Raspberry Pi

October 11, 2015

Raspberry pie is a portable, powerful minicomputer. 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.

Comparative details

Model B Model B+
Memory 512 MB SDRAM @ 400 MHz 512 MB SDRAM @ 400 MHz
Chip Broadcom BCM2835 SoC Broadcom BCM2835 SoC
CPU 700 MHz Low Power ARM1176JZ-F 700 MHz Low Power ARM1176JZ-F
GPU Dual Core VideoCore IV Multimedia Co-Processor Dual Core VideoCore IV Multimedia Co-Processor
Networking 10/100 Ethernet RJ45 jack 10/100 Ethernet RJ45 jack
USB 2 x USB 2.0 4 x USB 2.0
Video out HDMI (rev 1.3 & 1.4), Composite RCA HDMI, Composite RCA (shared with audio jack)
Resolutions 640×350 to 1920×1200, including 1080p, PAL & NTSC standards 640×350 to 1920×1200, including 1080p, PAL & NTSC standards
Audio out Multi-Channel HD Audio over HDMI, Stereo from 3.5 mm jack Multi-Channel HD Audio over HDMI, Stereo from 3.5 mm jack
Storage SD card slot MicroSD card slot
GPIO 26-pins 40-pins
Other Connectivity 1x CSI-2 for Raspberry Pi camera modules,
1x DSI for Raspberry Pi displays
1x CSI-2 for Raspberry Pi camera modules,
1x DSI for Raspberry Pi displays
Power Rating 750mA up to 1.2A @ 5V 600mA up to 1.8A @ 5V
Power Source 5V via microUSB 5V via microUSB
Dimensions 85.6 x 53.98 x 17mm 85 x 56 x 17mm

comparison-bottom picomparison-top pi

python basics can be found in: Python Programming for Raspberry Pi_ Sams Teach Yourself in 24 Hours – Richard Blum