A switch that closes a circuit while pressed. It's used to create a temporary connection when activated.
Description:
This device is a momentary switch.
How It Works:
A pushbutton contains metal contacts that are squished together when the button is pressed, allowing electrical current to flow. This pushbutton has four wire leads, two sets of which are internally connected always, and the two sets touch when the button is pressed.
Connect It:
Wire one side of the switch to power, and the other side to a microcontroller input pin, as well as to ground through a large resistor. The resistor holds the pin LOW unless the button is pressed, at which point the pin can detect a HIGH signal as it connects to 5V.
How It Is Used:
Click the device during simulation to simulate pressing the switch. Press Shift and click the device to simulate holding the switch down.
Get Started:
Drag the starter circuit below into your design for a working example of how to use this part.
More About Pushbutton:
To add a Pushbutton in Tinkercad, search for "Pushbutton" 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 Pushbutton to set its name for easy identification.
Pushbutton switches are widely used in electronic devices for user input, typically providing a momentary contact to activate or deactivate a circuit. There are several types of pushbutton switches, including momentary (normally open or normally closed) and latching pushbuttons, with the former returning to its default state after being released and the latter staying in its activated state until manually pressed again. Key specifications for pushbutton switches include their voltage rating, which commonly ranges from 12V to 250V depending on the application, and current rating, typically ranging from 0.1A to 10A. The contact resistance is generally low, often below 100mΩ, ensuring minimal voltage drop across the switch. Mechanical life ratings can vary from 100,000 to several million cycles, depending on the quality of the switch. Operating temperature ranges are often between -25°C and +85°C, while insulation resistance may reach up to 100MΩ at 500V DC to ensure proper insulation between contacts. The units for these parameters are volts (V) for voltage, amperes (A) for current, ohms (Ω) for resistance, and degrees Celsius (°C) for temperature. Pushbutton switches are also available with varying actuator types such as flat, dome, or tactile for different tactile feedback experiences.
1. Electronics Tutorials
Website Title: Electronics Tutorials
Website Page URL: https://www.electronics-tutorials.ws
URL recommended for: In-depth understanding of pushbutton switches, including their types, working principles, and usage in electronic circuits. Ideal for beginners to grasp the fundamentals.
2. Digi-Key Electronics - Switches
Website Title: Digi-Key Electronics
Website Page URL: https://www.digikey.com/en/products/category/switches/36
URL recommended for: A large selection of pushbutton switches with datasheets, technical specifications, and options for purchasing. Great for both learning and component selection.
3. All About Circuits
Website Title: All About Circuits
Website Page URL: https://www.allaboutcircuits.com/textbook/switches/
URL recommended for: Provides clear tutorials and explanations on pushbutton switches, their types, operation, and various applications in circuits. A good resource for learning theory and practical applications.
4. RS Components - Pushbutton Switches
Website Title: RS Components
Website Page URL: https://uk.rs-online.com/web/c/switches/pushbutton-switches/
URL recommended for: A comprehensive collection of pushbutton switches with detailed technical data. Great for understanding the variety of options available and their use cases.
5. SparkFun Electronics - Pushbutton Switches
Website Title: SparkFun Electronics
Website Page URL: https://www.sparkfun.com/categories/160
URL recommended for: Tutorials on pushbutton switches, including simple examples and projects for hands-on learners. Good for exploring practical uses and understanding how to integrate pushbuttons into circuits.
6. Adafruit - Pushbutton Guide
Website Title: Adafruit
Website Page URL: https://learn.adafruit.com/adafruit-all-about-switches
URL recommended for: An excellent beginner-friendly guide on switches, including pushbuttons, with step-by-step instructions and project ideas. Useful for learning both the theory and practical implementation of pushbuttons.
7. NTE Electronics - Pushbutton Switches
Website Title: NTE Electronics
Website Page URL: https://www.nteinc.com/category/switches
URL recommended for: A selection of pushbutton switches with datasheets and technical specifications, making it easy to explore different options and their technical aspects.
8. Learn Spark - Pushbutton Switches
Website Title: Learn Spark
Website Page URL: https://learn.sparkfun.com/tutorials/pushbuttons
URL recommended for: A hands-on, project-based approach to learning about pushbuttons. Includes various tutorials and examples of how to use pushbutton switches in electronic projects.
Note: Autodesk® and TinkerCAD® are trademarks of their respective company
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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