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 are the digital pins on Arduino Uno?

Arduino Uno Pinout – Digital Pins. 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 voltage should be used to power Arduino Uno?

Above 12 volts, the regulators might overheat, and below 7 volts, might not suffice. VIN Pin – This pin is used to power the Arduino Uno board using an external power source. The voltage should be within the range mentioned above. USB cable – when connected to the computer, provides 5 volts at 500mA.

How do I Hard Reset my Arduino Uno?

This will put the Arduino into a mode where the bootloader is waiting for an upload. You will know it is in this mode as you will see the LED do a slow 1 second fade on and off. Hard Reset. Plug the Arduino into the USB port. Then place a jumper between the Ground and the Reset pins.

What is the Uno board?

The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards. You can find here your board warranty informations. Getting Started

How do I use the Uno?

It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.. You can tinker with your UNO without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again.

How do I use the digital pins on the Uno?

Each of the 14 digital pins on the Uno can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. They operate at 5 volts. Each pin can provide or receive 20 mA as recommended operating condition and has an internal pull-up resistor (disconnected by default) of 20-50k ohm.