Sensor module for temperature, air pressure, and humidity

Dependencies:   DHT11 LM75B mpl115a2

Dependents:   WeatherPredictor

SensorModule.cpp

Committer:
yukari_hinata
Date:
2015-02-15
Revision:
1:3d6d2ff7ff8a
Parent:
0:98946a466ef8
Child:
2:d1f55b26ccac

File content as of revision 1:3d6d2ff7ff8a:

#include "SensorModule.hpp"

// コンストラクタ
SensorModule::SensorModule(int n_sample)
{
    // サンプリング回数, インスタンス初期化
    this->n_sample = n_sample;
    this->temperture_sensor = new AnalogIn(p15);
    this->humidity_sensor   = new DHT11(p11);
    this->pressure_i2c      = new I2C(p9, p10);
    this->pressure_sensor   = new MPL115A2(pressure_i2c);
    pressure_sensor->begin();

}

// デストラクタ
SensorModule::~SensorModule(void)
{
    delete temperture_sensor;
    delete humidity_sensor;
    delete pressure_i2c;
    delete pressure_sensor;
}

// 全センサーからn_sample回読み出し, 平均値で更新する.
void SensorModule::read_all_sensor(void)
{
    register float sum_temp = 0, sum_humid = 0, sum_pres = 0;
    // float sum_temp2 = 0; 気圧センサ, 実は温度も測れる

    pressure_sensor->ReadSensor();
    
    do {
        // AnalogInを用いる場合は,n_samle回センサーから読み出す.
        for (int count = 0; count < n_sample; count++ ) {
            // LM61CIZの温度読み取り
            sum_temp  += (temperture_sensor->read()-(0.6/3.3))/(0.01/3.3);
            // MPL115A2の気圧読み取り
            pressure_sensor->ReadSensor();
            sum_pres  += pressure_sensor->GetPressure();
            // sum_temp2 += pressure_sensor->GetTemperature();
            wait(0.1);
        }
        // 異常値ならばやり直し(たま〜に異常値をとる...)
    } while( fabsf(new_temperture - (sum_temp / n_sample)) > 40 );

    new_temperture = sum_temp / n_sample;
    new_pressure   = sum_pres / n_sample;
    
    // printf("LM61CIZ : %f vs. MPL115A2 : %f \r\n", sum_temp / n_sample, sum_temp2 / n_sample);

    // 更新.
    
    // DHT11の湿度読み取り
    if (humidity_sensor->readData() != DHT11::OK) {
        fprintf( stderr, "Error in Humidity Sensor \r\n");
    } else {
        new_humidity = float(humidity_sensor->readHumidity());
    }

}