From blinking an LED to buzzing a buzzer, just things with (+) and (-), no I2C and that sort of things. Can you create the most extreme code?
I ask because.... Yesterday, I was very tired, haven't slept for more than a day and I still stood up and finish some code that I've been trying to do right for a while. Next day, I woke up and saw it running on my arduino (still connected to my computer) and it was working how it should. So, I took a look at my code AND,,, I do not know that I did, I can barely remember, and it's all weird and full of unnecessary but critical lines. Looks like is going to take a while for me to understand what I did.