ARDUINO UNO R3

Author: Zen Kuda Nixjoen

Described on the official Arduino website as the “best board to get started with electronics and coding” and the most “robust” board to start with. Because of that we just had to check out the Arduino Uno R3. So, without further ado let’s take a look at what the most used board of the whole Arduino family has to offer.

SPECS AT A GLANCE

Microcontroller: ATmega328P
SRAM: 2 KB
Flash Memory: 32 KB (0.5 KB used by bootloader)
EEPROM: 1 KB
Clock Speed: 16MHz
Operating voltage: 5V
Digital I/O Pins: 14
PWM I/O Pins: 6
Analog Input Pins: 6
Dimensions (Length and Width): 68.6 x 53.5mm
Weight: 25g

ARDUINO UNO R3 VS ARDUINO NANO

The Arduino UNO R3 and the Arduino Nano are very similar in terms of specifications. One of the differences being that the Uno R3 is bigger than the Arduino Nano. They have similar microcontrollers, the same SRAM, and the same clock speed. Another difference is that the Arduino Uno R3 makes use of a normal USB port whereas an Arduino Nano has a micro-USB port. Here is a small table comparing the two.

SPECSARDUINO UNO R3ARDUINO NANO
Microcontroller:ATmega328PATmega328P
SRAM:2 KB2 KB
Clock Speed:16 MHz16MHz
USB Port:NormalMicro-USB

APPLICATIONS OF ARDUINO UNO R3

  • Automation
  • DIY projects
  • Control Systems
  • Embedded Systems
  • Robotics
  • Instrumentation

FEATURES YOU WILL LOVE

ARDUINO COMMUNITY

One of the best features of Arduino, especially for beginners, is the fact that the community is so proactive and welcoming. Hundreds of blogs and discussion forums cover just about every project you could carry out with your Arduino board. Help is always available in the forums, whether it is help with the electronics side of things that you desire or coding tips, the Arduino community is always ready to share knowledge. Another great feature is that the Arduino website has a beginners’ guide to the Arduino Uno available and additionally, you can use the Arduino Web Editor to program the board directly from your web browser.

CONNECTIVITY

The Arduino Uno R3 is very user-friendly and also offers great connectivity unlike the Arduino Nano (this difference can be attributed to size). The Arduino Uno R3 includes an onboard LED indicator and a USB-B controller. You also have the option of adding a number of different shields.

FEATURES YOU MAY NOT LOVE

MEMORY

The lack of onboard memory on the Uno is another potential deal-breaker. Whilst the Uno is very capable of accommodating many lines of code, more complex projects with advanced user interfaces will be restricted by the 32k program memory limit.

SPEED

The Uno is capable of a clock speed of only 16MHz and this along with the memory issue will significantly affect projects that require higher speeds.

WRAPPING UP

Overall, this board is very popular with beginners and it is easy to see why. It is cheap and for its price, it is very capable. There are several projects that you can attempt with the Arduino Uno R3 board and the connectivity is a plus for this. Of course, you may complain about the memory and speed but you have to understand that it is an entry level board and it is very cheap (<$25), so for the price you are getting more than you have bargained for. If you are looking for a board that is similar in price and capabilities, you can check out our review on the Arduino Nano, although cheaper, it is just as capable bar the lack of connectivity and it could be the board you opt for if you are interested in doing more compact projects.

Get started with your Arduino Uno R3 here.

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