https://drive.google.com/drive/folders/17BOPjKsdqArQirTPjNIaXM87Vg7DWi_E?usp=sharing
Exercise 1: change horizontal position of ellipse
https://github.com/da3755-ui/intro-to-im/blob/4715fd118fa2091c8d727f6e3131c1cfebcfeccd/p5_to_ardunio_example1.ino
references:
https://stackoverflow.com/questions/1133770/how-can-i-convert-a-string-to-an-integer-in-javascript
Exercise 2: control led brightness from p5
https://github.com/da3755-ui/intro-to-im/blob/4274788ff7e0d80f2de29f5b4b86e653817c0fcc/P5_arduino_exercise2.ino
Exercise 3: bidirectional
https://github.com/da3755-ui/intro-to-im/blob/b749d30cee9ae91995d3ad61607f140d6e2135fd/P5_AND_ARDUINO_EX3.ino