Process

I focused on showing the light & humidity level for users, so I searched for the device that can do those jobs. Luckily, I already learned how to use a photoresistor in the second class, and then I happened to find out the soil moisture sensor in the Tech Spark. I googled for the soil moisture sensor and found out a guide on https://randomnerdtutorials.com/guide-for-soil-moisture-sensor-yl-69-or-hl-69-with-the-arduino/, just followed the step and removed some Arduino part and then it works successfully!! The challenging part is to remove the Arduino part and figure out how to apply it to my existed board.