Diff: MAX30100_PulseOximeter.h

Revision:

0:010b908e2187

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MAX30100_PulseOximeter.h	Fri Nov 25 00:52:54 2016 +0000
@@ -0,0 +1,83 @@
+/*
+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_PULSEOXIMETER_H
+#define MAX30100_PULSEOXIMETER_H
+
+#define SAMPLING_FREQUENCY                  100
+#define CURRENT_ADJUSTMENT_PERIOD_MS        500
+#define IR_LED_CURRENT                      MAX30100_LED_CURR_50MA
+#define RED_LED_CURRENT_START               MAX30100_LED_CURR_27_1MA
+#define DC_REMOVER_ALPHA                    0.95
+
+#include <stdint.h>
+#include <vector>
+
+
+#include "MAX30100.h"
+#include "MAX30100_BeatDetector.h"
+#include "MAX30100_Filters.h"
+#include "MAX30100_SpO2Calculator.h"
+
+typedef enum PulseOximeterState {
+    PULSEOXIMETER_STATE_INIT,
+    PULSEOXIMETER_STATE_IDLE,
+    PULSEOXIMETER_STATE_DETECTING
+} PulseOximeterState;
+
+typedef enum PulseOximeterDebuggingMode {
+    PULSEOXIMETER_DEBUGGINGMODE_NONE,
+    PULSEOXIMETER_DEBUGGINGMODE_RAW_VALUES,
+    PULSEOXIMETER_DEBUGGINGMODE_AC_VALUES,
+    PULSEOXIMETER_DEBUGGINGMODE_PULSEDETECT
+} PulseOximeterDebuggingMode;
+
+
+class PulseOximeter {
+public:
+    PulseOximeter();
+
+    bool begin(PulseOximeterDebuggingMode debuggingMode_=PULSEOXIMETER_DEBUGGINGMODE_NONE);
+    void update();
+    float getHeartRate();
+    uint8_t getSpO2();
+    uint8_t getRedLedCurrentBias();
+    void setOnBeatDetectedCallback(void (*cb)());
+
+private:
+    void checkSample();
+    void checkCurrentBias();
+
+    PulseOximeterState state;
+    PulseOximeterDebuggingMode debuggingMode;
+//    uint32_t tsFirstBeatDetected;
+//    uint32_t tsLastBeatDetected;
+//    uint32_t tsLastSample;
+//    uint32_t tsLastBiasCheck;
+//    uint32_t tsLastCurrentAdjustment;
+    BeatDetector beatDetector;
+    DCRemover irDCRemover;
+    DCRemover redDCRemover;
+    FilterBuLp1 lpf;
+    uint8_t redLedPower;
+    SpO2Calculator spO2calculator;
+    
+    MAX30100 hrm;
+
+    void (*onBeatDetected)();
+    Timer t_Sample;
+    Timer t_CurrentBias;
+};
+#endif
\ No newline at end of file