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Fix IR and RED values interpretation from Arduino #3

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Fix IR and RED values interpretation from Arduino #3

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dc1662b
Averages all values in the spo2_array, without skipping the first 50.
RVillani Jun 6, 2017
f2c5475
Fix interpretation order of the IR and RED values from Arduino, givin…
RVillani Jun 6, 2017
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2 changes: 1 addition & 1 deletion processing/openview_pulseox/SPO2_cal.pde
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ public class SPO2_cal
{
SPO2 = 0;
int k = 0;
for(int i = 50; i < spo2_array.length; i++)
for(int i = 0; i < spo2_array.length; i++)
{
// float roundoff = Math.round((spo2_array[i] * spo2_array[i])*100)/100;
spo2_cal_array[k++] = spo2_array[i] * spo2_array[i];
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22 changes: 11 additions & 11 deletions processing/openview_pulseox/openview_pulseox.pde
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Original file line number Diff line number Diff line change
Expand Up @@ -150,9 +150,9 @@ public void setup() {
}
time = 0;
g.GraphColor = color(0, 255, 0);
g.Title = "RED";
g.Title = "IR";
g1.GraphColor = color( 0, 255, 0);
g1.Title = "IR";
g1.Title = "RED";
// myFilter = new SignalFilter(this);
}

Expand Down Expand Up @@ -263,33 +263,33 @@ void ecsProcessData(char rxch)
{
int data1 = ecsParsePacket(DataRcvPacket1, DataRcvPacket1.length-1);
int data2 = ecsParsePacket(DataRcvPacket2, DataRcvPacket2.length-1);
receivedVoltage_RED = data1 * (0.00000057220458984375) ;
receivedVoltage_IR = data2 * (0.00000057220458984375) ;
receivedVoltage_IR = data1 * (0.00000057220458984375) ;
receivedVoltage_RED = data2 * (0.00000057220458984375) ;

time = time+0.1;
xdata[arrayIndex] = time;

//receivedVoltage_RED = myFilter.filterUnitFloat((float)receivedVoltage_RED);
//receivedVoltage_IR = myFilter.filterUnitFloat((float)receivedVoltage_IR);
//receivedVoltage_RED = myFilter.filterUnitFloat((float)receivedVoltage_RED);


AvgYdata[arrayIndex] = (float)receivedVoltage_RED;
AvgZdata[arrayIndex] = (float)receivedVoltage_IR;
AvgYdata[arrayIndex] = (float)receivedVoltage_IR;
AvgZdata[arrayIndex] = (float)receivedVoltage_RED;
value1 = (float)( AvgYdata[arrayIndex] - averageValue(AvgYdata));
value2 = (float)( AvgZdata[arrayIndex] - averageValue(AvgZdata));
ydata[arrayIndex] = value1;
zdata[arrayIndex] = value2;

float RedDC = (float) averageValue(AvgYdata);
float IrDC = (float) averageValue(AvgZdata);
float IrDC = (float) averageValue(AvgYdata);
float RedDC = (float) averageValue(AvgZdata);

arrayIndex++;
if (arrayIndex == pSize)
{
arrayIndex = 0;
time = 0;
RedAC = s.SPO2_Value(ydata);
IrAC = s.SPO2_Value(zdata);
IrAC = s.SPO2_Value(ydata);
RedAC = s.SPO2_Value(zdata);
float value = (RedAC/abs(RedDC))/(IrAC/abs(IrDC));

/******** Emprical Formalae *********/
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