The document describes the major components of an Arduino Uno board. It explains that the board contains a microcontroller, analog and digital pins that can be used for inputs or outputs, a USB connector for programming and power, a power port for an external power source, and LEDs and chips to facilitate communication. The microcontroller is an Atmega328P that contains memory and a CPU to run loaded programs. The board converts sensor signals to digital values and allows control of connected components through its pins.

1. SAKIB NESAR RATUL
Section - C
ID- 201-35-3080

2. ARDUINO UNO
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3. WHAT IS ARDUINO
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► Arduino is a microcontroller based open source electronic
Prototyping board which can be programmed with an
Easy-to-use Arduino IDE.
► Arduino consists of both a Physical programmable circuit
Board and a piece of software or IDE. The Arduino IDE uses a
Simplified version of C++ making it easier to learn.

4. THE MAJOR COMPONENTS OF THE ARDUINO UNO BOARD ARE THE FOLLOWING
POWER PORT
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USB Connector MICRO CONTROLLER ANALOG INPUT PINS DIGITAL PINS

5. CRYSTAL OSCILLATOR
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Reset USB INTERFACE CHIP TX RX LEDS
THE MAJOR COMPONENTS OF THE ARDUINO UNO BOARD ARE THE FOLLOWING

6. Pitch Deck 6
USB Connector
► This is a printer USB port used to load a program
From the Arduino IDE onto the Arduino board
► The board can also be powered through this port

7. 7
Power port
► The Arduino board can be powered through a
AC-to-DC adapter or a battery
► The power source can be connected by plugging in a 2.1
mm central-positive plug into the power jack of the board
► The Arduino UNO board operate at a voltage of 5 volts, but
it can withstand a maximum voltage of 20 volts

8. Pitch Deck 8
Micro Controller
► It is the most prominently visible black rectangular chip
With 28 pins. Think of it as the brain of your Arduino
► The microcontroller used on the UNO board is Atmega328P
By Atmel ( a major microcontroller manufacturer)

9. Pitch Deck 9
Micro Controller
► Atmega328P has the following components in it
► CPU: It controls everything that goes on within the device. It fetches
The program instructions from flash memory and runs
It with the help of RAM
► RAM of 2KB. This is runtime memory
► Flash memory of 32KB. The program loaded from the Arduino IDE is
stored memory

10. Pitch Deck 10
Analog Input Pins
► Arduino UNO board has 6 analog pins labeled “Analog 0 to 5.”These
pins can read the signal from an analog sensor such as a temperature
sensor and convert it into a digital value for system understanding

11. 11
► You can find these pins labeled “Digital 0 to 13.”These pins
can be used as either input or output pins. When used as output,
these pins act as a power supply source for the components
connected to it and when used as inputs pins, they read the signal
from the component connected to them
Digital Pins

12. 12
► When this switch is clicked it sends a logical pulse to the
reset pin of the Microcontroller and now runs the program
again from the start.
Reset Pins

13. ► This is a quartz crystal oscillator which ticks 16 million
times a second. On each tick, the microcontroller performs
One operation, for example, addition, subtraction, etc..
crystal oscillator

14. ► Think of this as a signal translator. It converts signals in the
USB level to a level that an Arduino UNO board understands.
usb interface chip

15. ► TX stands for transmit, and RX for receive. These are
indicator LEDs which blink whenever the UNO board is
transmitting or receiving data
TX RX LEDs

16. THANK
YOU
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