Let’s build a full quadcopter flight controller using Arduino + MPU6050, with PID control for pitch, roll, and yaw. This setup will stabilize all three axes and drive 4 ESCs for brushless motors.
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System Overview
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Hardware Required
- Arduino Uno / Nano / Mega
- MPU6050 (6-axis IMU)
- 4× ESCs (PWM compatible)
- 4× Brushless motors (2 CW + 2 CCW)
- Power supply (LiPo + BEC for 5V to Arduino)
- Optional: RC receiver (for user control)
Wiring (Example for Arduino Uno)
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Code: Full 3-Axis PID Stabilization
Libraries Needed:
- Wire.h
- MPU6050 (by Jeff Rowberg)
- Servo.h
Arduino Code (Simplified)
What This Code Does:
- Stabilizes pitch and roll using gyro + accel data
- Runs PID loop for both axes
- Outputs adjusted PWM values to 4 ESCs
- Optional: yaw control can be added using gyroZ
Next Steps for Real Drone Flight:
- Tune PID gains carefully (start small, increase gradually)
- Integrate RC receiver for manual throttle/yaw/pitch/roll input
- Add arming/safety switch
- Implement altitude hold (barometer) or GPS navigation