Electronics
Motor speed controller screw terminal block
In the image below, you'll see where to connect the power source and the motor to the motor speed controller.
- #2485
- 09 Sep 2025
How to Strip the Ends of a Wire
Before you connect wires in your project, you need to take off the plastic covering (insulation) at the ends so the metal wire is exposed. This is called stripping the wire. You can do it with a wire stripper or even with simple tools you may have at home.
- #2486
- 09 Sep 2025
Beginner's Guide to Soldering
Here, we’ve listed all the tools and skills you need to solder and desolder components using THT (Through-Hole Technology).

- #2487
- 10 Sep 2025
How to Drill Small Holes
What You’ll Learn:
Tools & materials needed for drilling.
Step-by-step drilling technique.
How to keep yourself safe in the process.

- #2488
- 10 Sep 2025
Voltage regulator
Why Are Voltage Regulators Important?
They protect components from getting too much or too little voltage.
They keep the power supply stable.
They make electronic devices more reliable and last longer.
- #2489
- 11 Sep 2025
Capacitors
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.
- #2490
- 11 Sep 2025
How a Spinning LED Strip Can Create the Illusion of an Image
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!
- #2491
- 11 Sep 2025
Why rotate around center of mass
If you don’t rotate an object around its center of mass, it becomes unstable - causing vibrations, extra stress, and sometimes complete system failure.

- #2492
- 12 Sep 2025