Oh yes! It is an Arduino exercises time for week 3. Let’s play around with LEDs and buttons!!
Unfortunately, my LED was not working. Without knowing that from the beginning, I had to spend 3 hours doing CIRC-07 over and over. In my mind, I was constantly asking myself: “what the heck is wrong? what am I doing wrong here?” Once I changed my LED to Lassor’s LED, I finally realized that my stupid LED was broken from the beginning. Oh well, thanks Lassor for letting me use his LED for a couple hour.
Here is a “making better” part. I tried to make a shadow of red color, but you would barely see it.
Lastly, I borrowed another botton from Jiani and tried to make LED piano. Hope you had a fun!