feat: 全量同步 254 个常用的 Arduino 扩展库文件

arduino-libs/arduino-cli/libraries/SparkFun_MAX3010x_Sensor/src/heartRate.h

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+/*
+ Optical Heart Rate Detection (PBA Algorithm)
+ By: Nathan Seidle
+ SparkFun Electronics
+ Date: October 2nd, 2016
+ 
+ Given a series of IR samples from the MAX30105 we discern when a heart beat is occurring
+
+ Let's have a brief chat about what this code does. We're going to try to detect
+ heart-rate optically. This is tricky and prone to give false readings. We really don't
+ want to get anyone hurt so use this code only as an example of how to process optical
+ data. Build fun stuff with our MAX30105 breakout board but don't use it for actual
+ medical diagnosis.
+
+ Excellent background on optical heart rate detection:
+ http://www.ti.com/lit/an/slaa655/slaa655.pdf
+
+ Good reading:
+ http://www.techforfuture.nl/fjc_documents/mitrabaratchi-measuringheartratewithopticalsensor.pdf
+ https://fruct.org/publications/fruct13/files/Lau.pdf
+
+ This is an implementation of Maxim's PBA (Penpheral Beat Amplitude) algorithm. It's been 
+ converted to work within the Arduino framework.
+*/
+
+/* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a
+* copy of this software and associated documentation files (the "Software"),
+* to deal in the Software without restriction, including without limitation
+* the rights to use, copy, modify, merge, publish, distribute, sublicense,
+* and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+* OTHER DEALINGS IN THE SOFTWARE.
+*
+* Except as contained in this notice, the name of Maxim Integrated
+* Products, Inc. shall not be used except as stated in the Maxim Integrated
+* Products, Inc. Branding Policy.
+*
+* The mere transfer of this software does not imply any licenses
+* of trade secrets, proprietary technology, copyrights, patents,
+* trademarks, maskwork rights, or any other form of intellectual
+* property whatsoever. Maxim Integrated Products, Inc. retains all
+* ownership rights.
+* 
+*/
+
+#if (ARDUINO >= 100)
+ #include "Arduino.h"
+#else
+ #include "WProgram.h"
+#endif
+
+bool checkForBeat(int32_t sample);
+int16_t averageDCEstimator(int32_t *p, uint16_t x);
+int16_t lowPassFIRFilter(int16_t din);
+int32_t mul16(int16_t x, int16_t y);