This project will use Arduino to send signal a Piezo Buzzer and make sound.
Step 1 – connect Arduino to Piezo Buzzer as per following graph
Step 2 – Download buzzer.ino sketch file and load it into Arduino, you will her buzzer sound.
Photoresistor,also called photocell, is a light sensor. Its resistor changes with light.
This project will use photoresistor to detect light and turn on/off an LED light.
Download photoresistor.ino sketch and load it into Arduino.