# Beginner Electronics - Beginner Electronics – 10 – Bread Boards

## Beginner Electronics

29 Lessons

### Beginner Electronics – 10 – Bread Boards

what's going on everyone my name is Gautam Ord welcome back to electronics episode 10 in this episode we are going to learn all about bread boards bread

boards are really really important to understand so if you have any questions whatsoever throughout this tutorial leave them down below in the comments and at the end of this video we are even

going to rebuild the circuit that we built in episode 8 on the breadboard so stay tuned here I have an image that represents a breadboard now you already saw a breadboard in the previous video

so if you forget what it looked like go back to that video and you can check it out and this is just kind of a quick diagram basically all of these little circles here are little holes that you

can input a wire into you can plug a wire into each one of the little holes on the breadboard now these holes are connected in specific ways that allow you to create circuits first let's take

a look at the power rails basically this area up here and the breadboard in this area down here these are called power rails or buses and they're basically really long strips of metal so what I

mean by that is the power rail up here basically all of these holes that I'm highlighting in green all of those holes throughout the whole entire breadboard are all connected to each other that

means if I plug a wire into this hole and I plug a wire into this hole they're basically on the same wire because there's a metal piece connecting all of these holes together so that would make

a connection these two wires in these two holes would be connected to each other and that goes the same for the row below all of these holes that I'm highlighting are also connected to each

other so if we plugged a hole or a plugged a wire into here and into here they're connected to each other they make a connection but these two rails are separate because if we plug a wire

into this hole right here and we also plug a wire into this hole those two wires are not connected they are not connected because remember only this row up here are connected to each other and

this row down here are connected to each other that's the only things that those holes are connected with and it works the exact same for the power rail or bus down and this end too so basically on

the edges of almost every breadboard not all of them but almost every breadboard you have power rails that basically extend down the whole board connecting all of those holes and that's

generally where you plug in your battery source so generally you would plug in the positive terminal of your battery here and the negative terminal of your battery right here that way you can get

power throughout the whole length of your breadboard all right now let's talk about the part that you're really going going to be using a lot and that is this main part

of the breadboard here these two rows of a bunch of holes most breadboards like this one and the ones that I'm going to be using have five holes in every row like so as you can see basically every

five holes are connected so these five holes right here are all connected these five holes right here they're all connected as well these five holes are all connected these five holes are all

connected and it goes like that all the way down in rows these five holes right these five holes right here etc however these two sections this upper section right here and this lower section are

separate from each other so if I plugged a wire into this hole right here and I plugged a wire into this hole right here they are not connected however if I plugged a wire into this hole right here

and a wire into this hole right here they are connected so basically every five holes in a little row like this they're connected by a little metal strip within the breadboard so any wires

you plug into them will be connected on the other hand if you try connecting wires the opposite way so we plug a wire into this hole and we plug a wire into this hole right here they are not

connected because these middle areas are only connected in rows that go extend up and down like so I really hope that I'm making this clear I know I'm not the best explainer when it comes to physical

objects like a breadboard I hope I'm explaining it good enough basically every five holes are connected by a little metal strip so anything you plug into them will be on the same wire

pretty much and the power rails extend for the length of the breadboard and they have a long metal strip within the breadboard as well again I hope I made that clear if you have any questions

whatsoever please let me know down below in the comments now let's move on to the actual circuit building on a breadboard we actually build a circuit on a breadboard all right so now that we know

exactly how a breadboard is laid out and how they kind of work let's build the same circuit that we did in tutorial eight on the breadboard here I have a 9-volt battery connected to a 9-volt

battery holder which basically just gives me the two leads off of it I have my breadboard here my LED and my resistor as well as a couple of wires just in case I'm going to need them so

as you can see on this specific breadboard we have two power rails on basically either side one is marked red and one of the smart blue and on this particular breadboard and our most

breadboards these power rails run the metal strips all the way down them like we've already explained whereas these little rows going up and down just these tiny little rows of five little holes

are connected to each other and they're separated on both sides so these five are different from these five right here I've already explained how these breadboards are laid out it's just a

little while until you begin to make sense of how all these connections go now because these power rails are meant for power I'm going to plug my battery right on into there the positive

terminal of my 9-volt battery is going to go into the red rail and the negative terminal of my 9-volt battery is going to go into the negative rail or the blue rail hair on my breadboard like so I'm

going to zoom in just a bit so that we can see everything a bit more clearly so now we have essentially the positive terminal of my battery connected to this far rail right here up running up and

down and the negative terminal of my battery connected to this nearer rail right here running up and down the breadboard next I'm going to insert my LED remember the longer lead always gets

connected to positive so I'm going to take my LED here I'm going to stick the longer lead right on into the positive rail as you can see and I'm going to stick the other lead into one of the

holes on one of the regular rows on the breadboard if I rotate this a little bit you'll see that the longer lead is connected to the positive terminal and the other lead is just connected to one

of the rows on the breadboard now of course this LED is going to need a resistor so I'm going to take my resistor as well I'm just going to bend the leads a little bit I'm going to

attach it to in this case my negative terminal of my LED and I'm just going to turn it around and I'm just going to pop it into another set of five holes on my breadboard here

rrrow like so hopefully you are able to see that maybe if I focus a bit more there we go the LED is connected or I'm sorry the resistor is connected to the LED and then it ranges over and it's

really hard to see and I really apologize for that as you can see it runs into this row right here as well now to complete our circuit I'm just going to use one of my fancy little

breadboard wires here pre-cut and pre stripped for me and I'm going to attach to the same row as the resistor here so I'm just going to plug that into the same rail and I should be able to plug

this into the negative terminal row like so and if it'll stay in there we have our LED lighting up so this is the same circuit that we created in episode 8 except look at that it's much more

cleaner we didn't have to use any clips or hold anything with our fingers it's sitting there and it's working now again I really apologize if you can't see the wires too too well so if you have any

questions whatsoever on breadboards please leave them down below in the comments because bread boards are your friend you really need to get used to using them and how they're laid out so

now that we know about bread boards were able to prototype almost anything electronic that we want so let's continue on with this tutorial series thanks for watching everyone else see

you guys in the next tutorial

We learn how to use bread boards, something very very important!

See my website: https://codenmore.github.io/