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Using Arduino / Interfacing w/ Software on the Computer / Re: Arduino Pro Sends Data to the serial port for only a limited amount of time...
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on: August 11, 2011, 10:37:03 am
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const int sensor1 = A0; // pin that the sensor is attached to
const double offSetCorrection = .170;
void setup() {
Serial.begin(9600);//Sets up COM port
// Serial.println("Power Monitering System!");
}
void loop() {
int endTime = millis() + 21.66;
double sensor1Sum = 0;
int count = 0;
while (endTime > millis()){
int value = analogRead(sensor1);
double sensedVoltage = value * .0049;
double current = ((sensedVoltage-2.5) / .1);
sensor1Sum = (sensor1Sum + (current * current));
count++;
}
double RMS = sqrt((sensor1Sum/count));
if ( RMS < offSetCorrection){
RMS = 0;
}
Serial.print(":");
Serial.print(RMS, 4);
delay(1000);
}
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| Arduino Forum :: Members :: ksellstrom