Smart light – working with digital sensor

After writing our first C/C++ program for Raspberry Pi, we can now write a program that will take input from an LDR sensor and turn the LED on or off. For this project, you will need the following hardware components:

• 1 LDR sensor module
• 1 LED
• Raspberry Pi
• 5 female-to-female connecting wires

First, let's explore how the LDR sensor works.