The Complete Beginners Guide to Arduino - 2021 - Light Detection with an LDR

The video tutorial explains the concept of a light-dependent resistor (LDR) and its application in a voltage divider circuit. It demonstrates how to measure resistance using a multimeter under different lighting conditions and how to set up an Arduino to read and convert these analog signals into voltage values. The tutorial also covers using the Arduino IDE's serial monitor and plotter for data visualization and discusses various practical applications of LDRs, such as alarms and light detection systems.

How do you convert the analog reading from the LDR to a voltage value?

What is the purpose of the serial monitor in the Arduino IDE?

What are some other analog devices that can be used with Arduino?

Discuss the potential applications of LDRs in real-world scenarios.