Does this sound familiar to you? After spending many hours on optimizing
for speed and memory your super-duper MCU application, you can only
conclude that it will not run on an Arduino board. You have built the
shield (the Arduino compatible extension board) with your special I/O
and you wrote most of the software, but these last functions that should
add that finishing touch just don’t fit in the board’s memory. Maybe
Rascal can help?
Built around a 400 MHz AT91SAM9G20 ARM9 from Atmel, the Rascal is an
open source Linux board compatible with Arduino extension cards or
shields. Programming the board is easy thanks to a library written in
Python from Pytronics that allows easy access to peripherals and
shields. The Rascal’s firmware comes with a web server that can serve as
a programming interface; you can write your applications directly in a
web browser connected to the Rascal board.[Link]
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