All modules and core of the app was created

Sensors/Barometer.hpp

@@ -1,5 +1,7 @@
 #include "GyverBME280.h"
 
+typedef std::function<void()> OnMeasuringFinishedCb;
+
 class Barometer {
   public:
     Barometer(GyverBME280 *bme) {
@@ -28,7 +30,7 @@ class Barometer {
     }
 
     void measureBaseAltitudeAsync(void) {
-        _isStartCalibration = true;
+        _isCalibration = true;
     }
 
     float altitude() /* [cm] */ {
@@ -39,14 +41,21 @@ class Barometer {
         return altitude() - _startedAltitude;
     }
 
+    void onMeasuaringHeightFinished(OnMeasuringFinishedCb callback) {
+        _measuaringHeightFinishedCb = callback;
+    }
+
     void tick() {
-        if (_isStartCalibration) {
-            if (_isStartCalibration && millis() - _calibrationTimer >= _calibrationIterationDelay) {
+        if (_isCalibration) {
+            if (millis() - _calibrationTimer >= _calibrationIterationDelay) {
                 _startedAltitude += altitude();
             }
             if (++_calibrationIterationsCounter >= _calibrationIterationsCount) {
                 _startedAltitude /= _calibrationIterationsCount;
-                _isStartCalibration = false;
+                _isCalibration = false;
+                if (_measuaringHeightFinishedCb) {
+                    _measuaringHeightFinishedCb();
+                }
             }
         }
     }
@@ -54,9 +63,10 @@ class Barometer {
   private:
     GyverBME280 *_bme;
     float _startedAltitude = 0;
-    bool _isStartCalibration = false;
-    int _calibrationTimer;
+    bool _isCalibration = false;
+    uint32_t _calibrationTimer;
     int _calibrationIterationsCounter = 0;
+    OnMeasuringFinishedCb _measuaringHeightFinishedCb = nullptr;
     static constexpr int _calibrationIterationsCount = 1500;
     static constexpr int _calibrationIterationDelay = 1;  // [ms]
 };