Mini dators RASPBERRY PI 4 B ar 8GB RAM

Long-awaited, latest version of a populat minicomputer Raspberry Pi 4 model B. This model has a more efficient processor, Broadcom BCM2711 quad-core 64-bit ARM-8 Cortex-A72 1.5 GHz, two microHDMI ports, two USB 3.0 ports and 2 USB 2.0 ports, as well as a USB-C power supply connector. In addition, the board is supplied with dual-band 2.4 GHz and 5 GHz wi-fi, Bluetooth 5 / BLE, Ethernet port with speed to 1000 Mbps and the possibility of power supply via PoE. The other characteristics remain the same as in model 3 B+. Onboard there are still: 40 pin GPIO header (2x20 pin, raster: 2.54), microSD slot for memory cards, DSI and CSI connectors, and four mounting holes.

 

What is new in Raspberry Pi 4?

Feature	Description
3 versions of minicomputer	Raspberry Pi 4 is sold in three versions, differing in RAM: 1 GB of RAM (RPI4-MODBP-1GB) discontinued 2 GB of RAM (RPI4-MODBP-2GB) 4 GB of RAM (RPI4-MODBP-4GB) 8 GB of RAM (RPI4-MODBP-8GB)
Processor BCM2711	Chipset Broadcom BCM2711 64-bit core Quad-core ARM-8 Cortex-A72 PROCESSOR, running at 1.5 GHz offers more power than the previous Raspberry Pi models.
2 microHDMI display ports	Raspberry Pi 4 has two microHDMI ports, making it possible to simultaneously connect two HDMI monitors with resolutions up to 4K (4K and 60 fps for a single display, and 4K and 30 fps for two displays).
2 USB 3.0 ports	Minicomputer has 4 USB port. Two in 2.0 version and two powerful USB 3.0 ports.
Ethernet speed up to 1000 Mbps	Ethernet connector in full Gigabit version, ethernet provides faster cable Internet.
USB-C power connector	The power connector has been adapted to modern standards. Raspberry Pi has a USB-C connector. The manufacturer recommends a supply voltage of 5 V / 3 A.
Bluetooth 5.0	The new wireless standard, offering data transfer speeds up to 2 Mb/s.
Layout of connectors	The layout of the board remains the same, but the layout of the connectors has changed.

 

Image and sound in minicomputer Raspberry Pi 4

Raspberry Pi has two microHDMI ports, through which it can pass the image and sound even at 4 K and 60 fps for one display and 30 fps for two displays. Built-in 4-pin 3.5 mm Jack for headphones, speaker systems or for video output using standard RCA Composite. Raspberry Pi supports the compression standard H265 (4Kp60), H. 264 (1080p30) and graphics OpenGL ES 1.1, 2.0 and 3.0.

Operating system for Raspberry Pi

The drive of the minicomputer is still the microSD memory card. The manufacturer did not use memory eMMC. The operating system can be downloaded via the computer with the card reader. In our offer you will find a corresponging card with preinstalled software NOOBs that enables you to install one of systems: Raspbian, Openelec, RaspBMC, or OSMC Linux at the first run. There is also the possibility to install Windows 10 IoT independently.

 

Communication in Raspberry Pi 4

Raspberry Pi is equipped with 4 popular communication interfaces, available in a traditional PC. In addition to the previously mentioned audio and video connectors the user has at their disposal:

• 2 microHDMI ports for simultaneous connection of two videos receivers even in 4K.

 

• 2 USB 3.0 and 2 USB 2.0 ports, which can connect, for example, a mouse, a keyboard, a wi-fi card or USB flash drive. If you find that there is not enough ports, you can increase their number using an external USB HUB.

 

• Ethernet connector, that has the ability to directly connect to LAN network, now in Gigabit speed.
• WiFi module - dual band 2.4 GHz and 5 GHz, 802.11 b/g/n/ac, working with the drivers built in the latest system Raspbian / NOOBs
• Bluetooth 5 module - is a popular wireless network in the newest 5.0 standard
• GPIO - 40 pin GPIO header used for LEDs, buttons, motor drivers and interfaces: I2C, SPI, and UART and many more.

 

Power supply of minicomputer Raspberry Pi 4

To power up Raspberry Pi 4 you need a power supply with USB-C connector and an output voltage of 5 V. The minimum recommended current is 3 A.