Monday, September 3, 2018

What is Raspberry Pi?




The Raspberry Pi is a series of small single-board computers developed in the United Kingdom by the Raspberry Pi Foundation to promote the teaching of basic computer science in schools and in developing countries. The original model became far more popular than anticipated,selling outside its target market for uses such as robotics. 
The organisation behind the Raspberry Pi consists of two arms. The first two models were developed by the Raspberry Pi Foundation. After the Pi Model B was released, the Foundation set up Raspberry Pi Trading, with Eben Upton as CEO, to develop the third model, the B+. Raspberry Pi Trading is responsible for developing the technology while the Foundation is an educational charity to promote the teaching of basic computer science in schools and in developing countries.
According to the Raspberry Pi Foundation, more than 5 million Raspberry Pis were sold by February 2015, making it the best-selling British computer. By November 2016 they had sold 11 million units, and 12.5m by March 2017, making it the third best-selling "general purpose computer".In July 2017, sales reached nearly 15 million. In March 2018, sales reached 19 million.

Most Pis are made in a Sony factory in Pencoed, Wales; some are made in China or Japan.


                         To Set Up & Start your Raspberry Pi

The Raspberry Pi board comes equipped with an SD card. This slot permits us to insert an SD card and that can use it as our devices. The SD card is a main storage device for raspberry pi board like a hard disk of a personal computer. The bootable Linux operating system is loaded onto the card, you are planning to use. The raspberry pi supports Linux, Qtonpi, ARM, Mac operating systems. You can select one OS; you will need to write it to an SD card using a Disk manager application. You can also use other storage mechanism, like USB external hard drive or USB drive. There are a numerous brands of SD cards are available in the market in  different sizes. The raspberry pi supports max 64 GB SD card.
Before you start your raspberry pi, you are going to need to connect a display, keyboard, mouse like as a PC. It supports three different O/Ps like  HDMI video, composite video, and DSI video, where the DSI video needs some specific hardware. When you buy a raspberry pi board it may sold with or without an SD card. It is a very important specification  in raspberry pi board. Because, it keeps its operating system, documents and programs. If your raspberry pi did not come with an SD card, then the min size you should get is 4GB.
Advantages of the raspberry pi is, it is small in size, and it works as a normal computer at low cost server to handle web traffic.

                    Applications of Raspberry Pi

The raspberry pi boards are used in many applications like Media streamer, Arcade machine, Tablet computer, Home automation, Internet radio, Controlling robots, Cosmic Computer, Hunting for meteorites, Coffee and also in raspberry pi based projects.

                       Raspberry Pi models comparison




Raspberry Pi 3 B+
Raspberry Pi Zero WH
Raspberry Pi Zero W
Raspberry Pi 3
Raspberry Pi Zero
Raspberry Pi 2
Raspberry Pi A+
Raspberry Pi B
Source of the list: http://socialcompare.com

Image

Release date		2018 Mar 142018 Jan 122017 Feb 282016 Feb 292015 Nov 302015 Feb 12014 Nov 102012 Feb 15

Description		Same as Raspberry Pi Zero W with header already solderedmodel B mostly w/some model A detail
Product details

Price		US$35.00US$15.00US$10.00US$35.00US$5.00US$35.00US$20.00
SOC

SOC Type		Broadcom BCM2837B0Broadcom BCM2835Broadcom BCM2835Broadcom BCM2837Broadcom BCM2835Broadcom BCM2836Broadcom BCM2835Broadcom BCM2835

Core Type		Cortex-A53 64-bitARM1176JZF-SARM1176JZF-SCortex-A53 64-bitARM1176JZF-SCortex-A7ARM1176JZF-SARM1176JZF-S

No. Of Cores		41141411

GPU		VideoCore IVVideoCore IVVideoCore IVVideoCore IV 1080p@30VideoCore IVVideoCore IVVideoCore IVVideoCore IV 1080p@30

CPU Clock		1.4 GHz1 GHz1 GHz1.2 GHz1 GHz900 MHz700 MHz700 MHz

RAM		1 GB512 MB512 MB1 GB DDR2512 MB1 GB256 MB512 MB
Wired Connectivity

USB Ports		Yes 4xUSB 2.0Yes micro & micro OTGYes micro & micro OTGYes 4Yes micro + micro OTGYes 4Yes 1- 2

Ethernet		Yes Gigabit - Over USB 2.0NoNoYesNoYes 10/100MNoYes

SATA Ports		NoNoNoNoNoNoNoNo

HDMI port		Yes 1Yes miniYes miniYesYes miniYesYesYes 1.3

Analog Video Out		Yes shared with audio jackYes via unpopulated pinYes via unpopulated pinYes shared with audio jackYes via unpopulated pinYes shared with audio jackYes shared with audio jackYes Composite

Analog Audio Out		Yes 3.5mm jack- HDMI audio- HDMI audioYes- HDMI audioYesYesYes

Analog Audio In		NoNoNoNoNoNoNoNo USB mic or sound-card could be added

SPI		YesYesYesYesYesYesYesYes

I2C		YesYesYesYesYesYesYesYes

GPIO		Yes 40-pinYesYesYes 40-pinYesYesYes- 26-pins

LCD Panel		YesNoNoYesNoYesYesYes DSI

Camera		YesYesYesYesYes latest version include a camera connectorYesYesYes DSI

SD/MMC		Yes micro-SDYes microSDYes microSDYes microSDYes microSDYes microSDYes microSD- SD

Serial		Yes RX/TX UART------- Through Expansion Connector, needs level shifting
Wireless Connectivity (On-Board)

Wi-Fi		Yes 2.4GHz and 5GHz 802.11 b/g/n/acYes 802.11nYes 802.11nYes 802.11nNoNoNoNo

Bluetooth®		Yes 4.2, BLEYes 4.1Yes 4.1Yes 4.1 LENoNoNoNo
Dimensions

Height		3.37 in (85.6 mm)1.18 in (30 mm)1.18 in (30 mm)3.37 in (85.6 mm)1.18 in (30 mm)3.37 in (85.6 mm)2.55 in (65 mm)2.12 in (53.98 mm)

Width		2.22 in (56.5 mm)2.55 in (65 mm)2.55 in (65 mm)2.22 in (56.5 mm)2.55 in (65 mm)2.22 in (56.5 mm)2.22 in (56.5 mm)3.37 in (85.6 mm)

Depth		0.66929 in (17 mm)0.51181 in (13 mm)0.19685 in (5 mm)0.66929 in (17 mm)0.19685 in (5 mm)0.66929 in (17 mm)0.39370 in (10 mm)0.66929 in (17 mm)

Weight		1.58 oz (45 g)0.42328 oz (12 g)0.31746 oz (9 g)1.58 oz (45 g)0.31746 oz (9 g)1.58 oz (45 g)0.81130 oz (23 g)1.58 oz (45 g)

Website		raspberrypi.org/...raspberrypi.org/...raspberrypi.org/...raspberrypi.org/...raspberrypi.org/...raspberrypi.orgraspberrypi.org/...raspberrypi.org
Power

Power ratings		1.13 A @5V180 mA180 mA1.34 A @5V160 mA800 mA200 mA700 mA @5V

Power sources		microUSB or GPIOmicroUSB or GPIOmicroUSB or GPIOmicroUSB or GPIOmicroUSB or GPIOmicroUSB or GPIOmicroUSB or GPIOmicroUSB or GPIO

Power Over Ethernet		- with PoE HatNoNoNoNoNoNoNo
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