Raspberry Pi 4B + box + 32GB microSD + accessories - RAM size: 4 GB

The Raspberry Pi 4 Model B is the latest product in the popular Raspberry Pi series of computers. It offers unprecedented increases in processor speed, multimedia performance, memory and connectivity over the previous generation Raspberry Pi 3 Model B+, while maintaining backwards compatibility and similar power consumption. Raspberry Pi 4 Model B provides end-user desktop performance comparable to entry-level x86 PC systems. Key features of this product include a high-performance 64-bit quad-core processor, dual display support with up to 4K via a pair of micro-HDMI ports, hardware video decoding up to 4Kp60, 4GB of RAM, dual-band 2.4/5.0GHz wireless LAN, Bluetooth 5.0, Gigabit Ethernet, USB 3.0, and PoE capability (via a special PoE HAT add-on). Dual-band wireless LAN and Bluetooth have modular compliance certification, allowing the board to be included in end products with noticeably reduced compliance testing, improving both price and speed to market.

Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5 GHz
4 GB LPDDR4 SDRAM
2.4 GHz and 5.0 GHz IEEE 802.11b/g/n/ac wireless LAN, Bluetooth 5.0, BLE
True Gigabit Ethernet
2x USB 3.0 port, 2x USB 2.0 port
Fully backward compatible 40-pin GPIO header
2x micro HDMI ports supporting up to 4K 60 Hz video resolution
2-lane MIPI DSI/CSI ports for camera and display
4-pole stereo audio and composite video port
MicroSD card slot for booting the operating system and data storage
Requires 5.1 V, 3 A power supply via USB-C or GPIO
PoE (Power over Ethernet) option (requires PoE HAT)

Application
Embedded Design & Development, Hobby & Educational, IoT (Internet of Things), Communications & Networks

Areas of application (examples)

The Raspberry Pi 4 Model B is a highly versatile minicomputer and can be used for a wide range of applications. The following is an overview of some of the most common uses:

Home media server: the Raspberry Pi 4 has enough processing power and memory capacity to play media in HD and 4K, making it ideal for use as a home media server. It can be used to play movies, music or other media, both locally stored and streamed from the Internet.

Retro game console: Using emulation programs such as RetroPie, the Raspberry Pi 4 can act as a retro gaming console that can play thousands of older video games.

Home automation and IoT projects: the Raspberry Pi 4 has sufficient computing resources to control a range of Internet of Things (IoT) devices. It can be used to control lights, thermostat, home security and other home automation functions.

Personal computer: with an operating system like Raspberry Pi OS, Raspberry Pi 4 can function as a fully functional personal computer for web browsing, document writing, programming and other common tasks.

Teaching tool: its affordability and flexibility make the Raspberry Pi 4 a great tool for teaching programming and computer science. It can also be used for many STEM projects and experiments.

Robotics and embedded systems: the Raspberry Pi 4 can be used as the brain for all kinds of robotic projects or embedded systems such as autonomous vehicles, drones, automated irrigation systems and much more.

Software development: the Raspberry Pi 4 is capable of running many different programming languages and development tools, making it useful for software developers.

Server applications: the Raspberry Pi 4 can also be used as a small, energy-efficient server for a variety of purposes such as web hosting, cloud storage, or as a VPN server

Video surveillance or CCTV: Raspberry Pi 4 can be used to create a surveillance system or as part of a home security system. By connecting a Raspberry Pi camera, you can create your own security camera with various advanced features such as motion detection, real-time video streaming, saving footage to an SD card or the cloud, etc.

Digital art and installations: thanks to its compact size and ability to control different types of hardware, Raspberry Pi 4 is often used in digital art installations. It can control LEDs, motors, sensors, displays and other hardware components to create interactive artwork.

Network ad-blocker: Using software such as Pi-hole, the Raspberry Pi 4 can act as a network ad-blocker, blocking unwanted ads on all devices connected to your home network.

Virtual assistant: Raspberry Pi 4 can be used to create your own virtual assistant using open-source software such as Mycroft. Such an assistant can provide functionality similar to commercial products like Amazon Echo or Google Home, but with more customisation and control over your data.

Machine learning and AI: Raspberry Pi 4 is powerful enough to run simple artificial intelligence (AI) or machine learning projects. It can be used for teaching the basics of these disciplines, or for practical applications such as face or object recognition.

Mobile computing: the Raspberry Pi 4 can be powered by battery, making it a powerful mobile computer you can take anywhere. Combined with a touchscreen and keyboard, it can create a truly portable computer.

Weather station: by connecting the appropriate sensors, Raspberry Pi 4 can collect and analyse data on temperature, humidity, pressure, wind and other meteorological factors. It can also receive and process data from weather servers.

A microcontroller for hardware and electronics: the Raspberry Pi 4 can be used as a central unit for controlling a wide range of hardware devices and electronic circuits, be it LED lights, motors, sensors or other components. Combined with a platform such as Arduino, Raspberry Pi can be used for complex hardware projects.

Cryptocurrency node: the Raspberry Pi 4 is powerful enough to serve as a node for some cryptocurrency networks. Although cryptocurrency mining on Raspberry Pi is probably not efficient due to low performance, it can still be used for running a lightweight node or for learning about blockchain technologies.

Digital billboard or information board: The Raspberry Pi 4 can be connected to a large display and used to display information, advertisements or other visual elements. This can be useful in shops, schools, offices or public places.

Playing music or internet radio: the Raspberry Pi 4 can be used as a streaming server for music or as an internet radio. It can be connected to speakers and controlled via a mobile app or web interface.

Educational tools for children: the Raspberry Pi 4 can also be used to create educational tools for children. There are many projects and apps designed to teach kids the basics of coding, electronics or simple STEM projects.

These are just a few of the many possible uses for the Raspberry Pi 4. Its versatility and open nature mean that the possibilities for its use are almost endless.