Uninstalling Software

               To remove a package, use  Sudo apt-get remove package name command to uninstall the package along with any dependencies which are no longer required to upgrade a package, type  sudo apt-get upgrade command in the terminal.

Playing Music at the console

               Pi supports a music playback package called moc. To install moc package type the following command in the terminal sudo apt-get install moc -installation cmd To load music player, simply type mocp in the terminal

To make mocp become apparent, just by pressing the Q key. To restore the interface again, just type mocp command in the terminal the most commonly used mocp flags are as follows

               mocp -s   stop current playback

               mocp -G    Resume playback

               mocp -x    stop playback and quit mocp

               mocp  -i   print information on the current song to the terminal

GPIO port

               GPIO stands for General Purpose Input/Output. The prime goal of GPIO pins to add some extensions to your Raspberry Pi.

Pins Layout

Raspberry Pi configuration:

• sudo apt-get update

• sudo apt-get upgrade

Install the rpi.gpio packages by typing the following command

sudo apt install python3-rpi.gpio

• Enable I2C and SPI in raspi-config by entering terminal 

sudo raspi-config

Go to interface option and enable I2C & SPI

In the breadboard, make use of LED, 1k resistor and jumper wires to create a circuit. Plug the ground jumper wire into the ground line of the breadboard and plug the other cable into one column of the breadboard. Now write a python program to control the LED function. To do that, we open nano editor to write programs.