The Raspberry Pi 2 Model B

The Raspberry Pi 2 Model B is a 900MHz quad-core ARM Cortex-A7 Pi with 1GB RAM. This is a dramatically enhanced raspberry pi which provides a very responsive desktop experience.

It also retains a lot of features of the Model B plus as well.

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

Externally the new Raspberry Pi 2 Model B looks a lot like the B+.

The new raspberery pi 2 new model b single board computer

Raspberry Pi 2 model B

Raspberry pi model b vs raspberry pi model b plus vs raspberry pi 2 model b

The raspberry pi model B is on the left the raspberry pi model b + is in the center and the new raspberry pi 2 model B is on the right

The New Raspberry Pi 2 is significantly faster than any previous raspberry pi. This is very evident when you get into applications that perform complex arithmetic like wolfram alpha or mathematica.

 

Wolfram Mathematica on the new raspberry pi 2

Launching Mathematica on the Raspberry Pi 2 is much quicker

 

Calculating the first million digits of Pi is quite a simple task.

wolfram mathematica calculating the first million digits of pi

If you are following along the command is

N[Pi, 1000000]

Now how about big primes… Now i realize that this is not a really big prime but it is a hefty computation for a computer the size of a credit card. How about the five trillionth prime? That would be five with twelve zeros.

wolfram mathematica on a raspberry pi calculating big primes

Again if you are trying this the command is

Prime[5000000000000]

The result is 158,308,642,985,671

If you happen to have an existing raspberry pi and want to get your image up to date for the new hardware its as simple as

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

Then you can put your existing SD card in your new raspberry pi 2 model b and boot it up.

If you are starting from scratch you can download the raspbian image here or head over to the raspberry pi download page to check out all the images available.

You may be wondering how it stacks up in the world of microcontrollers. Here it is with small group of arm based microcontrollers. Currently the Raspberry Pi 2 Model B leading the pack when it comes to desktop performance with the Pcduino 3 running a close second.

Arm based Microcontrollers

5 thoughts on “The Raspberry Pi 2 Model B

  1. Pingback: A slice of raspberry pi | One Mans Anthology

      1. Lonnie Howell

        Sorry, been awhile. Weather station is waiting on some parts, I ordered the wrong UV sensor, it was an amplified version (used for indoors) and would have just washed out in the sun so I’m waiting on the unamplified one to arrive. I have everything mounted and it’s about half wired up so I figure I have about a hour of work left before it’s done (after I get my replacement part that is).

        Oh, quick trick if you ever build one with a UV sensor. UV transparent glass is outrageously priced and you have a minimum order so I came up with a better idea. I had a few burnt EPROMS laying around, you know the ones with the windows? Those have to be UV transparent so if you have a steady hand you can split the chip in half leaving the upper part with the ready made UV window 😉

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