![](https://i.ytimg.com/vi/pcvWUQLww6Y/maxresdefault.jpg)
Arduino For Beginner - Week 3 lesson 2 - Piezo and Speaker
This exercise will teach you about how you can use the Photo resistor and Piezo or Speaker to make a noise or sound.
Schematic
![](https://i.ytimg.com/vi/pcvWUQLww6Y/maxresdefault.jpg)
You can download the schematic and also the code from This link