After working with various sensors and not being happy with the speed of mathematical calculations, Arduino and AVR enthusiast Alan Burlison has described and demonstrated the use of fixed-point arithmetic with Arduino. This method can speed up calculation times and is necessary as the AVR microcontrollers used in the Arduino don't have floating-point support. Alan demonstrates various functions and in doing so illustrates the strengths and weaknesses of the AVR - even working down to the assembler level.
Interesting reading, and useful for those of you squeezing the most out of your microcontrollers. And for more, we're on twitter and Google+, so follow us for news and product updates as well.
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Quite simple the EtherMega is the fully-loaded Arduino-compatible board on the market today. Apart from being completely Arduino Mega2560-compatible, it includes full Ethernet interface, a microSD card socket, full USB interface, optional Power-over-Ethernet support and still has a circuit prototyping area with extra I2C interface pins. So if your project is breaking the limits, upgrade to the EtherMega today.