Sensor Calibration Class

Question

Problem: Sensor Calibration Class. Solve this hands-on electronics task on EWskills.

Accepted Answer

#include 
using namespace std;

class Sensor {
private:
    int rawValue;
    int offset;

public:
    Sensor() : rawValue(0), offset(0) {}

    void setRaw(int value) {
        rawValue = value;
    }

    void calibrate(int off) {
        offset = off;
    }

    int read() {
        return rawValue + offset;
    }
};

int main() {
    int raw, offset, newRaw;
    cin >> raw >> offset >> newRaw;

    Sensor s;
    s.setRaw(raw);
    s.calibrate(offset);
    s.setRaw(newRaw);

    cout << s.read();
    return 0;
}

Explanation & Logic Summary

The Sensor class encapsulates raw sensor data and calibration parameters.
Direct access to sensor state is prevented using private members.
Calibration logic is applied internally and exposed via the read() function.
This structure mirrors how firmware drivers protect and process hardware data.

Firmware Relevance & Real-World Context

Many embedded sensors require calibration offsets (ADC inputs, temperature sensors, IMUs).
Firmware drivers typically store raw measurements and expose corrected values.
This problem reinforces encapsulation, controlled access, and clean driver-style APIs used in embedded systems.

85. Sensor Calibration Class