Difference between revisions of "Raspberry Pi Model B+"

Revision as of 08:59, 5 August 2014

Description

Raspberry pie is a portable, powerful，and mini computer. The board length is only 85mm and width is only 56mm.Its size only as big as a credit card but it is a capable little PC. It can be used for many of the things that your desktop PC does, like high-definition video, spreadsheets, word-processing, games and more. Raspberry Pi also has more wide application range, such as music machines, parent detectors to weather stations, tweeting birdhouses with infra-red cameras, lightweight web server, home automation server, etc. It enables people of all ages to explore computing, learn to program and understand how computers work. The Raspberry Pi Model B+ provides more GPIO, more USB than Model B. It also improves power consumption, audio circuit and SD card. It is more useful for embedded projects.

Compare with Model B

The Model B+ is the higher-spec variant of the Raspberry Pi. Compared to the Model B it has:

• More GPIO. The GPIO header has grown to 40 pins, while retaining the same pinout for the first 26 pins as the Model B.
• More USB. We now have 4 USB 2.0 ports, compared to 2 on the Model B, and better hot plug and over current behavior.
• Micro SD. The old friction-fit SD card socket has been replaced with a much nicer push-push micro SD version.
• Lower power consumption. By replacing linear regulators with switching ones we’ve reduced power consumption by between 0.5W and 1W.
• Better audio. The audio circuit incorporates a dedicated low-noise power supply.
• Neater form factor. We’ve aligned the USB connectors with the board edge, moved composite video onto the 3.5mm jack, and added four squarely-placed mounting holes.

Specifications

• Chip: Broadcom BCM2835 SoC
• Core architecture: ARM11
• CPU: 700 MHz Low Power ARM1176JZFS core
• GPU: Dual Core VideoCore IV

     Open GL ES 2.0, hardware-accelerated OpenVG, 1080p30 H.264 high-profile decode
     Capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure

• Memory: 512MB SDRAM
• Operating System: Boots from Micro SD card, running a version of the Linux operating system

                  Supports Debian GNU/Linux, Fedora, Arch Linux, RISC OS and More

• Power: Micro USB socket 5V, 2A
• Ethernet: 10/100 BaseT Ethernet socket
• Video Output: HDMI (rev 1.3 & 1.4)

              Composite RCA (PAL and NTSC)

• Audio Output: 3.5mm jack, HDMI
• USB: 4 x USB2.0 Ports with up to 1.2A output
• GPIO Interface: 40-pin 2.54 mm (100 mil) expansion header: 2x20 strip

                Providing 27 GPIO pins as well as +3.3 V, +5 V and GND supply lines

• Camera Interface: 15-pin MIPI Camera Serial Interface (CSI-2)
• JTAG: Not populated
• Display Interface: Display Serial Interface (DSI) 15 way flat flex cable connector with two data lanes and a clock lane
• Memory Card Slot: SDIO

Dimensions

85mm x 56mm x 17mm

Includes

• Raspberry Pi Model B+ Board x1
• Instruction card x1