Hi, welcome to a tutorial from Robojax. my name is Ahmad Shamshiri and I am representing
this tutorial from Canada in this tutorial we are going to learn how we
can use a breadboard. either this size breadboard
smaller size like this a breadboard like this or breadboard like this
let's get started with this
breadboard is used to do prototyping before you built the circuit like death
which you will start making PCB and then attaching the components that will turn
up to this one but before that you can test it on a breadboard and program it
of course this is these are different type of chip that you cannot but you
might be able to use these hole through chips that you can do the prototyping
and testing it so we will use breadboard to either learn or do the prototyping
for example this is a seven segment display that I was doing the prototyping
I've connected all the wires here on breadboard for tutorial any of my videos
I've used these breadboard so some of them I have just kept them like that and
here's an example of prototyping for a 7 segment display with all these
wires here is an example of using mini breadboard have a lot of tutorials
related to electricity electronics and robotics including Arduino and sensors
and I've written a lot of codes, make sure to subscribe to my channel
Size of breadboards
we have different sizes of breadboards and the size refers to number of pins
or holes it has that you can invert this is called 830 breadboard which means
they have 830 holes. this is called 400 bread board or 400 point bread board
which have 400 pins and this is hundred and seventy or mini breadboard our number
of holes if you just count them he will see that this has 170 pins.
in order for me to demonstrate I'm going to use this bulb which is 12V
and this is my power supply and when I connect it you will see that it
will turn on there is no sound or anything so I will use this for
demonstration so first first let's see the wire have been connected when I
connect these two the light will turn on so I'm gonna demonstrate it here on this
breadboard we have line here blue and then red or a little pinkish so this is
referring for power supply so you can connect it if you pay attention on this
side because a blue is on that side then this line blue is also on the other side
and the red is on their side for positive what it means is has all these
holes on this side they are all connected together and this line that we
have see red all of these are connected or short-circuited together and this is
the power bar here if you look at it from the bottom I just remove this piece
and you will see that it is one long piece of metal that is connected all
together
here I just removed it and as you can see they are all connected in one piece
the same way and this one it's just the shorter version of this so I'm gonna do
a demonstrate it here. now if I connect this and here and if I connect it to any
point you will see that the light will turn on what it means is that from this
side to the end they are all connected and also the same way for a positive if
I connect it to the positive and the other wire is in the negative you see
these two wires are isolated and if I connected here you will see that this is
all connected the same is true for this side if I connect it you will see that
the bulb is on and if I connect it to the red one the bulb is ON and if I
connect it between the red and blue the bulb is not ON, meaning that this line is
separated or isolated from the other side from the blue side so when you do
prototyping you will connect your power supply negative and positive here and
you have a lot of positive and negative available at any point that you need for
example if you can get five volts the five volts will be available throughout
this board. and then here we have these lines they are all labeled and also
numbered from 1 to 63 here vertically ABCD and E so you can refer to a certain
place for example and here on each line at the bottom you see one piece of metal
connecting them all and if I remove this piece if I push it with this pen
and you can see that we can remove it and this is what it is at the bottom so
when you insert your wire they just hold your wire like that at the bottom look I
can insert it back. we will see that these lines are all connected like that
up to here so these are all connected after the end and this side are
connected this side is isolated from the other side let me show you if I connect
this on this line and if I connect it on the same line you will feel that
ball-ball turn on but if I connect it to the next one it will not turn on you see
and also if I connect it on this side it will not turn on because these are
isolated and as I bring it you will see that this is connected and next line on
this side or on this side they are not connected so these are all connected the
same is true for this one except it's shorter and you can see it is up to 30
points on horizontally and ABCD up to E is here. now let's look at a small one and
the smaller one these lines are all connected like that nothing is connected
like that but this the middle they are isolated so these lines on one side and
these are lying on this side and this allows you to insert an IC like that
you see this IC you can insert it and it has enough space for IC and the
same is true for this. let me connect a wire here so you can see it and now if I
where here you will see the bulb will turn on and if I connect it to the next
line the bulb is not turning on and to the other one as well and if I connect
it on this side the bulb is not turning on because this line is separating them
but if I bring this on this side the bulb will turn ON . with now true
for this one except they're connected multiple of these breadboards. if you
have a larger project and attach these together for example this can be
attached to the next one and you can make and you can make a larger breadboard
as much as you want. so this breadboard is sold like this with three
breadboard attached together on a piece of metal and we have terminals so you
can click your power for example you see I've connected my positive and negative
and positive element connected here so I have hair all positive and negative will
be connected in here with this four millimeter banana connector and these
are exactly the same as the other breadboard at the bottom of the
breadboard we have adhesive and also it has double-sided and it has tape
wood glue in case if you want to attach it to something permanently you can
remove this and attach attach it but decide that also you can remove this
piece here in case if you don't need this you can remove it.
If you connect multiple of these, you don't need the power line you can remove this easily
like that
so here I have removed this piece from this and now still you will have this
connecting point where you can connect it a few and you can remove this one as
well and connect them together the same way here now as you can see between
these two we have only one piece of positive and negative because this had
its own positive negative and this one but they remove one of them and you have
here something like this and if you look from this side you will see that we have
only one of this piece here not two for each breadboard
Connecting resistors
and here if you want to for example connect these three resistors in series
you do it like that just bend the resistor a certain point inserted somewhere
doesn't matter as long as you insert it like that because I mentioned that these
are all connected so these are all isolated from each other so the other
point is here and I'm connecting another resistor at at this point as you can see these
two are on the same line so these are in series
and her have connected now three resistors in series. to connect three
resistors in parallel you will insert one at any point that you want and then
insert the second one on the next hole beside it
and he'll have connected all these three resistors in parallel they're all
together on this side on the same row and here they are connected to the same
row
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Typed and corrected on Mar 08, 2020 by Ahmad Shamshiri.
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