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by unwind 4790 days ago
This is much smaller than most Arduinos (certainly smaller than the official Arduinos).

Processor-wise I guess it should be comparable to the Arduino Due (http://arduino.cc/en/Main/ArduinoBoardDue) which has an 84 MHz Cortex-M3 (the Spark Core runs at 72 MHz). The Core seems to have more code space, with a 2 MB external flash.