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 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.
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
| Model | Specifications | Price |
|---|---|---|
| Pi 4 Model B | CPU: Broadcom BCM2711 64 bity Quad-core ARM-8 Cortex-A72 RAM: 4GB USB: 4 port (2xUSB 3.0 2xUSB 2.0) Connectivity: 1 GB/s Ethernet, Bluetooth 5.0 | $55 |
| Pi 3 Model B | CPU: 1.2GHz 64-bit quad-core ARMv8 RAM: 1GB USB: 4 ports Connectivity: Ethernet, Wi-Fi, Bluetooth | $35 |
| Pi 2 Model B | CPU: 900MHz 32-bit quad-core ARMv8* RAM: 1GB USB: 4 ports Connectivity: Ethernet | $35 |
| Pi 1 Model B+ | CPU: 700MHz 32-bit single-core ARMv6 RAM: 512MB USB: 4 ports Connectivity: Ethernet | $25 |
| Pi 1 Model A+ | CPU: 700MHz 32-bit single-core ARMv6 RAM: 512MB** USB: 1 port Connectivity: None | $20 |
| Pi Zero | CPU: 1GHz 32-bit single-core ARMv6 RAM: 512MB USB: 1 micro USB OTG port Connectivity: None | $5 |
The latest and faster CPU you can find on PI 4 – model with 4GB of RAM