Electrical · Controls & Automation
Closed-Loop Motor Speed Control (PID)
Intermediate 4 weeks 30-40 hours
Build motor controller with encoder feedback implementing advanced PID algorithm. Achieve stable speed under load. Show response curves and tuning results.
Major
Electrical
Focus area
Controls & Automation
Total hours
30-40 hours
What you'll need
- DC gear motor with encoder 12V for Arduino
- L298N dual H-bridge motor driver module
- Arduino Uno R3 ATmega328P microcontroller board
- 12V 2A DC power supply adapter
- DC electronic load module constant current tester
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Steps
- Wire the encoder motor, L298N driver, and Arduino, and power the motor from the 12V supply.
- Read the encoder pulses and convert them to motor speed in RPM.
- Run an open-loop test and record how speed drops when you add load with the electronic load module.
- Code a PID loop that adjusts the motor's PWM signal to hold a target speed.
- Tune the P, I, and D gains and record rise time, overshoot, and settling time for each setting.
- Plot your step response and load disturbance curves and document the final tuning for your portfolio.
What to photograph for your portfolio
- Speed response curves
- load disturbance test
- PID tuning
- real-time display
- settling time
Resume bullet starters
Copy one, then swap in your own numbers.
Designed and built a closed-loop motor speed control using Control systems, PID tuning, Arduino
Applied embedded programming and feedback systems to implement, test, and validate the system end-to-end
Quantified performance with [insert your result, such as accuracy, error reduction, response time, or load capacity] after iterative tuning
Skills you'll show off
Control systemsPID tuningArduinoembedded programmingfeedback systems