Power: Arduino board can be powered either directly from wall power supply or using the USB cable.Two elements used for this purpose is labeled as 2 and 1 respectively.It is with the USB cable the code is loaded onto the board.
There are several ground pins labeled as 3; supply or Vcc has also got options i.e Arduino works in either 5 V or 3.3 V(labeled as 4 and 5); 6pins (A0 to A5) are the analog In pins, which reads data of sensors nad convert them to digital values.Digital pins labeled as 7 ( 0 through 13) can be used as both input and output. Label 8 indicates PWM pins,i.e some pins are marked with symbol (~) act as normal pin as well as Pulse width modulation pin. Label 9 indicate the analog reference pin.…show more content… Power LED: Adjacent to the printed word 'UNO' a LED can be seen ,which blinks whenever the board is powered up.
TX and RX LED : Arduino uses the TX ,stands for transmit and RX stands for recieve pins for serial communication,whenver Arduino recieves or transmit data , LEDs (labele12 ) blinks.
Core IC : Arduino uses Atmega ICs of ATMEL company as microcontrollers for the board.This is known as the brain of Arduino indicated as Label 13
Label 14 is the Voltage regulator ,as name indicates it regulates the voltage into the Arduino board .
3.3.2 Arduino Software
To install Arduino IDE one need an Arduino compatible microcontroller ,a USB cable and computer(Windows,Linux or MAC).Follow the steps for software installation,after this process it would be ready for testing the
