Video tutorials -

• Electronics

Here’s a list of all the parts you need to build the table tennis scoreboard. Each part links to Amazon. If a link doesn’t work, don’t worry - we’ve also added tips on how to find a replacement.

When you need a loud, straightforward alert for a project, like a timer, a security alarm, or a button-press confirmation, you don't always need complex music or variable tones. Active buzzers are simple "plug-and-play" components. Give them power, and they instantly make noise, saving you code and wiring hassle.

In this quick tutorial, you'll discover:

• What an active electronic buzzer is and how it differs from a passive one.

• How to identify the anode (+) and cathode (-) pins.

• How to wire and trigger an active buzzer using simple DC power or a microcontroller.

This tutorial covers the fundamentals of LEDs: how they function, how to identify their terminals, and how to safely power them without damaging the component.

Understanding LEDs is essential because they are the standard light source in modern electronics. Used in phones, monitors, custom PC builds, and basic microcontrollers like Arduino or ESP32.

Push buttons allow users to interact with electronic circuits. Whether you are building an Arduino project, a game controller, or a custom gadget, you need these buttons to trigger actions, start programs, or change settings.

What you will learn:

1. What a tactile push button is.

2. How the 4 pins connect internally.

3. How to place the button correctly on a breadboard.

A breadboard is your best friend for prototyping. It lets you test circuits safely, make mistakes, pull wires right back out, and try again in seconds, all without needing any special tools.

In this tutorial, you will learn:

• What a breadboard actually is and why it has that weird name.

• How the secret hidden connections work underneath the plastic.

• How the rows and columns are marked so you never plug a wire into the wrong spot.

Here’s a list of all the parts you need to build the Memory Game Challenge. Each part links to Amazon. If a link doesn’t work, don’t worry - we’ve also added tips on how to find a replacement.

Here’s a list of all the tools you’ll need to build the DIY Rotating LED Clock Display. Each tool links to Amazon. If a link isn’t available, we’ve included tips on how to find another one.

Here’s a list of all the parts you need to build the DIY Rotating LED Clock Display. Each part links to Amazon. If a link doesn’t work, don’t worry - we’ve also added tips on how to find a replacement.

Resistors are essential electronic components that limit the flow of electric current in a circuit. Because they’re so small, their resistance value (measured in ohms, Ω) is usually marked with colored bands instead of numbers. Here's how to read them:

What Is a Hall Effect Sensor?

A Hall Effect Sensor is a small electronic component that detects magnets. When a magnet comes close, it sends a signal to other devices, like an Arduino or an LED light. Think of it as a tiny switch that turns on whenever a magnet is nearby.

If you don’t rotate an object around its center of mass, it becomes unstable - causing vibrations, extra stress, and sometimes complete system failure.

You’ve probably seen a spinning fan or display with LED lights that forms text or images in mid-air — it looks like magic! But what’s really happening?

This amazing effect is based on a concept called Persistence of Vision (POV). When an LED strip spins fast enough and its lights turn on and off at just the right times, your brain blends those quick flashes together. The result? You see a complete image - even though it’s really just a single line of lights moving in circles!

What is a Capacitor?

A capacitor is an electronic component that stores electrical energy in an electric field. You can think of it like a tiny rechargeable battery, but it charges and discharges much faster and can’t hold energy for very long.

Why Are Voltage Regulators Important?

1. They protect components from getting too much or too little voltage.

2. They keep the power supply stable.

3. They make electronic devices more reliable and last longer.

What You’ll Learn:

1. Tools & materials needed for drilling.

2. Step-by-step drilling technique.

3. How to keep yourself safe in the process.

Here, we’ve listed all the tools and skills you need to solder and desolder components using THT (Through-Hole Technology).

In the image below, you'll see where to connect the power source and the motor to the motor speed controller.

In the image below, you can see the "battery terminals".

In the image below, you can see the "electrical contacts" of the motor pointer with blue arrows.