How do I design APIs for ABI stability for embedded systems?

// Example of designing an ABI stable API in C++
class Sensor {
public:
    // Constructor
    Sensor(int id) : sensorID(id) {}

    // Virtual function for reading value
    virtual float readValue() const = 0;
    
    // Function to get Sensor ID
    int getID() const { return sensorID; }

protected:
    int sensorID;
};

// Derived class for temperature sensor
class TemperatureSensor : public Sensor {
public:
    TemperatureSensor(int id) : Sensor(id) {}

    // Implementation of readValue
    float readValue() const override {
        // Logic to read temperature value
        return 25.0; // Placeholder value
    }
};

// Client code
void useSensor(const Sensor& sensor) {
    std::cout << "Sensor ID: " << sensor.getID() << ", Value: " << sensor.readValue() << std::endl;
}