How to wire up and use LEDs (explained for beginners)

Ah! For a moment I was that young boy, playing with batteries and lamps ...yes I had no LEDs , they existed only in the lab. I would learn ohms law early on, in school I would find the proper shop class, I knew it by the satellite which hung over the teachers desk, built by high school seniors it boasted all they had learned. I smile thinking of what might be built into it today.... then it has been 60 plus years. From ohms law to circuit analysis, old man Bennett taught us well. Yes we could repair that radio or TV, we constructed telsa coils, and experimented with high frequency and voltage. Well I reminisce far afield , but thanks for the memories. Years latter I would share Bennett's teachings, giving several a step up, on their way to becoming engineers , closing the circle. Take care.

I am trying to learn this. I want to add LEDs to my action figures & models. But for some reason, this gives me a ridiculous amount of anxiety. I don't know why but it does.

Hello, thank you for the explanation on how to calculate the resistor needed when you want to connect an LED, I don't know much about electronics, I only do small DIY jobs on low voltage and I admit that I always have trouble knowing what resistor I should put for each LED, I'm keeping this video in my dedicated playlist because I know that by tomorrow I'll have forgotten how it's calculated and being able to find it again will allow me to come back to it in the future and find this calculation again, which will prevent me from burning out LEDs because I didn't put a resistor in. 👍😉

im just 9 years old btw but im motivated for these

WOW!! I GET IT!! Great demo and presentation!! I have been searching and Googling all week on 'How to light a simple basic LED' as a beginner. I have seen numerous 'attempts' on YouTube as far as explaining the fundamentals. Most presenters would flaunt their technical 'expertise' with no idea of who their audience is on the other side of the screen. Kudos and continued success. Mike Y. Chicagoland

Wow, you gives very simple calculation to wire up led in quad, wing , before this we burn many led due to wrong register value calculation. Thanks....

Forget about the resistor - it’s a red herring. The concept you need to focus on is Kirchhoff’s current law and Kirchhoff’s voltage law. In simpler terms: When two components are in series, the currents through them are the same, while the voltages across them add up. When two components are in parallel, the voltages across them are the same, while the currents through them add up. And the reason behind the above general laws is to do with the physics of electricity, i.e. that current is flow of charge per unit time, while voltage is potential energy per unit charge. Ohms law will keep you on track.

AWESOME video, Thanks for sharing! I've been struggling with this when I do lighting projects. I've suffered LOTS of blown LED's from not knowing how to properly calculate the right resistors!

Great video! I was looking for some help on how to hook up the leds for my fpv drone! Your videos are a huge help for me, I honestly don't know where I would be without your videos, everytime I have a question, or am unsure about something on my quad, your videos always come to the rescue! I built my first racing quad (infact my first quad ever that I built) and it flies a dream! I couldn't have done it without your videos to help me, I probably would have fried my fc by now without them😂. Happy flying!

Excellent video, thank you, its clear and well explained, electronics perplex me at times but this has helped me a great deal for my project!

that's filled a gap in my knowledge cheers Lee stay safe.

Extraordinarily clear. I am now a genius. Much thanks, and happy flying.

Excellent information and very well explained. I will try to use this video to teach my boys some common knowledge of life and electronics. 👍👍😎✌👊

Awesome! Great explanation/demonstration! Thank you so much!

Very good video and I like that you go into explaining why instead of just telling us how if that makes sense lol

So you could put 5 in series at 9v with no resistor? Then power supply amperage divided by .1 = the number of parallel circuits you could add?? Great vid!

Fantastic video Lee! I really enjoyed it. It is a good refresher to learn this stuff again. Electronics is so fun to mess with. Thanks for showing us this.

Excellent tutorial, enjoyed it.

Do you think you could make a video on what value of a resistor do I need to mod a standard size RC servo to move more than its standard deflection? Application: To see if we could use a cheap and cheerful standard size servo or a 9gm servo for FPV to get more panning. Absolutely loved this video, great going. Thanks.

Nice video as always. I actually needed a more complex wiring diagram for example how can we connect multiple leds, let say 18 leds in a strip with a 12v battery. I don't really understand if we put more than 1 resistor how actually it works and how to calculate voltage drop etc. I was told to divide 18 leds into 3 parts of 6 leds each. The leds require 2.2 volt to light up brighter. So if I need to light them together I will need 6.6volts right?! So 12.4-6.6=5.8v/0.02= 290 ohm. So should I put a 290ohm to the beginning of the strip? Can I put 3 resistors on each part or the first solution is better?