【Arduino】非接触温度センサ（GY-906）をつかってみた

#include <Arduino.h>
#include <Wire.h>
#include <Adafruit_MLX90614.h>

Adafruit_MLX90614 mlx = Adafruit_MLX90614();

void setup() {
  Serial.begin(9600);
  mlx.begin();  
}

void loop() {
  Serial.print("Ambient = "); Serial.print(mlx.readAmbientTempC()); 
  Serial.print("*C\tObject = "); Serial.print(mlx.readObjectTempC()); Serial.println("*C");
  // Serial.print("Ambient = "); Serial.print(mlx.readAmbientTempF()); 
  // Serial.print("*F\tObject = "); Serial.print(mlx.readObjectTempF()); Serial.println("*F");

  Serial.println();
  delay(1000);
}

#include <M5StickCPlus.h>
#include <Adafruit_MLX90614.h>
#include <Wire.h>
#include "Filter.h"

Adafruit_MLX90614 mlx = Adafruit_MLX90614();
Filter filter = Filter();

#define BUTTON_A 37

bool enableMesure = true;

void measureTemp() {
    Serial.println("Starting measure temp...");
    size_t s_len = 100;
    float s[s_len];

    float ambientTemp = mlx.readAmbientTempC();

    for (size_t i = 0; i < s_len; i++) {
        s[i] = mlx.readObjectTempC();
    }

    float objectTemp = filter.medianFilter(s, s_len);

    displayLCD(ambientTemp, objectTemp);
    playBeep();
}

void setup() {
    M5.begin();

    while(!setCpuFrequencyMhz(10)){ // ←必須（CPU: 240MHz, 160, 80, 40, 20, 10）
        ;
    }
    Wire.begin(0, 26); // ←必須（G0->SDA, G26->SCL）
    mlx.begin(); 

    M5.Axp.ScreenBreath(10);
    M5.Lcd.fillScreen(WHITE);
    M5.Lcd.setTextColor(BLACK);
    M5.Lcd.setTextSize(2);
    M5.Lcd.setCursor(5, 10);
    M5.Lcd.printf("Press the A button to start and end measurement.");

}

void loop(){
    M5.update();
    if(M5.BtnA.wasPressed()){
        Serial.println("M5.BtnA.wasPressed()");

        if (enableMesure) {
            enableMesure = false;
            measureTemp();
            enableMesure = true;
        }
    }
}

void displayLCD(float amb, float obj) {
    M5.Lcd.fillScreen(WHITE);

    M5.Lcd.setTextSize(1);
    M5.Lcd.setCursor(5, 10);
    M5.Lcd.printf("Ambient temperature", amb);

    M5.Lcd.setTextSize(3);
    M5.Lcd.setCursor(5, 25);
    M5.Lcd.printf("%.1f", amb);

    M5.Lcd.setTextSize(1);
    M5.Lcd.setCursor(5, 70);
    M5.Lcd.printf("Object temperature");

    M5.Lcd.setTextSize(5);
    M5.Lcd.setCursor(5, 85);
    M5.Lcd.printf("%.1f", obj);

}

void playBeep() {
    M5.Beep.tone(3000);
    delay(50);
    M5.Beep.mute();
    delay(50);
    M5.Beep.tone(3000);
    delay(50);
    M5.Beep.mute();
    delay(50);
}

#ifndef Filter_h
#define Filter_h
#include <Arduino.h>

class Filter {
    public:
        Filter();
        float medianFilter(float s[], size_t len);
};
#endif

#include "Filter.h"

Filter::Filter() {
}

float Filter::medianFilter(float s[], size_t len) {
    for (size_t i=0; i<len; ++i) {
        for (size_t j=i+1; j<len; ++j) {
            if (s[i] > s[j]) {
                float tmp =  s[i];
                s[i] = s[j];
                s[j] = tmp;
            }
        }
    }

    int m = len / 2;
    return s[m];
}

void hoge(int array[]) {
  for (size_t i = 0; i < sizeof(array) / sizeof(array[0]); ++i) {
     doSomething();
   }
}

void hoge(int array[], size_t len) {
    for (size_t i = 0; i < len; i++) {
     doSomething();
  }
}