Math scares a lot of would-be electronics lovers away from the field, and if you really hate math this is probably the video in this series where you stop. It will teach you how to use Ohm's Law to calculate resistance and how that applies to a basic circuit.
The first video introduces the basic electrical quantities of charge, current, voltage, and resistance. The concept of quantities and units is explained. The units of Coulombs, Volts, Amperes, and Ohms are described. The three basic formulas of Ohm's Law (E=IR, I=E/R and R=E/I) are also introduced.
This video teaches the basics of Ohm's law, which is an important equation in electrical engineering. The three variables which are used in this equation are V, which stands for voltage, I for current, and R for resistance. The equation for the law itself is I=V/R. This law defines the relationship between these three very important electrical properties. The host of the video further explains what voltage, current, and resistance are and how they work in relation to an electrical current. Gi...
Calculating resistance and power isn't hard... and, as David explains, knowing Ohm's Law and the Power Triangle can be darn useful when you're designing a project, sorting out power supply issues, or want to keep from burning your car down.
A basic instruction for electronic enthusiasts. I use an RGB LED and a 510 ohm resistor as I may change from 6 to 9 volts later, but with my LEDs i could go as low as 330 ohms. I sacrifice some brightness for the sake of longer life. To choose your resistor, the value in ohms = voltage of your batteries or power supply / (as in divided by) the amperage that your LED needs to run.
If you're an electrical engineer, you needn't worry about this educational video, but if you aren't...
This video introduces the formulae for watts in an electric circuit, P=IxE, P=I^R, and P=E^/R. It also explains how P=I^R and P=E^/R are algebraically derived from P=IxE and Ohm's Law.
This demonstrates how to wire a 555 timer chip for Pulse Width Modulation. Items used: solderless breadboard, 555 chip, 510 ohm resistor, 100k ohm variable resistor, 1 RGB LED at 20-25ma, wires, and 9v battery. And those vertical lines are what i mean in terms of what you can see only on the camera. You can see the led light of course without the camera.
If you relate in any way to having the need to carry your iPhone and your vaporizer in one hand, then keep on reading.
People who have never done yoga before think of it as a kind of phony exercise for crunchy granola hippie types where all you do is sit on your butt in the lotus pose and say "Ohm."
If you're doing any sort of electrical work at home, a multimeter is an invaluable tool to have. But as invaluable as it is to have a volt/ohm meter, it is obviously even more invaluable still to know how to use one. And, with this electrician's how-to, you'll learn how to do just that. For more information, and to get started using and reading multimeters yourself, watch this free video guide.
Ever thought your flashlights weren't giving out enough light? Well, change that; watch this video tutorial to see how to make the world's brightest LED flashlight. You will need a vohm meter (volt-ohm meter), wire, thermal paste, a Dorcy flashlight, a soldering iron, and a 900 lumen LED, the world's brightest LED.
Convert a Zoom h2 into a 4 track field recorder which cane record from 4 channels on a computer audio interface. You will need four 10 Kohm resistors, four 100 ohm resistors, two double pole switches, four RCA chassis parts, some wire, small screwdrivers, a wire cutter, a soldering iron, gaffa tape, and a drilling machine with a 6mm metal drill. Watch this video circuitry tutorial and learn how to modify a Zoom H2 into a 4 track field recorder.
Change a normal 9v battery into a life saver. If you have ever run out of juice on your phone and could really use a quick charge, then you need a USB battery. Take a look at this instructional video and learn how to create a pocket USB battery. Materials you will need for this process are one 5.1v zener diode, one 330-ohm resistor, a 9v battery connector, a 9v battery, a solder, and soldering iron.
There was lots of new tech to check out at CES 2016, but you could argue that the majority of the big-ticket items weren't the most unique things in the world. Thankfully, there were a few innovative, unconventional ideas on display, and here are some of our favorites.
Build your very own Trek-style Blu-Ray laser phaser with this hacker's how-to video from Kip Kay of Make Magazine. To replicate this hack at home, you'll need the following materials: (1) a PS3 Blu-Ray laser assembly (which can be had on eBay for roughly $45), (2) an original series-style Star Trek phaser gun (a good quality replica of which can be found for roughly $30), (3) a 9-volt battery, (4) a 9-volt battery snap, (5) a 150 Ohm resistor, and (5) a new switch to replace the phaser trigge...
Basic instructions on how to troubleshoot the heater blower motor of a Saturn S-series. The heater blower motor is located behind the glove compartment of your vehicle. Disconnect the negative and positive power supply. (The black wire is usually the negative.) Using a multimeter set on the Ohm scale, use the positive lead and test the black wire. To check the purple wire for current, use your ignition key and turn it to the run setting, turn the heater power to full power and set the multime...
In this five-part video tutorial series, you'll learn the fundamentals of working with electronics. To follow along, you'll need a 28-280 Electronics kit from RadioShack.
My least favorite aspect of the winter season is how my fingers always turn into stiff, numb digits, unfeeling and seemingly incapable of making even the slightest movement. Yes, that might sound overdramatic, but if you hate wearing gloves like I do, you probably know exactly what I mean.
You must have seen some expensive mp3 players and CD players which have LEDs fixed on them and they dance to the tune looking really pretty.
Despite common misconception, yoga is extremely intensive and a challenge for core stability and muscle stability, especially when you encounter poses like handstands. Not easily done by even the most experienced yoga experts, handstands are a true test of your yoga prowess and ability to say "ohm" with two feet up in the air, arms aching and trembling.
In this video you will be shown how to make a light out of a condom. What you will need is a condom, a 600 Ohm resistor, a Led, a scissor, a glue gun and a bottle. Start by drilling a hole in the top of your bottle then cut the top off with the scissor. attach the resister to the positive side of your light. Put the condom over the plastic bottle top. Glue the condom in place. Then quickly blow the condom up and add the Led light to the hole you first drilled. Hook the condom lamp up to your ...
This video tutorial is in the Education category which will show you how to make sodium bromate and potassium meta-periodate. This experiment uses toxic chemicals and releases harmful gases. First you have to make a saturated sodium bromide. To this solution then add a small amount of potassium dichromate. The solution now becomes concentrated. Then make the circuit as shown in the video. You need a 3 - 5 ohm resistor in order to reduce the current. Then let the cell run for around 6 hours. S...
Most people believe the most exciting play n baseball is the home run, but some would say the most exciting play is at the plate. The catcher is the one with the most exciting responsibility. They control the home plate, and they're responsible for blocking ohm elate and making tag plays to keep the opponent's score down. Learn how to teach your young baseball players how to block the plate as a catcher. It's a tough job, but somebody's gotta do it.
Change a normal 9v battery into a life saver. If you have ever run out of juice on your phone and could really use a quick charge then you need a USB battery.
Watch this educational how to video to review Ohm's Law. This math and physics concept is derived from electric motive forces, intensity of current flow and resistance values of conductor. Watch and learn more about Ohm's Law.
Two years ago, driven by a good friend of mine i decided to give it a try on timelapse photography. I had a DSLR camera but didn't had an intervalometer, so i assembled a small electronic circuit on top of an Arduino Uno, made some basic code and did my first timelapse movie. The result was awful, but for some reason I was hooked.
Wouldn't it be awesome if your glasses could detect when it's bright outside and automatically darken? Well, the technology has been around for a while, but it'll set you back a few hundred bucks.
If there's one augmented reality app idea that should have gone up in smoke, it's probably Tokédex, an app that brings cannabis to the world of AR.
How to use an ohm meter to tell if your high frequency driver is defective.
Learn how to solder wires with this video. Clean the area to be soldered, scraping the wire down to bare metal and then wiping it clean with alcohol or acetone. Use rosin-core solder for electronic applications. This solder normally comes in coils. Tin (coat with solder) the soldering tip first: Wrap one or two inches of solder around the tip while the iron is cold; set the iron to the solder's temperature range; and allow the solder to melt. Clean the tip with a sponge. Set the soldering too...
In the past few weeks, you've already learned how to make your bike light up at night with some DIY rim lights and handlebar lights. But how about something a little more functional? Instead of using those tedious hand signals (which drivers don't even understand), spruce up your ride with some do-it-yourself LED turn signals.
Gary explains the voltages present on the pitch bend pot and how to determine it is working correctly. Use of a volt ohm meter is explained in the process.
Arduino is a language that's easy to learn and supported on many incredibly low-cost devices, two of which are the $2 Digispark and a $3 ESP8266-based board. We can program these devices in Arduino to hijack the Wi-Fi data connection of any unlocked macOS computer in seconds, and we can even have it send data from the target device to our low-cost evil access point.
I love making beeps and bloops with the Arduino pitches library, but sometimes archaic 8-bit tunes just don't cut it. Whether you want your robot to terrify your enemies with a demonic synthetic voice, you just need a pocket boom box on the go, or you want to a miniature guitar amp, a simple LM386 amplifier can crank up those signals loud enough to play through any speaker.
Pot, weed, bud, herb – whatever you want to call it, the green earthy treat makes everything way more fun. Now that marijuana is legal to some extent in more than half of all US states, we thought it was high time to showcase some apps that enhance your experience with the controversial pastime known as rolling up.
Video: . Recycle your hard drive into a hidden flash memory device that only you know how to turn on and use in secret. This DIY hack project allows you to recycle your broken hard drives back to life and turn them into something useful.
Does your car idle high and make an obnoxious racket every time you are stopped at a light, drawing dispproving looks from your fellow motorists? If you are into home car maintenance, you may be able to diagnose the cause of this problem yourself. This video illustrates how to test for one common problem that leads to a high idle, a faulty throttle position sensor, the contacts on which have been worn down by the throttle. You will need an analog multimeter to test the ohm load from the senso...
While music may not technically be a "universe language," it is the one language listened to by all. There are over 1,500 music genres today—rap, classical, rock, jazz, trap, hip-hop, house, new wave, vaperwave, charred death, nintendocore... and the list goes on. And if you're like most people, you now probably listen to the majority of your music on your phone.
Whether you're in an airport, restaurant or waiting room, the insidious grip of televisions on human life is omnipresent. Sometimes it's nice to talk to other human beings while looking at them directly—actually hearing what they have to say.
