血样检测-如何使用-有什么中文资料面包板社区

项目采用MAX30102血氧及心率监视模块、Arduino UNO板、OLED显示器和蜂鸣器，搭建了一个简单的心率（BPM）测量仪。这里，BPM为每分钟的心跳数，正常人的数字为65-75之间，体育运动员的数字要低些；血氧饱和度(SaO2)对于正常然来说大概为95%。项目物料本项目所需材料包括： Max30102（×1）：这是项目的功能器件，是一款用于可穿戴设备的高灵敏脉冲式血样及心率传感器，具有不同版本，但是只要型号正确即可。 Arduino UNO（×1） OLED 128x32（×1）：低功耗显示器。 Buzzer （×1）：蜂鸣器面包板（×1）：方便组件安装和连接的线路板。连接线本项目所用代码来自Sparkfun_MAX3010x示例库，OLED和Buzzer代码根据 "HeartRate" 示例改进而来，这需要用户将手指放在传感器上。注意，如果将手指放在传感器上，就要保持安静，直到蜂鸣器的“哔哔”声与你的心率节拍同步，或者与OLED动画同步，这时可读出正确的BPM心率读数。本项目采用４次BPM读数的平均值，因此比较准确。让OLED显示bmp图像 OLED显示的是小的“心形”栅格图（bmp），一旦传感器检测到一次心跳，就立即切换为大点的“心形”栅格图并保持一会儿，这样屏幕就像心跳一样，一闪一闪的，并伴有蜂鸣器的“哔哔”声。选择希望看到的图走向的格式，如 .png\ .bmp\ .dib等。切记，本项目屏幕尺寸为128x32px，图像尺寸要小一些，为32x32px和24x21px。下载LCD助手并打开。可看到如下"数字" 这就是所谓的代码： display.drawBitmap(5, 5, logo2_bmp, 24, 21, WHITE); 其含义为： display.drawBitmap(Starting x pos, Starting y pos, Bitmap name, Width, Height, Color); 这段代码描述了两件事——“当检测到手指时做什么”，以及“捡到心跳时做什么”。以下是更新后的代码： MAX_BPM_OLED_Buzzer.inoArduino Modified from the SparkFun MAX3010x library /* This code works with MAX30102 + 128x32 OLED i2c + Buzzer and Arduino UNO * It's displays the Average BPM on the screen, with an animation and a buzzer sound * everytime a heart pulse is detected * It's a modified version of the HeartRate library example * Refer to www.surtrtech.com for more details or SurtrTech YouTube channel */ #include //OLED libraries #include #include #include "MAX30105.h" //MAX3010x library #include "heartRate.h" //Heart rate calculating algorithm MAX30105 particleSensor; const byte RATE_SIZE = 4; //Increase this for more averaging. 4 is good. byte rates ; //Array of heart rates byte rateSpot = 0; long lastBeat = 0; //Time at which the last beat occurred float beatsPerMinute; int beatAvg; #define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 32 // OLED display height, in pixels #define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin) Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); //Declaring the display name (display) static const unsigned char PROGMEM logo2_bmp = { 0x01, 0xF0, 0x0F, 0x80, 0x06, 0x1C, 0x38, 0x60, 0x18, 0x06, 0x60, 0x18, 0x10, 0x01, 0x80, 0x08, 0x20, 0x01, 0x80, 0x04, 0x40, 0x00, 0x00, 0x02, 0x40, 0x00, 0x00, 0x02, 0xC0, 0x00, 0x08, 0x03, 0x80, 0x00, 0x08, 0x01, 0x80, 0x00, 0x18, 0x01, 0x80, 0x00, 0x1C, 0x01, 0x80, 0x00, 0x14, 0x00, 0x80, 0x00, 0x14, 0x00, 0x80, 0x00, 0x14, 0x00, 0x40, 0x10, 0x12, 0x00, 0x40, 0x10, 0x12, 0x00, 0x7E, 0x1F, 0x23, 0xFE, 0x03, 0x31, 0xA0, 0x04, 0x01, 0xA0, 0xA0, 0x0C, 0x00, 0xA0, 0xA0, 0x08, 0x00, 0x60, 0xE0, 0x10, 0x00, 0x20, 0x60, 0x20, 0x06, 0x00, 0x40, 0x60, 0x03, 0x00, 0x40, 0xC0, 0x01, 0x80, 0x01, 0x80, 0x00, 0xC0, 0x03, 0x00, 0x00, 0x60, 0x06, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x08, 0x10, 0x00, 0x00, 0x06, 0x60, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x01, 0x80, 0x00 }; void setup() { display.begin(SSD1306_SWITCHCAPVCC, 0x3C); //Start the OLED display display.display(); delay(3000); // Initialize sensor particleSensor.begin(Wire, I2C_SPEED_FAST); //Use default I2C port, 400kHz speed particleSensor.setup(); //Configure sensor with default settings particleSensor.setPulseAmplitudeRed(0x0A); //Turn Red LED to low to indicate sensor is running } void loop() { long irValue = particleSensor.getIR(); //Reading the IR value it will permit us to know if there's a finger on the sensor or not //Also detecting a heartbeat 7000){ //If a finger is detected display.clearDisplay(); //Clear the display display.drawBitmap(5, 5, logo2_bmp, 24, 21, WHITE); //Draw the first bmp picture (little heart) display.setTextSize(2); //Near it display the average BPM you can display the BPM if you want display.setTextColor(WHITE); display.setCursor(50,0); display.println("BPM"); display.setCursor(50,18); display.println(beatAvg); display.display(); if (checkForBeat(irValue) == true) //If a heart beat is detected { display.clearDisplay(); //Clear the display display.drawBitmap(0, 0, logo3_bmp, 32, 32, WHITE); //Draw the second picture (bigger heart) display.setTextSize(2); //And still displays the average BPM display.setTextColor(WHITE); display.setCursor(50,0); display.println("BPM"); display.setCursor(50,18); display.println(beatAvg); display.display(); tone(3,1000); //And tone the buzzer for a 100ms you can reduce it it will be better delay(100); noTone(3); //Deactivate the buzzer to have the effect of a "bip" //We sensed a beat! long delta = millis() - lastBeat; //Measure duration between two beats lastBeat = millis(); beatsPerMinute = 60 / (delta / 1000.0); //Calculating the BPM if (beatsPerMinute 20) //To calculate the average we strore some values (4) then do some math to calculate the average { rates = (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 ; beatAvg /= RATE_SIZE; } } } if (irValue < 7000){ //If no finger is detected it inform the user and put the average BPM to 0 or it will be stored for the next measure beatAvg=0; display.clearDisplay(); display.setTextSize(1); display.setTextColor(WHITE); display.setCursor(30,5); display.println("Please Place "); display.setCursor(30,15); display.println("your finger "); display.display(); noTone(3); } }

标签: 血样检测