Arduino Uno R3

One of the best things about the Arduino platform is that it is open-source, which is why it is so popular. The Arduino platform is probably the most documented DIY project in history, you can find a seemingly infinite number of tutorials and articles online at every step of a project. Documenting our work is important so that we can contribute to the growing pool of knowledge. By documentation, I mean more than just writing things down. I would like to talk about some of the different projects and resources that you want to use to document your projects and to share what you have learned with others in a way that does not seem to hinder your work. The code you write for Arduino needs to be well documented.

If you want to create a circuit diagram, you can use software like Freighting, and if you build your own circuit board, of course, there’s a way to go about it. Let’s take some graph paper and draw the circuit yourself with a pen, then scan it on my computer as an image. It’s probably very cute and might sound old-fashioned, but I think it’s very efficient. Looks like no matter how hard you try there’s always a little bit of symbolism that you can’t just get right with the software, but it’s very easy when using pen and paper. I think this is the most enjoyable part of registering a project.

The Arduino Uno R3 is a removable, dual-inline-package (DIP) Atmega328 AVR microcontroller board based on a microcontroller. It has 20 digital input/output pins (of which 6 can be used as PWM output and 6 can be used as an analog input). It can load programs from easy-to-use Arduino computer programs. Arduino has a wide support community, which makes it a very easy way to get started with embedded electronics. R3 is the third and latest version of Arduino.

What is Arduino Uno R3?

The Arduino Uno R3 is a type of Atmega328p based microcontroller board. It includes everything you need to hold a microcontroller; Simply connect it to a PC with a USB cable and supply using an AC-DC adapter or a battery to start. The word Uno means “an ” in the Italian language and it was identified for the release of Arduino’s IDE 1.0 software. Arduino Uno is the third as well as the most recent change of Arduino Uno. The Arduino Board and IDE software is the reference version of Arduino and is currently in progress in new releases. Uno Board The sequence of USB-Arduino boards and the reference model designed for the Arduino platform are preliminary.


It has everything you need to support a microcontroller; Simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get it started The USB UNO board is the first in a series of USB boards and is the reference model of the Arduino platform.

The ideal board through fun and hands-on projects to get you started with Arduino Uno Electronics. This board is your entry into the unique Arduino experience: great for learning the basics of how sensors and actuators work and a must-have tool for your quick prototyping needs. Arduino Uno R3 The most used and documented board of the Arduino family.


  • Dimensions: 80mm x 60mm x 25mm
  • Microcontroller: Atmega328p
  • Operating voltage: 5V
  • Input voltage (recommended): 7-12V
  • Input voltage (range): 6-20V
  • Digital I / O PIN: 14 (6 of which provide PWM output)
  • PWM Digital I / O Pins: 6
  • Analog input pin: 6
  • DC current per I / O pin: 20 mA
  • DC current for 3.3V pins: 50 mA
  • Flash memory: 32 KB (Atmega328p) of which 0.5 KB uses bootloader
  • SRAM: 2kb (ATM 328p)
  • Iprom: 1 KB (Atmega328p)
  • Clock speed: 16 MHz
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Christophe Rude

Christophe Rude

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