Electrolytic capacitors are common, but knowledge of their limitations is uncommon. A demonstration is shown highlighting the difference in performance between electrolytic and ceramic capacitors in power supplies. Other topics discussed in the video: Ele...
A tutorial on what servos are, how they work, and how to use them. Then I build a laser turret using a pan-tilt servo kit and an Arduino Uno. The Arduino is programmed with XOD, a free visual programming language.
Download XOD: http://xod.io/?utm_source=a...
The ultimate Arduino tutorial for beginners. Learn how to choose an Arduino, dim LEDs, build a motor speed controller and more. Sponsored by Audible - Get a free 30 day trial & download one free title: http://www.audible.com/afrotechmods
Example UNO kit: ...
A tutorial on the basics of resistance, resistors, and Ohm's law which describes the relationship between voltage, current and resistance. I also show you how to build a simple resistor + LED circuit.
300 LEDs for $13: http://www.amazon.com/exec/obidos/AS...
A tutorial on the basics of resistance, resistors, and Ohm's law which describes the relationship between voltage, current and resistance. I also show you how to build a simple resistor + LED circuit....
A tutorial on the basics of using LEDs (light emitting diodes). Polarity, forward voltage and current are discussed.
300 LEDs for $13: http://www.amazon.com/exec/obidos/ASIN/B00UWBJM0Q/afromods-20
500 resistors for $12: http://www.amazon.com/exec/obidos/A...
What is voltage and what does it do? Learn about volts, coulombs, joules, power supplies and more in this video!
Previous video on amps: http://www.youtube.com/watch?v=8gvJzrjwjds
A tutorial on zener diodes and how to use them as voltage clamps, voltage regulators, and how to create audio distortion circuits.
300 assorted zener diodes on Amazon for $10: http://www.amazon.com/exec/obidos/ASIN/B015D0B3B6/afromods-20 Check out my webp...
An explanation of what constant current sources are, and how to use an LM317 to build a constant current source that can power strings of LEDs and laser diodes.
Switch mode current sources: http://amzn.to/1BOQjUe
Check out my...
How to charge a single cell lithium ion or lithium polymer battery with an adjustable, current limiting bench power supply.
Multi chemistry charger on Amazon: http://www.amazon.com/exec/obidos/ASIN/B00466PKE0/afromods-20
Check out my website for more vide...
A guide to battery capacity measurement including amp-hours, watt-hours, C ratings and more.
The Amp Hour podcast: http://www.theamphour.com/...
This is my most requested topic - how to build a switch mode step down (buck) DC-DC converter! This thing can work with an 8V to 30V input, deliver up to 5A, and is around 88% efficient....
An explanation of how class D amplifiers work, and how to build your own 2x15W stereo amplifier. Click "show more" for the schematic and part numbers.
Class D amp kit: http://www.amazon.com/exec/obidos/ASIN/B005FMWY4S/afromods-20
More electronics: http://...