arduino uno datasheet


Take a quick look at the Arduino Uno board that came with the Arduino starter kit that I purchased. This is the box then initially is in and there’s the Arduino. Now, at the heart of this board, is the Atmel microcontroller chip it’s, the largest chip on the board for the oh? No, it is the atmega 328p, and that has 32 kilobytes of memory. I believe it operates it as a clock of 16 megahertz. So this is a microcontroller development platform and you use this board, along with the Arduino IDE, integrated development environment, software, to write programs that are sort of intuitive. You don’t have to know complicated, C or assembling language, and you write programs and you use the microcontroller as the brains of the operation and teach it or tell it to read signals from the outside world and respond to those signals to paint on. You know your imagination, how you want this microcontroller to react to the outside world, whatever you’re measuring and whatever you’re controlling, so you’ve got the microcontroller chip, and then you have the basic support circuitry for that chip. That allows you to access the information and respond to that information to the outside world. You have a 3.3 volts regulator and a 5 volt regulator and a USB input there’s a reset switch that allows you to reset the microcontroller to start your program all over again. This essentially is an autonomous board. Initially, you know after you program at that for rims and flash memory.

So when you turn the power off, that program remains in the chip. So initially you can have it so it gets its power from the USB cable and once it’s programmed you can have maybe a 9 volt battery or a separate power source to power this board and have it so it’s no longer connected to a computer after it’s. Programmed and it just runs on its own and does whatever your you’ve programmed it to do so again, you have the larger chip width, which is the microcontroller, and you have a set of digital pins that provide 5 volts, 0 or 5 volts. You have analog input that accepts 0 to 5 volt inputs and that’s, where you would have sensors connected reading something in the outside world and giving information to the microcontroller that will utilize in your program and there’s also access to 3.3 volts and 5 volts. There are other, besides, you know, custom eight circuits that you build. There are ready made boards that do various things that are called shields that you can plug right into these female hitters. So you pretty much stack other boards on top of this board, to increase the functionality and the complexity of whatever circuits you’re designing there’s, also something they call a nice ESP connector it’s an in circuit serial programmer. Normally you have an external piece of hardware that you use to program a microcontroller to download your software onto the microcontroller that’s, usually written in C or assembly language, but with anything about the Arduino Uno is that there is a pre loaded piece of software on there Called a bootloader program that allows you to use a more simpler or intuitive programming language to program and store those programs on the Arduino chip, the other support, shipped on here courses.

You have USB access and there’s a smaller microcontroller on there, at least on the uno. I think the Leonardo has that function built on to a different version of an Atmel chip, so you don’t need a separate circuit circuit to provide USB support, but this uno has a chip and IC microcontroller surface mount there. That provides an interface from usb to the serial input pins on the microcontroller, so that’s, the Arduino Uno, and the next thing I’ll be doing is installing it on a small cardboard wooden platform that the breadboard also plugs on to to make it easier to wire your Experiments to this micro micro controller.


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  1. Great stuff, I’ve just been out to buy an arduino so that my 12year old boy and I can start to learn about electronics and micro controller together. I look forward to viewing your videos. Thank you for taking the time to produce these videos.

  2. Hello! I’m having issue with my arduino uno. It was working OK couple days ago. But now it has problem with uploading. When I try to upload, first it stuck at uploading, after a while it gives quite a long error message starts with
    Problem uploading board,
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x2c
    avrdude: stk500_recv(): programmer is not responding…………….etc. I tried almost all the tricks and instructions online such as reset button. None of them didn’t work. I’m sure that my ports and other options for Arduino UNO are correct. When I connect my arduino to computer I hear the device insertion sound, also yellow(L) and green(ON) lights of the arduino board are on. I reinstalled software. And when I connect arduino it has installed the port automatically which means board and computers’ connection is OK. Also when I connect my arduino board to motor driver, my stepper motor is working with the code which I uploaded previously. How can I fix it? Please tell me if there is other way. Thank you!

  3. thank so much for showing about Arduino and applications. Being slow to explain is always better, because millions people on Youtube not the same.Serving for millions people or hundreds people, which one is better. thanks again.

  4. Hey! This was great! Can you also make a similar Arduino Nano and Node MCU tutorials (and potentially compare the three) please?


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