hi welcome to an Arduino step-by-step course by Robojax this is for absolute beginners
you just need to have a development board and also some components that is needed for that lecture
and you need to have a pc or mac to start learning Arduino
let's have a look at some of the available Arduino development boards it's your choice whichever you
choose depending on the specification size and other characteristics but the most common one is
Arduino uno that this is the board that I’m going to use either this one or we have Arduino uno
this type with different connector but these are exactly the same in terms of functionality
we have Arduino mega 2560 Arduino duo these are larger size Arduino Leonardo
and this is Arduino nano and then we have Arduino micro this is Arduino micro as the name suggests
this is very tiny very small size but it has usb connectors so you can program it and
upload your code to this one and here are the pins on this side
this is the Arduino nano as the name suggests this is smaller than the micro as you can see
this is micro and that is nano and this one also
and the smaller we have also usb connector this is the mini usb connector
and the pin headers are on this side
this is Arduino Leonardo with micro usb connector and the power adapter so you can connect it the
pins are labeled very nicely on this header on this side and on here and on this side this
is Arduino duo with tons of other pins and micro usb connector and also a power adapter
this is the Arduino mega 2560
with a usb connector and power adapter all the pins have been labeled very nicely
and it has dual row of pins in this side and on the other side
this is Arduino uno revision 3 this is the authentic original from the Italian manufacturer
if you see a board something like this this it doesn't mean this is fake nothing is about fake or
original because this is the main manufacturer of this board the chip is important because only one
company is producing it and they're a different type of chip with the same functionality and
because the software is opin source the design is opin source they've provided all the code anybody
can produce them maybe this will be between four to fifteen dollars and this is around 25
or more it's your choice whichever you pick but they do the same job for example this one has
micro usb and power adapter this one has the large size of usb that is used for printer and scanner
and as if we compare it this one has a lot of labels here but it doesn't mean that you cannot
use it because on this side they all have labels anyways but when I touch this this is very solid
very high quality and this is not that hard it's not well built but for learning purpose and for
many applications that you do this will do the job as well this one you when you buy it you will
get this kind of packaging with authentic label and also some printed sheets information here
but this one if you buy it from eBay and they will come something like this usually they don't
ship it with a cable because you can use a regular micro usb cable that is used for phone and tablet
you can charge it and this one the same cable that you use for printer scanner and many other
devices it will work fine for this as well and this also sold without a cable but from Arduino
official website when you buy it this will also come at the moment with this nice protective
case at the bottom so you can tighten it if you wish to protect the bottom of it Arduino uno has
digital pins from pin 2 to 13 or digital pin that can be programmed as input or output in both cases
they can work but on this side also some of the pins can act as a pulse with modulation
PWM and they have this tilde sign for example pin 3 5 6 9 10 and 11 can be used as pulse modulation
not the other pins these two pins are here for the serial connection
TX or x this side we have two other pins SDA and scl these are used for a communication
purpose and on this side we have some pins here from here to here a0 to a5 the sex pins
are analog n these are just input and this section is for the power and here we have
3.3 volts this is the output 5 volts and then these are two pins for ground or negative wire
and then VIN here this is the power adapter input when you connect it you can connect
7 to 12 volts here and this goes through this voltage regulator which adjusts it to 5 volts
and the same input if you need it it will be also available here at VIN that is the VIN
and this pin is for reset you can use also this this switch when you press the switch
the program that you have will start running and this portion is for usb communication and this is
also other methods of communication which we will talk later for now this would be enough now let's
have a look at the official Arduino website and this is a microcontroller that is used atmega328p
operating voltage is 5 volts and this is input input voltage of the board digital in out
pulses modulation fixed prints and here the current limit if you use a
dc current per and out will be 20 milliampere and if you use a 3.3 volts pin you can
draw up to 50 milliampere flash memory is 32 kilobyte and that reflects 3 2 that is 32 kilobyte
80 omega 32 and it has a f ram of 2 kilo byte EEPROM 1 kilobyte the clock speed is 16 megahertz
and led built-in is pin 13 which I’m going to show you the rest we have a lot of documentation eagle
file that is designed the pcb and schematic and schematic is here and there are tons of
information about this device that's available because it's opin source anybody can produce this
board and use Arduino software for more videos please click on subscribe button or click on
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