Educational charity Raspberry Pi Foundation has released a version of Linux optimised for the £25 computer’s ARM11 processor, writes Steve Bush.
Called Raspbian, “this is the result of an enormous amount of hard work by Alex and Dom over the past couple of months, and replaces the existing Debian squeeze image as our recommended install,” said the Foundations. “Notably, it is the first official image to take full advantage of the Raspberry Pi’s floating point hardware for, amongst other things, much faster web browsing.”
There are benchmarks here.
The latest addition to the Arduino open source prototyping platform, the Leonardo microcontroller board is available from Rapid Electronics, writes Richard Wilson.
Based on the ATmega32U4 MCU, which offers 32k of flash memory, the Leonardo board has built-in USB communications. As a result it can be connected to a computer the board appears as both mouse and keyboard at the same time, enabling much more complex programming.
Rapid adds Leonardo to its other Arduino hardware, which includes the Uno, Nano and Mega boards, server modules, shields and bootloaders.
The lower cost Leonardo’s built-in USB communications brings project development more accessibly within the reach of the less experienced Arduino user. The board contains 20 digital input/output pins, 12 analogue inputs, and is supplied either with or without headers.
The ATmega32U4 chip is surface mounted, and the Leonardo board includes the standard Uno, Nano and Mega features of 16MHz clock speed, SRAM of 2.5kB and EEPROM of 1kB.