The Raspberry Pi is a credit-card-sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools. Characteristics: has a Broadcom BCM2835 system on a chip (SoC), which includes an ARM1176JZF-S 700 MHz processor (The firmware includes a number of “Turbo” modes so that the user can attempt overclocking, up-to 1 GHz, without affecting the warranty), VideoCore IV GPU, and originally shipped with 256 megabytes of RAM, later upgraded to 512MB. It does not include a built-in hard disk or solid-state drive, but uses an SD card for booting and long-term storage. The Foundation’s goal is to offer two versions, priced at US$ 25 and US$ 35. The Foundation started accepting orders for the higher priced model on 29 February 2012.
| Model A | Model B | |
|---|---|---|
| Target price: | US$ 25 | US$ 35 |
| SoC: | Broadcom BCM2835 (CPU, GPU, DSP, and SDRAM) | |
| CPU: | 700 MHz ARM1176JZF-S core (ARM11 family) | |
| GPU: | Broadcom VideoCore IV, OpenGL ES 2.0, 1080p30 h.264/MPEG-4 AVC high-profile decoder | |
| Memory (SDRAM): | 256 MB (shared with GPU) | |
| USB 2.0 ports: | 1 | 2 (via integrated USB hub) |
| Video outputs: | Composite RCA (PAL & NTSC), HDMI (rev 1.3 & 1.4), raw LCD Panels via DSI14 HDMI resolutions from 640×350 to 1920×1200 plus various PAL and NTSC standards. | |
| Audio outputs: | 3.5 mm jack, HDMI | |
| Onboard storage: | SD / MMC / SDIO card slot | |
| Onboard network: | None | 10/100 Ethernet (RJ45) |
| Low-level peripherals: | 8 × GPIO, UART, I²C bus, SPI bus with two chip selects, +3.3 V, +5 V, ground | |
| Power ratings: | 500 mA (2.5 W) | 700 mA (3.5 W) |
| Power source: | 5 volt via MicroUSB or GPIO header | |
| Size: | 85.60 × 53.98 mm (3.370 × 2.125 in) | |
| Weight: | 45 g (1.6 oz)[65] | |
| Planned operating systems: | Debian GNU/Linux, Fedora, Arch Linux ARM, RISC OS | |
Enjoy! (:
home lab electronics 