The LDR drops its resistance when exposed to light, pulling the base voltage of the transistor low and keeping it turned off. When darkness falls, the LDR's resistance increases sharply. This allows voltage to pass through the potentiometer to the transistor's base, turning the transistor on and illuminating the LED.
A solderless breadboard allows you to test circuits without permanent connections, making it perfect for rapid prototyping. electronic enthusiast projects and circuits pdf
: A vast archive of downloadable project books focused entirely on discrete transistor and 555 timer hobby circuits. The LDR drops its resistance when exposed to