lowpassFilt method
Implementation
double lowpassFilt(double sample) {
filteredData = 0;
sqData = pow(sample, 2).toDouble();
lpBuffer.add(sqData);
if (lpBuffer.length == LP_WINDOW) {
filteredData = lpBuffer.reduce((a, b) => a + b);
lpBuffer.removeAt(0);
}
return filteredData;
}