What is Arduino Uno?

What is Arduino Uno?

Arduino/Genuino Uno is a microcontroller board based on the ATmega328P ( datasheet ). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button.

What is the best Arduino board to start with?

The UNO is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the UNO is the most robust board you can start playing with. The UNO is the most used and documented board of the whole Arduino & Genuino family.

Which pins of Arduino Uno have PWM capability?

Pins 0-13 of the Arduino Uno serve as digital input/output pins. Pin 13 of the Arduino Uno is connected to the built-in LED. In the Arduino Uno – pins 3,5,6,9,10,11 have PWM capability.

What are SCL/SDA pins on Arduino Uno?

I2C – SCL/SDA pins are the dedicated pins for I2C communication. On the Arduino Uno they are found on Analog pins A4 and A5. What is I2C? I2C is a communication protocol commonly referred to as the “I2C bus”. The I2C protocol was designed to enable communication between components on a single circuit board.

How do LEDs work on Arduino Uno?

The Arduino Uno board has a build-in LED (light emitting diode) connected to one of the digital input/outputs. If you look at a pinout for the Arduino Uno board you will find that all the header connectors in the sides are connected to the microcontroller.

What is the GND on Arduino Uno?

At the top of the Arduino Uno board, there are headers counting from 0 to 13 followed by one called GND. These are all digital inputs or outputs and the last one is the ground.

How to upload code from Arduino/Genuino Uno?

Go to the menu Tools -> Port and then choose the COM port where (Arduino/Genuino Uno) is included in the name. Now try again to upload the code ( Sketch -> Upload or Ctrl+U) and it should work.