Beginner Electronics - 8 - First Circuit!
Summary
TLDRIn this electronics tutorial, the host, Codmore, guides viewers through creating a basic LED circuit using a 9V battery, an LED, and a resistor. He explains how to calculate the necessary resistor value based on the battery and LED specifications, and suggests using a 1,000 Ohm resistor if unsure. The video demonstrates connecting the LED to the battery with the resistor in series, ensuring the LED lights up. The host also hints at future episodes covering more efficient prototyping methods beyond wire clipping.
Takeaways
- 🔋 Start by gathering the necessary components: a battery, an LED, and a resistor.
- 🔢 Use a 9V battery, but a double A battery is also acceptable as long as you know its voltage.
- 💡 The LED's longer leg should be connected to the battery's positive terminal, and the shorter leg to the negative.
- ⚙️ Calculate the appropriate resistor value based on the battery voltage and LED specifications, or use a 1,000 Ohm resistor as a safe default.
- 🔧 If you don't have a metal clip, you can hold the components together by hand.
- 🔬 The tutorial demonstrates connecting the LED and resistor to a 9V battery to light up the LED.
- 🛠️ Ensure the resistor is connected to the longer lead of the LED, which is connected to the positive voltage.
- 📏 A 270 Ohm resistor is used in the tutorial, which is a close approximation to the calculated 240 Ohm value.
- 💡 The successful lighting of the LED signifies the completion of the first circuit.
- 🔩 The tutorial hints at future episodes discussing more efficient prototyping methods beyond wire clipping.
Q & A
What is the main topic of this electronics tutorial?
-The main topic of this electronics tutorial is creating a basic circuit that lights up an LED using a battery and a resistor.
What type of battery does Codmore recommend for this circuit?
-Codmore recommends using a 9V battery for this circuit, but he also mentions that a double A battery can be used as long as you know its voltage.
How can you determine the appropriate resistor value for the circuit?
-You can determine the appropriate resistor value by calculating it based on the battery voltage and the LED's specifications, as explained in the previous video.
What is a safe default resistor value if you can't calculate the exact one?
-If you can't calculate the exact resistor value, using a 1,000 Ohm resistor is suggested as a safe default.
Why is it important to know the voltage of your LED?
-Knowing the voltage of your LED is important to calculate the correct resistor value to prevent damaging the LED by providing too much current.
What is the significance of the longer leg of the LED?
-The longer leg of the LED is the positive lead and must be connected to the positive terminal of the battery.
Can you attach the resistor to either the positive or negative lead of the LED?
-Yes, you can attach the resistor to either the positive or negative lead of the LED, but it must be connected to the positive voltage source.
What is the purpose of using a metal clip in this tutorial?
-The metal clip is used to make a temporary connection between the resistor and the battery, completing the circuit and lighting up the LED.
What is the next step after creating this basic circuit?
-The next step is to learn about easier ways of prototyping circuits that do not involve clipping wires together, which will be discussed in the next tutorial.
Why is it suggested to use a higher resistor value than calculated if you don't have the exact value?
-Using a higher resistor value than calculated is suggested to ensure the LED is not subjected to too much current, which could damage it, even if it's not the most efficient or bright.
Outlines
🔌 Introduction to Building a Basic Circuit
In this segment, the host, Codmore, welcomes viewers to the eighth episode of an electronics tutorial series. The focus of this episode is on constructing the audience's first-ever circuit. To participate, viewers are instructed to gather essential components: a battery (the host uses a 9V battery but suggests a double A battery as an alternative), an LED, and a resistor with an appropriate resistance value. The host references a previous video that teaches how to calculate the necessary resistor value based on the battery and LED specifications. If viewers are unable to perform this calculation, a 1,000 Ohm resistor is recommended as a safe default. The host also mentions the use of a metal clip for convenience, although it's not mandatory. The assembly begins with connecting the LED's longer leg to the battery's positive terminal and the shorter leg to the negative terminal, with the resistor attached to the LED's longer lead. The clip is used to complete the circuit, resulting in the LED lighting up, thus creating a simple but functional circuit.
Mindmap
Keywords
💡battery
💡LED
💡resistor
💡voltage
💡ohm
💡circuit
💡calculation
💡metal clip
💡prototyping
💡tutorial
Highlights
Introduction to creating the first electronic circuit
Requirement of a battery for the circuit, with a 9V battery used as an example
Flexibility in using different voltage batteries as long as their voltage is known
Need for an LED and a resistor with a specific resistance value
Tutorial on calculating the resistor value based on battery and LED specifications
Using a 1000 Ohm resistor as a safe default if exact calculations are not possible
Using a 270 Ohm resistor as a substitute for the calculated 240 Ohm resistor
The importance of connecting the longer leg of the LED to the positive terminal of the battery
Connecting the resistor to the LED's longer lead for connection to the positive voltage
Using a metal clip for a secure connection between components
Identifying the positive and negative terminals on the battery
Completing the circuit by connecting the LED's shorter lead to the battery's negative terminal
Observing the LED light up as a result of the completed circuit
Recommendation to use a 1000 Ohm resistor for beginners
Introduction to the simplicity of the first circuit consisting of a resistor, LED, and battery
Discussion on the limitations of using clips for larger projects and the need for better prototyping methods
Anticipation of future tutorials on easier prototyping tools and methods
Conclusion and thanks for watching, with a teaser for the next tutorial
Transcripts
what's going on everyone my name is
codmore and welcome back to electronics
episode 8 in this episode we are going
to finally create our very first circuit
now you're going to need a few things to
follow along with this tutorial and do
it yourself first things first you are
going to need a battery I'm going to be
using a 9vt battery but you don't have
to you can use a double A battery just
as long as you know the voltage of it
and usually the battery will tell you
what voltage it is right on the side of
the packaging next you're also going to
need an LED and you're also going to
need a res resistor with a proper
resistance value for your circuit now we
learned in the last video how to
calculate what value of resistor you
would need according to the battery that
you are using and according to your LED
so if you haven't done so already get a
battery and note the voltage of it then
grab your LED and go to the previous
video and do the calculation to see what
value of resistor you're going to need
if for some reason you aren't able to do
the calculation because you don't know
who made your LED or you don't know the
proper voltage of your LED just use a
1,000 Ohm resistor or some resistor
around 1,000 ohms and that should be
plenty to keep your LED safe in my case
the calculation for a 9volt battery in
my specific LED means I have to have a
240 Ohm resistor but I only have a 270
Ohm resistor so that is what I'm going
to be using and that is okay because it
is above 240 ohms and finally you might
also want to have a metal clip if you
have one if you don't that's fine you
can just hold it together with your
hands all right now let's get started
first things first remember that the
longer leg of your LED which is this one
for me has to go to the positive
terminal of your battery and the shorter
leg which is this one for me must go to
the negative terminal of your battery
just remember that now you can attach
your resistor to your LED on either the
positive or the negative lead or rather
the longer or the shorter lead it
doesn't matter which side it goes on I'm
just going to put mine on the longer
lead where it should go to the positive
voltage of my battery so I'm going to
line them up right here on the lead and
because I have a clip I'm just going to
clip them together like so so now the
resistor is connected to the longer lead
of my LED next get out your battery here
and try to note which one is the
positive terminal and which one is the
negative terminal for me as you can see
this little plus sign over there this
terminal is the positive terminal of my
battery and this terminal over here is
the negative terminal of my battery so
that means I attached the resistance
to the longer leg of my LED which means
the resistor must touch the positive
terminal of my battery and then if we
Bend everything around a little bit you
can touch the other lead of the LED
right to the negative terminal and as
you can see the LED will light up that
is it that is your very first circuit
that you just created you lit up an LED
that is awesome remember if you're not
sure what type of resistance you're
going to need just use a th000 ohm
resistor or somewhere around there and
that should be plenty for your LED
but either way we created our very first
circuit and it was really simple right
just a resistor an LED and a battery now
it wasn't as simple as it could be
though I mean if we had to build huge
projects using just little clips and
clipping wires together everything would
be terrible I mean this is just hard to
do so we are going to need to find out a
new way of prototyping stuff that's
easier than clipping wires together and
we'll talk about how to do that and a
couple of more tools in the next Tut
tutorial thanks for watching everyone
and I'll see you guys in the next video
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