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@lectroidmarc
Last active August 29, 2015 14:06
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Show free SRAM on an Arduino.
void setup () {
Serial.begin(9600);
}
void loop () {
Serial.println(freeRam());
delay(1000);
}
int freeRam () {
extern int __heap_start, *__brkval;
int v;
return (int) &v - (__brkval == 0 ? (int) &__heap_start : (int) __brkval);
}
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