials
Website Page URL: https://www.electronics-tutorials.ws/io/potentiometer.html
URL recommended for: A thorough introduction to potentiometers, including their types, working principles, and how they are used in electronic circuits. Perfect for beginners.
2. Digi-Key Electronics - Potentiometers
Website Title: Digi-Key Electronics
Website Page URL: https://www.digikey.com/en/products/filter/potentiometers/748
URL recommended for: A vast selection of potentiometers with detailed specifications, datasheets, and available options for purchase. Great for those who want to explore real-world components and their ratings.
3. All About Circuits
Website Title: All About Circuits
Website Page URL: https://www.allaboutcircuits.com/textbook/direct-current/chpt-5/potentiometers/
URL recommended for: Detailed tutorials and explanations on potentiometers, including their design, application, and function in electronic circuits. Excellent for both theory and practical uses.
4. RS Components - Potentiometers
Website Title: RS Components
Website Page URL: https://uk.rs-online.com/web/c/potentiometers/
URL recommended for: A wide range of potentiometers with their datasheets, specifications, and usage recommendations. Ideal for learning about the different types and purchasing components for specific needs.
5. SparkFun Electronics - Potentiometer Guide
Website Title: SparkFun Electronics
Website Page URL: https://learn.sparkfun.com/tutorials/potentiometer
URL recommended for: A beginner-friendly guide to potentiometers with hands-on examples and project ideas. Perfect for those looking to integrate potentiometers into their DIY electronics projects.
6. Adafruit - Potentiometer Guide
Website Title: Adafruit
Website Page URL: https://learn.adafruit.com/adafruit-pots-and-potentiometers
URL recommended for: A clear and simple guide to understanding potentiometers, with practical examples and step-by-step instructions for using them in projects. Ideal for newcomers.
7. NTE Electronics - Potentiometers
Website Title: NTE Electronics
Website Page URL: https://www.nteinc.com/category/potentiometers
URL recommended for: A selection of potentiometers with product specifications and datasheets. Great for learning about available options and their technical details.
8. Learn Spark - Potentiometer Basics
Website Title: Learn Spark
Website Page URL: https://learn.sparkfun.com/tutorials/using-potentiometers
URL recommended for: A hands-on tutorial for using potentiometers in various electronic projects, with clear explanations on their functionality and integration.
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TinkerCAD Circuits Platform related Interesting Links:
TinkerCAD Circuits Reference Handbook eBook: About Page
Quickly Master Electronics with the TinkerCAD Circuits Reference Handbook
…till next post, bye-bye & take care.
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