max30102 代码
时间: 2023-08-27 19:05:16 浏览: 58
以下是使用Arduino和Max30102传感器进行心率和血氧测量的示例代码:
```C++
#include <Wire.h>
#include "MAX30105.h"
#include "heartRate.h"
MAX30105 particleSensor;
const byte RATE_SIZE = 4; //Increase this for more averaging. 4 is good.
byte rates[RATE_SIZE]; //Array of heart rates
byte rateSpot = 0;
long lastBeat = 0; //Time at which the last beat occurred
float beatsPerMinute;
int beatAvg;
void setup()
{
Serial.begin(115200); // Initialize serial communication at 115200 baud
Serial.println("Initializing...");
// Initialize MAX30105
if (!particleSensor.begin(Wire, I2C_SPEED_FAST)) {
Serial.println("MAX30105 was not found. Please check wiring/power.");
while (1);
}
particleSensor.setLEDMode(MAX30105_MODE_RED_PILOT);
particleSensor.setSamplingRate(MAX30105_SAMPLERATE_1000); //Sample rate of 1000 Hz
particleSensor.setPulseAmplitudeRed(0x0A); //Turn Red LED to low to indicate sensor is running
particleSensor.setup();
}
void loop()
{
long irValue = particleSensor.getIR(); //Reading IR value
if (checkForBeat(irValue) == true) {
//We sensed a beat!
long delta = millis() - lastBeat;
lastBeat = millis();
beatsPerMinute = 60 / (delta / 1000.0);
if (beatsPerMinute < 255 && beatsPerMinute > 20) {
rates[rateSpot++] = (byte)beatsPerMinute; //Store this reading in the array
rateSpot %= RATE_SIZE; //Wrap variable
//Take average of readings
beatAvg = 0;
for (byte x = 0 ; x < RATE_SIZE ; x++)
beatAvg += rates[x];
beatAvg /= RATE_SIZE;
}
}
Serial.print("IR=");
Serial.print(irValue);
Serial.print(", BPM=");
Serial.print(beatsPerMinute);
Serial.print(", Avg BPM=");
Serial.println(beatAvg);
}
```
这个示例代码使用了MAX30102传感器库和心率库heartRate.h。它从MAX30102传感器读取红外值并计算心率和平均心率。您需要在Arduino IDE中安装这些库,以便代码能够编译。
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