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Reset Button Digital I/O Pins

Arduino is a small electronic board that can follow instructions to control things like lights, USB Connector Power LED Indicator
motors, sensors and more. It is like a tiny computer that helps you build smart devices. You
write code and the Arduino board reads it and makes things happen—like turning on a light or Voltage Regulator
moving a robot. Microcontroller
The following are the types of Arduino boards: Power Port
Analog Input Pins
Arduino Uno: Arduino Uno is the most popular and beginner-friendly Power Pins
board. It is easy to use and perfect for simple projects like blinking
LEDs, sounding buzzers or building a basic circuit. Most students start Here are some essential hardware components of the Arduino UNO board:
learning Arduino with this board. Reset Button: This button restarts the Arduino by stopping the current program and starting
it from the beginning.

Arduino Nano: Arduino Nano is a smaller version of the Uno. USB Connector: The USB connector is a communication interface that allows data transmission
It works the same way but is tiny, which makes it perfect for small between the Arduino and the host computer and supplies 5V power to the board.
or portable projects. It can also fit on a breadboard, which helps Voltage Regulator: The voltage regulator is an onboard component that ensures stable output
in building neat and compact circuits. voltage for the microcontroller and peripherals.

Power Port: The power port is an external DC input interface that allows the board to receive
Arduino Mega: Arduino Mega is larger and more powerful than Uno. voltage from a separate power source (7-12V).
It has more memory and more pins, which means you can connect Digital I/O Pins: The digital I/O pins are used to read digital inputs or output HIGH/LOW signals.
many sensors, motors or displays at once. It is often used in bigger
projects like robots or home automation systems. Analog Input Pins: The analog input pins are connected to the ADC and convert analog signals
from sensors into digital values (0-1023).

Arduino Leonardo: Arduino Leonardo is special because it can act like a Power Pins: Power pins are fixed voltage terminals used to distribute electrical power to
computer keyboard or mouse. This means you can use it to build devices connected components. These include the 5V and 3.3V regulated output pins, GND for electrical
that control your computer with buttons or sensors, like making your own grounding and VIN for receiving unregulated input voltage.
game controller. Power LED Indicator: The power LED indicator shows the board is powered and operational.

Microcontroller: The microcontroller is the core processing
Arduino LilyPad: Arduino LilyPad is a round and soft board designed unit of the Arduino UNO. It is an integrated circuit that
especially for wearable projects. You can sew it onto clothes and connect it contains a central processor, flash memory, static RAM, The Arduino UNO uses the
with special thread instead of wires. It is perfect for making smart clothing, EEPROM, input/output ports, timers and communication ATmega328P microcontroller.
light-up costumes or wearable gadgets. modules.

In Tinkercad, Arduino is a virtual version of the real Arduino board. It allows you to build and test
your electronic projects on a computer screen, without using real wires or parts. RAPID RECALL Tick ( ) if you know this.

1. A simulation is the process of testing and visualising how a circuit works in a virtual
environment.
COMPONENTS OF ARDUINO UNO
2. A microcontroller is a small, programmable chip that functions as the brain of an
The Arduino Uno is a versatile board that controls devices, reads sensor data, provides power electronic device.
and enables interaction through input and output connections.

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Designing Circuits with Tinkercad