Using Raspberry Compact ComputersPi, launched over eight years ago, is gaining popularity among computer system developers, engineers, and inventors of high-tech gadgets. In order to meet modern requirements for computer systems, the developers of the Raspberry Pi Foundation decided to release the Raspberry Pi 4 model with 8 GB of RAM.
More recently, in February 2020, duringCelebrating the eighth anniversary of the launch of the first Raspberry Pi series, the company reduced the price of the Raspberry Pi 4 Model B microcomputer from 2 GB of RAM (from $ 45 to $ 35). It was also decided to completely discontinue the model with a minimum amount of RAM with a capacity of 1 GB. Thus, at present, the Raspberry Pi 4 is manufactured with 2 GB of RAM ($ 35), 4 GB ($ 55) and a new model with 8 GB of RAM for $ 75.
It was 8 GB of RAM that was the original goal whenRaspberry Pi 4 launched last summer. However, at that time, the production of such a model was impossible due to the lack of a suitable 8 GB LPDDR4 module in size. Currently, the necessary 8 GB LPDDR4 blocks are produced by Micron, which allows the Raspberry Pi Foundation to expand its lineup.
Updated Raspberry Pi 4 model with 8 GB, notwill receive significant design changes. In addition to the new LPDDR4 module, a new switching voltage regulator, located near the USB-C power connector, will be installed in the microcomputer. Such a change should not affect existing projects created on the basis of the Raspberry Pi 4 PC.
Technical Parameters of Raspberry Pi 4 Modelsremain unchanged. The hardware base of the computer will be SoC Broadcom BCM2711 on a 4-core 64-bit Cortex-A72 processor (ARM v8 with a frequency of 1.5 Hz). The computer uses wireless communication using IEEE 802.11ac Wi-Fi (2.4 and 5.0 GHz) and Bluetooth 5.0 BLE.
There is a Gigabit Ethernet connector, two connectors eachUSB 3.0, USB 2.0 and micro-HDMI. To expand the memory, you can use microSD. Power is supplied through the USB-C connector. Double-row MIPI, GPIO connectors allow you to connect various interface boards.
The general release of Raspberry Pi computers is already at the end2019 exceeded 30 million units. In total, the company has developed over 10 models of the device, among which there is the cheapest entry-level model Raspberry Pi Zero, the cost of which is only $ 5.