dc42 / arduino Goto Github PK

unsigned long currentAcc = 0;
unsigned int count = 0;
unsigned long prevMicros = micros() - sampleInterval ;
while (count < numSamples)
{
if (micros() - prevMicros >= sampleInterval)
{
int adc_raw = analogRead(currentPin) - adc_zero;
currentAcc += (unsigned long)(adc_raw * adc_raw);
++count;
prevMicros += sampleInterval;
}
}

float rms = sqrt((float)currentAcc/(float)numSamples) * (75.7576 / 1024.0);
Serial.println(rms);

Hi,

Impressed with the code .. would like to contribute if possible, but not sure if this project has stalled or has been shelved as see no activity for a while.

Can you please respond to some of the issues?

I was not able to find licencing information. For purposes of collaborating and sharing knowledge, it would be a noble act to licence the code under a free or at least, under a open source, licence, like the GNU Public Licence or the MIT licence, and the images under a suitable licence like one of the creative commons ones.

Just started learning Arduino, don't know these

Hi DC42,

It is possible to share full schematics of IB Metal Detector and description? I'm interested diameter of MD head, number of turn in a coil and wire size (AWG).

Thanks,
ta.

hello
i'm trying to build this metal detector whereas i'm not really able to understand what mean the code, especially the ISR part.
However, i think that i'm good whit that and now, i'm able to print on the monitor series the debuging / diagnostic part.

but im' not sure to be able to read that.

May you can, please, give us some exemple of a good diagnostic report for the 2 indepedently-calculated gains and phases ? it should be very helpfull

thank you very mutch for your help and your participation in this topic ;)
https://forum.arduino.cc/index.php?topic=65712.15