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Lesson 37: Control a Servo With a Potentiometer in MicroPython

This tutorial covers controlling a servo motor using a potentiometer with the Raspberry Pi Pico W:

  • Servo Motor Control: Connect the SG90 servo to the Raspberry Pi Pico W, with ground, power (5V), and control on GPIO pin 15.

  • Wiring Setup: Connect the potentiometer to 3.3V, ground, and signal to GPIO pin 26.

  • PWM Basics: Use PWM at 50Hz to control the servo’s position.

  • Code Explanation: Set up PWM on GPIO 15 and convert potentiometer input to servo angles.

  • Practical Demonstration: Run the code to control the servo with the potentiometer, avoiding manual servo horn rotation.

  • Application Ideas: Use external power to control larger servos for advanced projects.

Video