Raspberry PI

Raspberry PI is a small PC computer with ARM CPU on board. It can be simply used as central controller of your home or office logical network. 

Raspberry PI applications

Raspberry PI is heart of almost our every system and project. 

Raspberry PI is not a ordinary PC or Laptop. It is equipped with  GPIO Headers, JTAG Headers, RCA video out, Audio out, status LED, DSI Display connector, SD CARD SLOT, micro USB power (5V 1A DC), Broadcom BCM2835 ARM11 700 Mhz, CSI connter camera, ethernet out, USB 2.0.

Rasperry PI Model B

The mainboard Modemo B is Broadcom BCM2835. The Central Processor Unit is 700Mhz ARM11 family.
The weight is 45g. The size is 86,50 mm width and 53,98 mm height. The operating systems
are Arch Linux, Debian GNU/Linux, Fedora.

Pretty impressive ?

You can collect analog and digital data from variety inputs like temperature sensor, photocells , PIR detectors and many others.  

For a few year after the Model B release date some new models of Raspberry PI arrived

List of Raspberry PI models with prices

Pi 4 Model BCPU: Broadcom BCM2711 64 bity Quad-core ARM-8 Cortex-A72
USB: 4 port (2xUSB 3.0 2xUSB 2.0)
Connectivity: 1 GB/s Ethernet, Bluetooth 5.0
Pi 3 Model BCPU: 1.2GHz 64-bit quad-core ARMv8
USB: 4 ports
Connectivity: Ethernet, Wi-Fi, Bluetooth
Pi 2 Model BCPU: 900MHz 32-bit quad-core ARMv8*
USB: 4 ports
Connectivity: Ethernet
Pi 1 Model B+CPU: 700MHz 32-bit single-core ARMv6
RAM: 512MB
USB: 4 ports
Connectivity: Ethernet
Pi 1 Model A+CPU: 700MHz 32-bit single-core ARMv6
RAM: 512MB**
USB: 1 port
Connectivity: None
Pi ZeroCPU: 1GHz 32-bit single-core ARMv6
RAM: 512MB
USB: 1 micro USB OTG port
Connectivity: None

The latest and faster CPU you can find on PI 4 – model with 4GB of RAM