The aim of this article to make a laser light security alarm and it can also be used as a home security system. The essence of this project is that anyone can make it at home to save their h... Read more
It is simple and cost-effective to make a simple ldr control circuit that a beginner can apply to electronics. Thanks to the people who contributed to the preparation of the circuit. Ci... Read more
When the ambient light is illuminated in the light sensitive circuit, the voltage generated on the LDR decreases. T2 switches to cut, T1 switches to transmission. Relay contacts ch... Read more
It works as a dark key with the LDR that you see in the diagram . The circuit consists of four resistors, one opamp, two potentiometers, one LDR, one switching transistor and one lamp. In th... Read more
the voltage on the LDR is reduced when the ambient light is bright in the light sensitive circuit. T2 is the cut, T1 is the transmission. The relay contacts change position. The voltage drop... Read more
When the environment becomes dark, the resistance of the LDR increases. An increase in resistance causes the voltage to rise on this element. The increase of the voltage in the LDR transmits... Read more
This circuit can be made to produce interesting and attractive light effects using just a cluster of red LEDs and one of the green LEDs. One effect is first alternating between red and green... Read more
It normally takes two transistors to build a blinker circuit (in order to make positive feedback possible). However, you can also use a photoresistor (LDR) that is illuminated by an LED. The... Read more
This circuit describes the principle of light dependent resistor (LDR) operation. LDR is actually a device whose sensitivity is based on the intensity of light that is falling on it.... Read more
