Now familiar with basic Python syntax and logic, the second lab introduced two simple hardware components, a button and an LED (both located directly on the Nucleo microcontroller board.

Using a callback interupt, our program needed to allow a user to cycle through various LED patterns (square, sine, and sawtooth waves). Topics covered in relation to this lab included pulse-width modulation (for LED control), writing non-blocking code, and working with interupts. For full documentation of the related file, see ledpwm.py.

Click here for the next lab, 305 Lab 0x03: Simon Says.