The Raspberry Pi has sold millions of copies worldwide since its first release in early 2012 and is still very popular. Because many Raspberry Pi users do not only have a single-board computer at home, but also 4-5 pieces.
One functions as a HD media player with external hard disk for the home cinema or as an Internet radio with display, the next as a webcam server for camera surveillance with live stream to the mobile phone, then another for home automation such as heating or lighting control and another as a simple WLAN printer server or as a mini-computer for general surfing on the Internet, to name just a few application scenarios.
You will notice that the little “jack-of-all-trades” can not only do a lot, but is also extremely cheap and that is what makes it so attractive. The only thing you should bring along is a flair for programming and not even that, because you can also simply reprogram according to the instructions in forums or books, or you can easily install a finished image on the Raspberry Pi – have the courage to do so!
What’s new with Raspberry Pi 4 B?
Old Raspberry Pi 3 B+ – 1.4 GHz ARM Cortex-A53 Quad-Core CPU
– 1 GB LPDDR2 SDRAM
– Gigabit LAN RJ45 (via USB 2.0 with up to 300 Mbit)
– Bluetooth 4.2
– 4x USB 2.0
– HDMI (1080p @H.264)
– microUSB @ 5V/2.5A
New Raspberry Pi 4 B – 1.5 GHz ARM Cortex-A72 Quad-Core CPU
– 1 GB, 2 GB or 4 GB LPDDR4 SDRAM
– Gigabit LAN RJ45 (with up to 1000 Mbit)
– Bluetooth 5.0
– 2x USB 2.0 / 2x USB 3.0
– 2x microHDMI (1x 4k @60fps or 2x 4k @30fps)
– USB Type-C @ 5V/3A
There are the following 3 different variants
– Raspberry Pi 4 B 2GB with 2 GB memory
– Raspberry Pi 4 B 4GB with 4 GB memory
– Raspberry Pi 4 B 8GB with 8 GB memory
Due to the other connections, like 2x microHDMI instead of 1x HDMI as well as USB Type-C instead of microUSB, but also due to the exchange of LAN port and USB port, new housings are necessary. Otherwise the existing accessories are fully compatible with the new Raspberry Pi.
- Broadcom BCM2711, Quad core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
- RAM size : 2GB – 4GB -8GB
- 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless, Bluetooth 5.0, BLE
- Gigabit Ethernet
- 2 USB 3.0 ports; 2 USB 2.0 ports.
- Raspberry Pi standard 40 pin GPIO header (fully backwards compatible with previous boards)
- 2 × micro-HDMI ports (up to 4kp60 supported)
- 2-lane MIPI DSI display port
- 2-lane MIPI CSI camera port
- 4-pole stereo audio and composite video port
- H.265 (4kp60 decode), H264 (1080p60 decode, 1080p30 encode)
- OpenGL ES 3.0 graphics
- Micro-SD card slot for loading operating system and data storage
- 5V DC via USB-C connector (minimum 3A*)
- 5V DC via GPIO header (minimum 3A*)
- Power over Ethernet (PoE) enabled (requires separate PoE HAT)
- Operating temperature: 0 – 50 degrees C ambient