Random Fun | Afrotechmods - Fun with electronics!

Category: Random Fun

Hard Drive Speakers

You can turn old hard drives into speakers! I show you how.

Exploding electronic components in HD!

This is what happens when you connect things backwards with 30 Volts.

So I recently got hold of some 2600F (no that is not a typo) ultracapacitors with an insanely low ESR of 0.7 milliohms, meaning they can discharge hundreds of amps even at low voltages. This video shows you some of the mayhem I got up to, and teaches some important capacitor formulas along the way. […]

The world’s simplest hand cranked LED flashlight

This is a quick and easy hack – if you have an old inket or laser printer, it will have a stepper motor in it. By connecting an LED to the stepper motor, you can make a ghetto hand cranked flashlight.

How to build a simple laser tachometer

Did you know you can use an LED as a light sensor? In this video I show you how to use this phenomenon to build a laser tachometer capable of measuring the RPM of mechanical devices.

Raspberry Pi “overclocking” failure

12V lead acid batteries are useful for powering many things. But not Raspberry Pis.

Blue 0603 LED under microscope

Random video. The colour changes a bit as the current gets turned up.

Burning stuff with a camera flash

My Canon 580EX 2 on full power is VERY bright. Bright enough to burn a hole through a garbage bag!!

Transformers LED artwork

Here’s a piece of Transformers related artwork that I made a few years ago. If you ever watched the 80s cartoon show, you may like it. The hardware is pretty simple – it’s an array of LEDs in series, being PWM dimmed with a couple of transistors. An external 20V supply powers the whole thing. […]