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Has it really been four years since the Raspberry Pi blasted onto the single-board computer scene? Well, information technology has and to gloat the Raspberry Pi Foundation has released its latest version, Raspberry Pi 3, which is more of an development than a revolution.

The latest Raspberry Pi from the Raspberry Pi Foundation is hither. Post-obit the Raspberry Pi 2 from one year ago, it has new wireless connectivity and an improved processor that lowers the cost of having a desktop computer and opens the door board to exciting new projects from uncomplicated servers to complex sensor networks and much more.

Powered past a BCM2837 SoC (Organisation on a Bit) and featuring a 64-bit ARM Cortex A53 quad core processor running at i.2GHz, the Pi 3 has quite a powerful processor. Notwithstanding, there’s no RAM upgrade this time, which leaves information technology with 1GB of RAM. There is a subtle upgrade on Pi three is the VideoCore IV which handles video and graphics at present clocking in at 400MHz compared to earlier models at 250Mhz.

Physically the Raspberry Pi 3 looks very similar to the Pi 2; the only noticeable changes are the locations of the status LEDs and a new fleck on the underside of the Pi. This chip is the BCM43438, which provides Wi-Fi b/1000/n and Bluetooth on the board, and removes the need for USB dongles.

Bluetooth 4.1 provides both a classic and depression energy (LE) method of connecting to devices. Bluetooth LE is an heady prospect as it enables low-ability hardware applications, such equally beacons, that can interact with devices such as smartphones and tablets.

Cleverly, the antenna used for wireless communications is located on the outer border of the lath, just out of the way of any addition boards that may interfere with the point. In our tests we plant the Wi-Fi to be equally sensitive equally the official Wi-Fi dongle and just as piece of cake to use.

Built-in wireless communications is a large bargain for the Raspberry Pi and enables the Pi to be used as a an IoT (Internet of Things) platform for very trivial outlay. To utilise these new wireless components you’ll need to update your Raspbian image to the latest version or download and flash the latest epitome to an 8GB or larger micro SD card.

The latest Raspbian image also comes with refinements needed for the Pi iii, such as new firmware that will enable the Pi 3 to run at full capacity. These new wireless devices exercise come up at a cost, with the Pi 3 consuming near one and half times more ability than the Pi 2. This means that the Pi 3 needs a reliable power supply, with a recommendation being a 2.5A power supply when existence used with add together-on boards that use motors or neopixels.

The Pi 3 comes with four USB ports and an Ethernet port, which provides Fast Ethernet, 100Mbit/s, and is routed via the LAN9514 fleck, which has been the standard since the Model B+ Pi was released in mid 2014. Many have criticised this conclusion as it prevents the use of Gigabit Ethernet, merely calculation that to the board would have increased the cost to a higher place the magic $35 (around £32, or AUS$47) price point.

The Pi 3 provides an incremental speed increment when compared to the Pi 2, figures quoted past the Foundation state effectually l-60% when running 32-bit lawmaking on the new processor. Currently, OSes do non nonetheless apply the fleck’due south 64-bit style; the speed boost is mainly due to a series of architectural enhancements.

Terminal verdict

The Raspberry Pi 3 is a remarkable slice of engineering science. True, it may not be the most revolutionary upgrade from the Pi 2, but it builds upon a rich community of support and maintains a level of backwards compatibility to boards and projects created for earlier models of Pi to be used.

The arrival of wireless communications on the lath enables IoT projects at a lower cost point and helps further the goal of the Raspberry Pi, providing a platform for tinkering and experimentation that’s depression cost and well supported.

This review of the Raspberry Pi 3 was originally published in Linux Format.
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