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Micro Bit reunites BBC and ARM for grand education initiative
The BBC Micro Bit programmable device for school children was first announced back in March, along with a prototype. And the finished article was formally launched today at an event in Broadcasting House, London.
Around 1 million of the devices will be given to all Year 7 children (11/12 year-olds) in the UK by late October (an online simulator, to help teachers get to grips with it, will be available in September).
Deliberately invoking the legacy of the BBC Micro of the early 1980s, the device is aiming to change the emphasis from consumption to creation when it comes to young people and technology.
As well as open sourcing the technology behind the Micro Bit, the BBC is also setting up a not-for-profit company to license the device and make it commercially available to everyone who is interested.
Citing the original BBC Micro, Tony Hall, director-general of the BBC, said at the launch: “We want to take the legacy and reinvent it for our age, so that future generations can say ‘this inspired me'”.
The BBC Micro was part of a BBC Computer Literacy Project and it was designed and built by Acorn Computer, which developed the ARM (Acorn RISC Machine) architecture that is so prevalent today in mobile devices, and at the heart of the Internet of Thuings concept.
From Acorns to IoT
The Micro Bit collaboration actually involves a wide range of other companies and organisations, such as Samsung, Nordic Semiconductor, Farnell element14, Bluetooth SIG, Technology Will save Us, Barclays Bank, Microsoft, Lancaster University, Wellcome Trust and more.
The spec? Tongue in cheek, the Head of BBC Learning, Sinead Rocks, said that the device was faster and smaller than the BBC Micro (18x faster, 70x smaller and 617x lighter, to be precise). It runs on a 32-bitARM Cortex-M0 CPU, the smallest ARM processor available.
She described it as having 25 programmable LEDs, two physical buttons, and an accelerometer and magnetometer (compass) for motion and positioning information. And its Bluetooth Smart capable.
The operating system has been developed by Lancaster University, led by Dr. Joe Finney, and uses ARM mbed technology for interfacing to the hardware.
There are two code editing interfaces, both developed by Microsoft: the Block Editor for younger users, and the Touch Development Environment, for older users. You can code in Java, C++, Python and Block.
There are five I/O rings to connect the Micro Bit to other devices or sensors using crocodile clips or 4mm banana plugs, to send commands to and from the rings, to power devices like robots and motors.
The 4cm by 5cm device is powered via a USB cable, or otherwise via a battery-pack accessory
