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ESP8266_DOMOTICZ_BMP180/Modules.cpp

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+#include "Modules.h"
+
+Modules::Modules()
+{
+
+}
+
+void Modules::barometre() {
+  /* See Example: TypeA_WithDIPSwitches */
+Wire.begin(SDA, SCL);
+delay(200);
+  // init
+  bmp.init();
+  
+  // Initialize the sensor (it is important to get calibration values stored on the device).
+
+  if (bmp.hasValidID())
+    Serial.println("BMP180 init success");
+  else
+  {
+    // Oops, something went wrong, this is usually a connection problem,
+    // see the comments at the top of this sketch for the proper connections.
+
+    Serial.println("BMP180 init fail");
+    return; 
+  }
+  
+  delay(500);
+  Serial.println("Barometre: ");
+
+  temp = bmp.getTemperature();
+  pressure = bmp.getPressure();
+      // Print out the measurement:
+  Serial.print("temperature: ");
+  Serial.print(temp,2);
+  Serial.print(" deg C, ");
+  Serial.print((9.0/5.0) * temp + 32.0,2);
+  Serial.println(" deg F");
+  // Print out the measurement:
+  Serial.print("absolute pressure: ");
+  Serial.print(pressure, 2);
+  Serial.print(" mb, ");
+  Serial.print(pressure * 0.0295333727, 2);
+  Serial.println(" inHg");
+  
+//  // The pressure sensor returns abolute pressure, which varies with altitude.
+//  // To remove the effects of altitude, use the sealevel function and your current altitude.
+//  // This number is commonly used in weather reports.
+//  // Parameters: P = absolute pressure in mb, ALTITUDE = current altitude in m.
+//  // Result: pression = sea-level compensated pressure in mb
+//  
+  pression = sealevel(pressure,ALTITUDE); // we're at n meters 
+  Serial.print("relative (sea-level) pressure: ");
+  Serial.print(pression,2);
+  Serial.print(" mb, ");
+  pressionHg = pression*0.0295333727;
+  Serial.print(pressionHg,2);
+  Serial.println(" inHg");
+  
+  // On the other hand, if you want to determine your altitude from the pressure reading,
+  // use the altitude function along with a baseline pressure (sea-level or other).
+  // Parameters: P = absolute pressure in mb, p0 = baseline pressure in mb.
+  // Result: a = altitude in m.
+  
+  alt = altitude(pressure,pression);
+  Serial.print("computed altitude: ");
+  Serial.print(alt, 0);
+  Serial.print(" meters, ");
+  Serial.print(alt * 3.28084,0);
+  Serial.println(" feet");
+}
+
+
+void Modules::sleep(int sleepTime)
+{
+  Serial.print("Go to sleep ");
+  Serial.println(sleepTime);
+  delay(20);
+
+  ESP.deepSleep(sleepTime * 1000000L); 
+
+  //sleepWifi();
+  delay(200);
+}
+
+void Modules::readLuminosite()
+{
+    lum = analogRead(PIN_LUM);
+}
+
+double Modules::sealevel(double P, double A)
+// Given a pressure P (mb) taken at a specific altitude (meters),
+// return the equivalent pressure (mb) at sea level.
+// This produces pressure readings that can be used for weather measurements.
+{
+        return(P/pow(1-(A/44330.0),5.255));
+}
+
+
+double Modules::altitude(double P, double P0)
+// Given a pressure measurement P (mb) and the pressure at a baseline P0 (mb),
+// return altitude (meters) above baseline.
+{
+        return(44330.0*(1-pow(P/P0,1/5.255)));
+}