40-pin IO Development

Experiment 04 - PWM Output

  1. Hardware Connection

Connect a servo/motor/oscilloscope to IO33 (the S100 board supports two PWM outputs on IO32 and IO33).

  1. Software Execution

Enter the user home directory and run:

  1. cd user
  2. sudo python3 ./PWM_out.py

Terminal output:

You can observe: starting at 25% duty cycle, the duty cycle increases by 5% every 0.25 seconds. After reaching 100%, it decreases by 5% every 0.25 seconds.