Maybe now it less confusing

.vscode/settings.json

@@ -11,6 +11,14 @@
         "functional": "cpp",
         "tuple": "cpp",
         "type_traits": "cpp",
-        "utility": "cpp"
+        "utility": "cpp",
+        "hash_map": "cpp",
+        "deque": "cpp",
+        "list": "cpp",
+        "string": "cpp",
+        "unordered_map": "cpp",
+        "vector": "cpp",
+        "string_view": "cpp",
+        "initializer_list": "cpp"
     }
 }

include/data_source.h

@@ -1,16 +1,31 @@
 #include "Wire.h"
 #include "Arduino.h"
 #include "HardwareSerial.h"
+#include "vars.h"
 
 class DataSource {
 
     public:
-        float value;
+        DataSource();
+        DataSource(HardwareSerial, int);
+        DataSource(TwoWire);
+        DataSource(int, bool);
 
     public: 
         void update();
         void test();
+        void readSensor();
         void postProcess();
         int getValue();
 
+
+    public:
+        HardwareSerial* ser;
+        TwoWire* i2c;
+
+        int pin;
+        int protocol;
+        int value;
+        
+
 };

include/data_source_analog.h

@@ -1,11 +0,0 @@
-#include "data_source.h"
-
-class DataSourceAnalog : public DataSource{
-
-    public:
-        DataSourceAnalog(int);
-
-    public:
-        int pin;
-    
-};

include/data_source_bno055.h

@@ -1,15 +1,15 @@
-#include "data_source_i2c.h"
+#include "data_source.h"
 #include <Adafruit_BNO055.h>
 #include <Arduino.h>
 
-class DataSourceBN0O55 : public DataSourceI2C{
+class DataSourceBNO055 : public DataSource{
 
     public:
-        DataSourceBN0O55();
-        void update();
+        DataSourceBNO055();
+        void readSensor();
+        void postProcess();
         
     public:
-        int value;
         Adafruit_BNO055 bno;
 
 };

include/data_source_i2c.h

@@ -1,14 +0,0 @@
-#include "data_source.h"
-//i2c_t3
-
-class DataSourceI2C : public DataSource{
-
-    public:
-        DataSourceI2C();
-        DataSourceI2C(TwoWire);
-        void update();
-
-    public:
-        TwoWire i2c;
-    
-};

include/data_source_rxtx.h

@@ -1,13 +0,0 @@
-#include "data_source.h"
-
-class DataSourceRXTX : public DataSource{
-
-    public:
-        DataSourceRXTX(HardwareSerial);
-
-        void update();
-
-    public:
-        HardwareSerial ser;
-    
-};

include/vars.h

@@ -0,0 +1 @@
+#define DEBUG_PRINT Serial

src/data_source.cpp

@@ -1,5 +1,48 @@
 #include "data_source.h"
 
+DataSource::DataSource(void){
+    protocol = 0;
+}
+
+DataSource::DataSource(TwoWire i2c_){
+    
+    i2c = &(i2c_);
+    protocol = 1;
+    
+    i2c->begin();
+
+}
+
+DataSource::DataSource(HardwareSerial ser_, int baud){
+    ser = &(ser_);
+    protocol = 2;
+    
+    ser->begin(baud);
+}
+
+DataSource::DataSource(int pin_, bool analog){
+    pin = pin_;
+    if(analog) protocol = 3;
+    else protocol = 4;
+}
+
 int DataSource::getValue(){
     return value;
 }
+
+void DataSource::update(){
+    readSensor();
+    postProcess();
+}
+
+void DataSource::readSensor(){
+    if(protocol == 1) value = i2c->read();
+    else if(protocol == 2) while(ser->available() > 0) value = ser->read();
+    else if(protocol == 3) analogRead(pin);
+    else if(protocol == 4) digitalRead(pin);
+}
+
+void DataSource::test(){
+    update();
+    DEBUG_PRINT.println(value);
+}

src/data_source_bno055.cpp

@@ -1,15 +1,15 @@
 #include "data_source_bno055.h"
 
-DataSourceBN0O55::DataSourceBN0O55(){
+DataSourceBNO055::DataSourceBNO055(){
+    bno = Adafruit_BNO055();
     bno.begin(bno.OPERATION_MODE_IMUPLUS);  //Posizione impostata a P7 alle righe 105,107 di Adafruit_BNO55.cpp
     bno.setExtCrystalUse(true);
 }
 
-void DataSourceBN0O55::update(){
+void DataSourceBNO055::readSensor(){
  imu::Vector<3> euler = bno.getVector(Adafruit_BNO055::VECTOR_EULER);
 
     if (euler.x() != value) {
       value = euler.x();
     }
-  return;
 }

src/data_source_i2c.cpp

@@ -1,5 +0,0 @@
-#include "data_source_i2c.h"
-
-void DataSourceI2C::update(){
-    value = i2c.read();
-}

src/data_source_rxtx.cpp

@@ -1,7 +0,0 @@
-#include "data_source_rxtx.h"
-
-void DataSourceRXTX::update(){
-    while(ser.available() > 0) value = ser.read();
-
-    postProcess();
-}

src/main.cpp

@@ -1,9 +1,10 @@
 #include <Arduino.h>
+#include "vars.h"
 // #include <imu_class/imu.cpp>
 //cyao c:
 
 void setup() {
-  Serial.begin(9600);
+  DEBUG_PRINT.begin(9600);
 }
 
 void loop() {