Diff: MAX30100_SpO2Calculator.h

Revision:

0:010b908e2187

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MAX30100_SpO2Calculator.h	Fri Nov 25 00:52:54 2016 +0000
@@ -0,0 +1,41 @@
+/*
+Arduino-MAX30100 oximetry / heart rate integrated sensor library
+Copyright (C) 2016  OXullo Intersecans <x@brainrapers.org>
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef MAX30100_SPO2CALCULATOR_H
+#define MAX30100_SPO2CALCULATOR_H
+
+#include <stdint.h>
+
+#define CALCULATE_EVERY_N_BEATS         3
+
+class SpO2Calculator {
+public:
+    SpO2Calculator();
+
+    void update(float irACValue, float redACValue, bool beatDetected);
+    void reset();
+    uint8_t getSpO2();
+
+private:
+    static const uint8_t spO2LUT[43];
+
+    float irACValueSqSum;
+    float redACValueSqSum;
+    uint8_t beatsDetectedNum;
+    uint32_t samplesRecorded;
+    uint8_t spO2;
+};
+
+#endif
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