Aim:
To understand and perform basic calibration steps using a training drone or simulator.
Materials Needed:
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Training drone or QGroundControl simulator
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Computer or tablet
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Stable, flat surface
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Safety supervision (teacher or lab assistant)
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Calibration log sheet
Step-by-Step Process
Step 1: Review Sensor Roles
Before calibration, identify each main sensor:
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Gyroscope → keeps the drone level
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Accelerometer → detects movement and tilt
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Compass → shows the direction
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Barometer (optional) → helps measure height
Observe in the software dashboard how sensor values change when you move or tilt the drone.
Step 2: Open Calibration Menu
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Launch QGroundControl (or similar software).
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Connect your training drone or simulator.
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Go to Vehicle Setup → Sensors → Calibration.
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You’ll see options for Accelerometer, Gyroscope, and Compass.
Step 3: Calibrate the Gyroscope
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Place the drone on a flat surface.
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Select Gyroscope Calibration.
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Keep the drone completely still until calibration completes.
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The system sets “zero motion” as the reference point.
Purpose: Ensures the drone can correctly detect even the smallest tilts.
Step 4: Calibrate the Accelerometer
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Follow on-screen prompts to place the drone in multiple orientations — flat, on its sides, nose-up, and nose-down.
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Hold each position steady until the software confirms the calibration step.
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This helps the accelerometer understand gravity and movement directions.
Step 5: Calibrate the Compass
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Move the drone slowly in a figure-eight motion or rotate it on all axes as instructed.
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Keep away from metallic objects or magnetic fields (like metal tables or mobile phones).
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Once calibration completes, the compass will correctly identify north and direction.
Step 6: Save and Test
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Save the calibration data.
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Start a short simulation test flight or ground motor spin test.
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Observe stability — the drone should stay balanced and respond smoothly to controls.
Step 7: Record in Calibration Log
In your worksheet or logbook, note:
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Date of calibration
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Sensors calibrated
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Any issues observed before and after calibration
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Result (e.g., “Drift reduced, stable hover achieved”)
Reflection
When all parts of a drone are tuned and working together, the flight feels effortless.
Calibration is like tuning an instrument before a concert — it ensures harmony.
Just as a balanced drone flies smoother, a balanced pilot — one who checks, plans, and adjusts — makes better decisions in the air.