Tutorial 01 for Arduino: Getting Acquainted with Arduino Video Lecture | Arduino Programming: Step by Step (to become an Expert) - Electronics and Communication Engineering (ECE)

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hey everyone Jeremy Blum you know I'm
really excited to bring you this new
tutorial series we're gonna a lot of fun
with it the Arduino is an awesome open
source platform microcontroller that you
use for doing electronics projects
automating things it does it inputs and
outputs interrupts things like that
we're gonna go through all that in this
tutorial series I'm gonna be releasing
one video every week each Monday the
first one might actually be a little bit
early but after that it'll be every
Monday and yeah it should be a lot of
fun if whether you're a beginner who's
never used electronics before or if
you're a veteran who's been working with
microcontrollers remember but I've never
used the Arduino platform this is going
to be a great video series the first few
are gonna start off pretty simple
getting you intro to the basics of the
Arduino how it works getting software
installed making simple circuits that
blink LEDs and stuff like that and then
we'll get a little more complicated
later on and it should be a lot of fun
so let's get started here's a few of the
things that you're gonna need to run
through these tutorials and work with an
Arduino platform of course you first
need the actual Arduino you'll need a
USB cable for that Arduino so you can
program it that also powers the other we
know while it's bugging to the computer
if you want to use the Arduino not
plugging the computer once you finish
programming it you'll need a power
supply of some kind you will also need a
breadboard breadboards are extremely
useful for prototyping out your
electronic circuits will be running
through several different types of
circuits that you can use to light LEDs
run speakers use motors things like that
you're gonna need LEDs and resistors for
a lot of tests will be running you might
want a speaker or two so you can make
sounds with the Arduino a motor DC
motors will be using servo motors will
be using we might get time to use a
stepper motor and then if you have a
sensor says we run down the line and
I'll be telling you what those are as we
get closer to those tutorials but as a
preview we're probably using some flex
sensors some force sensors and some
light sensors you can see a couple of
the Arduino projects that I've done
myself you can click on each one and
then link you to the
the YouTube video that's associated with
it these are just a few examples of the
many many things you can do with Arduino
and hopefully you'll find these
interesting and maybe will give you some
inspiration for projects that you want
to pursue on your own once we've gone
through the processes of using an
Arduino in this tutorial series so what
is Arduino Arduino is this open-source
Hardware prototyping platform that's
based around the atmel atmega series of
microcontrollers and you can program
those on your own using something called
an ISP programmer and you program those
in C code which is something I've done
for several projects in my research lab
at school but and that's really nice you
can do a lot of really cool things with
them but for the average person C code
is annoying and cumbersome and it can
make it difficult to do the really
exciting things that you may want to do
the microcontroller so what Arduino does
is it extracts away that extra
information you gives you the Arduino
programming environment which is a lot
simpler than C and the way it does that
is there's a special piece of firmware
loaded on here the Arduino firmware is
loaded on to this atmega chip that comes
pre-loaded on Arduino boards and then
you program it in the Arduino
programming language which we'll walk
through in this tutorial series so
basically this is the Arduino Uno this
is probably we're gonna use the most in
tutorial series but you're welcome to
use many of the different kinds of
Arduino Arduino is open source hardware
which means you don't actually have to
get an Arduino branded Arduino they
release the schematics openly and you
can build it your own using parts you
have lying around or that you want to
buy and you can install the firmware
onto it with an isp program if you want
to do that yourself there's a lot of
ways to use an Arduino microcontroller
but we're probably to stick to the you
know this is the easiest one to get you
can go grab it at element14.com it has a
USB port for programming a DC power jack
the power regulator for that you can
power this thing via a battery or you
can power it via a DC power source that
plug into the wall
we have reset button ISP programmer the
actual atmega chip itself and then a
bunch of ports for plugging in your
inputs and outputs and that's basically
the are do we not you know in a nutshell
so let's now take a look at how you get
your computer set up to be able to
program your Arduino start by navigating
to our deluna's website in order to
download the open-source Arduino
programming environment its Arduino dot
CC click on the download button scroll
down download the version for whatever
operating system you're running on I'm
on Windows right now and that's just a
zip file you don't actually have to
install anything so just download it to
your desktop or wherever you want to put
it and then download it wait for it to
extract and that's it you're ready to
run the program so what you then do is
just open up the program we now have the
automated programming environment open
for the first time let's always start by
saving our file first so we don't lose
it I want to say on the desktop right
now demo are do we know programs are
always saved in a folder with the same
name as the sketch the sketch is what
Arduino it calls the program it's called
the sketch the next thing you want to do
is make sure your step to program the
right type of Arduino so if you go to
tools and board you want to make sure
you have the right one selected we're
using the Arduino Uno
so you'll select that one if using a
different or lino make sure you select
the appropriate thing from the drop-down
menu we're now ready to program our re
window to get us started let's walk
through making a very simple Arduino
program all this program is gonna do is
gonna blink the onboard led on and off
all Arduinos have an LED connected to
pin 13 so we only have to hook up any
external circuitry we're just going to
make the built-in LED blink on and off
so it was a good idea to start by
commenting your code in are doing then
you just either with a double slash for
a single line comment or a slash star
for multi-line comment and we'll call
this Jeremy's first
program it's awesome so it's a good idea
to defined constants at the top of your
program so let's do that int led n
equals 13 so for those of you haven't
done much programming before all this is
doing is saying that there's an integer
13 an integer is just a whole number and
this constant is or this variable is
defining what pin on the Arduino the LED
is hooked up to it's pin 13 all Arduino
programs have to have two methods in
them the first one is void setup which
looks like that and the content of that
is going to go inside these brackets the
second part of in every Arduino program
it can be empty if you want but it has
to be there is a void loop and what
these two parts of the program are doing
is the first one is setting up things
that will run once at the beginning of
the program when the Arduino is turned
on and the loop part of the program is
setting up things that will run
continuously in a loop forever as long
as the Arduino is on and this is
something that you very commonly want to
achieve with the microcontroller you
want to have it do something forever
until you turn it off in the setup
program making sure we comment
everything we're going to initialize the
digital pins as outputs all the pins on
the Arduino can be used as both inputs
and outputs and we'll talk a little bit
more about how you actually do that but
for right now if we're outputting to an
LED we're turning an LED on or off we
want to make sure that LED pin 13 that
we said before
is that as an output and the Arduino
programming environment you said that
with the command pin mode so pin mode
the are there are two arguments that pin
mode takes the actual pin that you want
to set in this case it's LED pin and
whether you want it to be an input or
output and we want it to be an output
and you always terminate every line with
a semicolon now we're going to write our
loop so the loop is very simple all it's
going to do is
the LED hi or on wait a little bit turn
it off and then wait a little bit and
then it'll repeat and keep looking the
heli D on and off so to set the value
for a digital pin you use the command
called digital right once again it takes
two arguments the first one is which one
you want to write - oh yeah that's gonna
be LED pin and whether you want to set
it high or low high means on low means
off so we're gonna start by sitting at
high now we want to stay high before it
does the next thing so we'll put a delay
in there the delay takes an argument in
milliseconds so a thousand milliseconds
is one second so we'll put in a thousand
that'll keep the LED on for one second
until we do the next command digital
right LED pin low and that will turn it
back off again and then we want to stay
low for a second delay 1000 and then
I'll keep it off for a second and then
at the end here in a loop from the last
thing it did back up to the beginning of
the loop where I'll turn it on again so
this will cause the led to blink on or
off holding for one second each time and
that's our first Arduino program that's
all there is to it now we're gonna take
our USB cable and plug it into the
computer and the Arduino Arduino kind of
lights up there so if you're on Windows
which I am you're gonna have a problem
with the Arduino Uno not installing the
driver properly this is because a change
that they made to the USB interface on
the uno board from the older version of
the Arduino boards if you have an older
version it should just install
automatically if you have the uno though
you'll have to follow these steps so
you're gonna click on the Start menu go
to the control panel navigate to system
and security if you are viewing by
category
and you're gonna click on system now go
to device manager
okay and now you'll see the arduino uno
over here click on that and go to the
update driver software option and we're
going to browse the computer for the
driver software and the driver was
already downloaded when we downloaded
the arduino software for a Windows
computer so we're going to navigate to
that folder which is on our desktop and
in the drivers folder you just click on
the drivers folder right here hit OK
hit next it's gonna say it can't verify
the publisher that's fine still the
software anyway ok we're all done you
can close close those windows that was
that and we're ready to program our
Arduino and to do that all you have to
do is hit this little upload button
right here it'll compile it and send it
over to the Arduino board you have to
make sure you have the right comport
selected
it'll say it's done uploading and now we
can take a look at our Arduino board and
as you can see the LED is flashing once
in every second so congratulations
you've just written your very first
Arduino program okay that's all the
technical stuff happy this week I didn't
want to get too crazy just want to make
sure you guys had system setup make sure
you got and get an Arduino Uno or
another Arduino if you prefer and
breadboard and wires and resistors and
LEDs and stuff so you can start
experimenting with it all right you can
pick up a kit of this stuff where you
can get stuff from element - 14 comm or
a few other places start working on your
Arduino projects if you've used Arduino
before or if you're new to it start
brainstorming ideas we're going to be
sponsoring contests on element 14 you'll
be able to submit your Arduino projects
both as a video response to one of the
videos that I'm left loading as well as
you'll have to post it on the element 14
forums and they'll get voted on by other
users of the community and the person
with the most votes is going to win a
prize I don't know exactly what the
prize is gonna be yet but should be
pretty cool so start working on your
projects put some videos together and it
should be a lot of fun and I can't wait
to see all your guys projects so if you
have any comments on the way I'm
structuring these videos or anything
like that please feel free to let me
know remember you can always leave a
comment on the video or visit my website
Jeremy Blum comm contact me through the
contact form in there or post a comment
on the blog post whatever alright great
that's it I look forward to hearing some
response from you guys seeing the
projects that you guys are working on
and next week we're gonna get into using
some inputs and outputs and doing some
more fun complicated stuff with the
Arduino and it should be an awesome time
alright thanks for listening guys thanks
to element14 for helping me to sponsor
this video series they were kind enough
to provide a lot of the materials that
I'll be using to create these tutorials
feel free to go visit their website at
element14.com check out their community
which is a great place to talk to you
about electronics the Arduino and
basically anything else engineering
related and they also have a store where
you can buy a lot of the parts that
we'll be using in these videos