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Threeethan/free_sram

Created January 6, 2014 17:28
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Quick and dirty estimate of free ram on Arduino
Raw
free_sram
int freeRam () {
extern int __heap_start, *__brkval;
int v;
return (int) &v - (__brkval == 0 ? (int) &__heap_start : (int) __brkval);
}
Serial.print("Free Ram = "); Serial.println (freeRam());
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