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Robotics · Module 5 of 10

Control systems

Make robots move accurately with feedback.

📖 Key ideas

  1. Open-loop control acts without feedback.
  2. Closed-loop control uses sensor feedback to correct errors.
  3. PID controller: Proportional, Integral, Derivative.
  4. Tuning PID gains balances speed, overshoot and stability.
  5. Used in line followers, drones, balancing robots.
💡 Real-life example: PID control is driving a car: look at the gap to the lane (P), past drift (I), and how fast it changes (D).
Open loopControl without feedback
Closed loopControl with feedback
PIDProportional-Integral-Derivative controller
OvershootGoing past the target