1. Raspberry Pi 2_ Logging on to the 2nd Generation

8/19/2019 1. Raspberry Pi 2_ Logging on to the 2nd Generation

1/20

Raspberry Pi 2 Features:

Raspberry Pi 2 has a 900MHz quad-core ARM Cortex-A7 CPU with 1GB RAM. The

basic module features (listed below) are pretty much similar to that of Raspberry Pi

Model B+.

4 USB ports

40 GPIO pins

Full HDMI port

Ethernet port

Combined 3.5mm audio jack and composite video

Camera interface (CSI)

Display interface (DSI)

Micro SD card slot

VideoCore IV 3D graphics core

As it has an ARMv7 processor, it can run the full range of ARM GNU/Linuxdistributions, including Snappy Ubuntu Core, as well as Microsoft Windows 10. In

case of higher end applications we would need probably more USB ports, so that we

can make use of a USB hub which is compatible with this module. Many monitors do

not have HDMI port as well, so a HDMI to VGA converter is required. Also we advice

to use a Pi cam or an ‘i ball’ webcam to perform the image and video processing

applications.

Click here to buy the HDMI to VGA Adapter Dongle for Raspberry Pi from RhydoLABZ

http://www.rhydolabz.com/index.php?main_page=product_info&products_id=1390.


2/20

Click here to buy the Raspberry Pi Camera Module for Raspberry Pi from RhydoLABZ

Since the module does not have an inbuilt recording device, the microphone inside an

‘I ball’ webcam is preferred so that it could be suitable for both video and audio

processing techniques. Other interfaces like keyboard and mouse could be connected

directly to the available USB ports.

Specifications:

Broadcom BCM 2836 Arm7 Quad Core Processor powered Single Board

Computer running at 900MHz.

It is provided with 1GB RAM for the compact running of bigger and more powerful

applications.

3rd party add-on boards designed for the Model B+ will be fully compatible.

Fully HAT (Hardware Attached on Top) compatible.

40pin extended GPIO to enhance your “real world” projects. GPIO is 100%

compatible with the Model B+ and A+ boards. First 26 pins are identical to the

Model A and Model B boards to provide full backward compatibility across allboards.

Connect a Raspberry Pi camera and touch screen display (each sold separately)

Stream and watch Hi-definition video output at 1080P

Micro SD slot for storing information and loading your operating systems.

Advanced power management:

You can now provide up to 1.2 AMP to the USB port – enabling you to connect

more power hungry USB devices directly to the Raspberry PI. (This feature

http://www.rhydolabz.com/index.php?main_page=product_info&products_id=1399


3/20

requires a 2Amp micro USB Power Supply)

10/100 Ethernet Port to quickly connect the Raspberry Pi to the Internet

Combined 4-pole jack for connecting your stereo audio out and composite video

out.

Compared to the Raspberry Pi Model B+ the Raspberry Pi 2

Model B is:

6 x faster!- That’s faster gaming, faster computing, and faster programming.

It features a new generation ARMv7 quad core processor.

It has more memory- 1 GB RAM vs 512 MB (it has doubled!)- This means that

you can run more applications simultaneously without compromising processing

speed!

Has the same form fit as the Raspberry Pi Model B+ which means all of the

accessories for the B+ are compatible with the Raspberry Pi 2 Model B!


4/20

Basic modules needed:

A micro SD card. We recommend a minimum 8GB class 4 SD card.

USB Keyboard.

USB Mouse.

Monitor.

HDMI Cable and HDMI to VGA converter (if needed).

Ethernet Cable (If needed).

A 5V and 1A (Minimum) USB adaptor.

Powering Raspberry Pi 2:

Since the module consists of a Quad-core ARMv7 processor it performs high current

draw. In its idle state i.e. without any peripherals it draws 200mA of current. So it is

recommended to use a 5V 1A adapter to power the module. It can be also given from

a 5V DC power supply. Extracting the power from a PC or Laptop via USB is not

preferred. If the required power is not obtained then the module will restart

continuously without booting. By setting a suitable power from a dc source and

connect it to the two input wires at the back-end of the micro USB slot, the module

can be powered. But it is to be done with proper soldering techniques and in a proper

way without any short.

http://www.rhydolabz.com/wiki/wp-content/uploads/1117.jpghttp://www.rhydolabz.com/wiki/wp-content/uploads/Pi-2_Connectivity-02.jpg


5/20

Warnings:

It is more preferred to use an external power supply rated at 5V dc, and a

minimum current of 600-1800mA.

This product should be operated in a well ventilated environment and, if used

inside a case, the case should not be covered.

As the module persist in a PCB manner it should be placed on a stable, flat, non-

conductive surface in use and should not be contacted by conductive items.

Collision with high intensity light should be avoided.

The connection of incompatible devices to the GPIO connector may affect

compliance or result in damage to the unit and invalidate the warranty.

The connected peripherals should be provided with proper insulation.


6/20

To avoid malfunction or damage to your Raspberry Pi please observe the

following:

Do not expose it to water, moisture or place on a conductive surface at its on

condition.

As it is designed to work on normal room temperature, do not expose it to any

heat source.

Handle with care to avoid mechanical or electrical damage to the printed circuit

board and connectors.

Avoid handling the printed circuit board while it is powered. Only handle by the

edges to minimize the risk of electrostatic discharge damage.

The Raspberry Pi is not designed to be powered from a USB port on other

connected equipment, if this is attempted it may malfunction.

Lets log on to Raspberry Pi 2

NOOBS Setup:

To get started with Raspberry Pi you need an operating system. NOOBS (New Out Of

the Box Software) is an easy operating system install manager for the Raspberry Pi. If

you have an SD card (8GB recommended), then you can download NOOBS for free

and install it on your card.

Download

1. Using a computer with an SD card reader, visit the Downloads page.

2. Click on the Download ZIP button under ‘NOOBS (offline and network install)’,

and select a folder to save it to.

3. Extract the files from the zip.

http://www.rhydolabz.com/wiki/wp-content/uploads/621.jpghttp://www.raspberrypi.org/downloads/


7/20

Format your SD card

We recommend a minimum 8GB class 4 SD card. It is best to format your SD card

before copying the NOOBS files onto it. To do this:

1. Visit the SD Association’s website and download SD Formatter 4.0 for either

Windows or Mac.

2. Follow the instructions to install the software.

3. Insert your SD card into the computer or laptop’s SD card reader and make a

note of the drive letter allocated to it, e.g. F:/

4. In SD Formatter, select the drive letter for your SD card and format it.

Drag and drop NOOBS files

1. Once your SD card has been formatted, drag all the files in the extracted

NOOBS folder and drop them onto the SD card drive.2. The necessary files will then be transferred to your SD card.

3. When this process has finished, safely remove the SD card and insert it into your

Raspberry Pi.

First Boot

http://www.rhydolabz.com/wiki/wp-content/uploads/96.jpghttps://www.sdcard.org/downloads/formatter_4/http://www.sdcard.org/


8/20

1. Plug in your keyboard, mouse and monitor cables.

2. Now plug in the USB power cable to your Pi so a red led will glow which indicates

the power.

3. Your Raspberry Pi will boot, and a window will appear with a list of different

operating systems that you can install.

4. Raspbian is an Debian based operating system created for Raspberry Pi

hardware. Raspbian is a user friendly OS, it comes with over 35,000 packages,

pre-compiled and arranged in a suitable manner for easy installation on your

Raspberry Pi. So we recommend that you use Raspbian – tick the box next toRaspbian and click on install.

http://www.rhydolabz.com/wiki/wp-content/uploads/IMG_8650.jpghttp://www.rhydolabz.com/wiki/wp-content/uploads/IMG_8648.jpg


9/20

5. Raspbian will then run through its installation process. Note this can take a

while.

http://www.rhydolabz.com/wiki/wp-content/uploads/Installation-Progress_pi-21.gif


10/20

6. When the install process has completed, the Raspberry Pi configuration menu

(raspi-config) will load. Here you can set the time and date for your region and

enable the Raspberry Pi camera board or even create users. To exit the menu

use the ‘Tab’ button on your keyboard and move to Finish .

http://www.rhydolabz.com/wiki/wp-content/uploads/719.jpg


11/20

Logging in and accessing the graphical user interface

The default login for Raspbian is done by entering pi as username and raspberry

as password . Note you will not see any cursor text when you type the password. This

is a security feature in Linux. After that to load the graphical user interface

type startx .

A new desktop will be opened with the following parameters as shown in the figure.

http://www.rhydolabz.com/wiki/wp-content/uploads/13.png


12/20

LXTerminal

LXTerminal is a software tool that creates a man-machine communication scheme

which is done by entering appropriate commands. So it could also be considered as a

command line interface system which is parallel to a command prompt in windows.

For the software installation or for running suitable programs a user can make use of

this LXTerminal by giving suitable commands ie, these commands will tell the

raspberry pi what to do. The efficiency of this system is more than the traditional

methods, but the user should know the suitable commands for the corresponding

operations. The LXTerminal application is there in the desktop with a suitable icon as

shown below.

By clicking in it the terminal will be opened.

http://www.rhydolabz.com/wiki/wp-content/uploads/2015-05-14-092721_1318x736_scrot.pnghttp://www.rhydolabz.com/wiki/wp-content/uploads/LX.png


13/20

SUDO- Super User Login

Basically all the installations are done by entering the suitable commands in the LX

terminal. Many of these operations needs the privilege as a super user as we are

logging as normal user. SUDO is a command that should be entered in the LX

Terminal which gives the full security privilege for the user. SUDO is the abbreviation

of substitute user do ie it gives the access to the root system. SUDO is to be used

only for secured operations, as it does nothing to protect against mistakes. For

entering in to the root mode a user should enter the command given below.

sudo -i

http://www.rhydolabz.com/wiki/wp-content/uploads/root.png


14/20

APT – Advanced Packaging Tool

For install or uninstall additional software’s in a raspberry pi a user should need a

Package Manager. Raspberry Pi comes with a package manager called apt which

stands for Advanced Packaging Tool designed for Debian Linux.

Installing an Additional Software using SUDO & APT

Installing an additional software in raspberry pi could be explained with an example.

We are now installing a game named FreeCraft in Raspberry Pi. A proper internet

connection should be established for this process.

First open the LX Terminal and enter the command shown below.

sudo apt-get install freecraft

http://www.rhydolabz.com/wiki/wp-content/uploads/freecraft.png


15/20

After entering this command we can see some installation messages and finally

it shows that a suitable amount of disk space will be occupied by the software.

Then a question is asked whether to continue the installation. Enter ‘y’ to

continue the installation and ‘n’ to discard it.

http://www.rhydolabz.com/wiki/wp-content/uploads/Indications.png


16/20

By pressing ‘y’ the installation will be carried out and complete with in few

minutes.

After the installation we can c heck it by clicking start menu, Games.

http://www.rhydolabz.com/wiki/wp-content/uploads/2015-05-15-074355_1318x736_scrot.pnghttp://www.rhydolabz.com/wiki/wp-content/uploads/2015-05-15-074319_1318x736_scrot.png


17/20

For uninstalling the software enter the command shown below and repeat the

same steps.

sudo apt-get remove freecraft

Shop With Us

Click here to buy Raspberry Pi 2 from RhydoLabz.

Resources

An open source website by Raspberry Pi foundation.

Get interfaced with Raspbian Operating system.

FAQ

What is the SoC used in Raspberry Pi 2 ?

Raspberry Pi 2 has a new new quad-core Broadcom BCM2836 SoC (System on Chip)

which is clocked at 900MHz and is equipped with four Cortex-A7 cores, and a RAM

of 1GB.

Will Raspberry Pi 2 support other operating systems ?

https://www.raspbian.org/http://www.raspberrypi.org/http://www.rhydolabz.com/index.php?main_page=product_info&products_id=1823


18/20

Tweet 0

Yes, the supporting OS are available on the downloads page. But it is recommended

to use Raspbian OS which is specially designed for Raspberry Pi. Use of Windows 8

ARM edition and Android are not recommended since the Raspberry Pi is

accomplished with a memory which is not enough to substantiate with these OS.

Will it be possible to power a raspberry pi using a DC power supply ?

Yes, a power supply with constant 5v and a 1A current should be produced in a stable

manner.

Now Iam using an 8gb card. I want to expand it to 16 gb. Is it possible to copy

the contents from my 8gb card to 16gb card using a card reader?

Yes, it is possible. Bu if you connect the sd card on widows system for copying, no

files will be displayed as the card depends on raspbian OS. So you have clone the sd

card with windows. For more details see http://computers.tutsplus.com/articles/how-to-clone-your-raspberry-pi-sd-cards-with-windows–mac-59294, that explains how

cloning is to be done.

Did you like this article? Share it with your friends!

2 Responses to "Raspberry Pi 2: Logging

on to the 2nd generation"

Servo Motor Control Using Raspberry Pi says:

July 4, 2015 at 6:12 am

[...] you will find the sample code and the hardware interfacing for

Model B RaspBerry Pi

http://-/?-https://www.rhydolabz.com/wiki/?tag=raspberry-pihttps://www.rhydolabz.com/wiki/?tag=model-bhttps://www.rhydolabz.com/wiki/?p=8271http://computers.tutsplus.com/articles/how-to-clone-your-raspberry-pi-sd-cards-with-windows--mac-59294https://www.raspberrypi.org/downloads/https://twitter.com/intent/tweet?original_referer=https%3A%2F%2Fwww.rhydolabz.com%2Fwiki%2F%3Fp%3D5782&ref_src=twsrc%5Etfw&text=Raspberry%20Pi%202%3A%20Logging%20on%20to%20the%202nd%20generation&tw_p=tweetbutton&url=https%3A%2F%2Fwww.rhydolabz.com%2Fwiki%2F%3Fp%3D5782


19/20

controlling a servo motor using Raspberry Pi 2. Raspberry Pi is a hot topic

and also you might have seen many wiki posts on Raspberry Pi 2!!..But [...]

Reply

Servo Motor Control Using Raspberry Pi says:

July 4, 2015 at 6:12 am

[...] you will find the sample code and the hardware interfacing for

controlling a servo motor using Raspberry Pi 2. Raspberry Pi is a hot topic

and also you might have seen many wiki posts on Raspberry Pi 2!!..But [...]

Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes:

Documents

1. Raspberry Pi 2_ Logging on to the 2nd Generation