In this Circuit I used a transistor 13003 ED, NE 555 timer, LDR, Buzzer and Lamp. This circuit is basically an application of LDR and NE 555 timer in our daily life. LDR is an electronic component which is known as Light Dependent Resistor. When there is darkness around the LDR then it offers large resistance and in the presence of light its resistance decreases. When an object intercepts light on LDR then resistance of LDR increases and it activates a relay switch which causes the Lamp and Buzzer in active mode.
You can make this circuit by using following components.
The Circuit Diagram is available at the end of the Video.
1.Breadboard/PCB
2.12V Relay Switch
3.Lamp
4. Buzzer
5.Connecting Wires
6.12 Volt Power Supply
7.LDR (Light Dependent Resistor)
In this Circuit I used a transistor 13003 ED, NE 555 timer, LDR, Buzzer and Lamp. This circuit is basically an application of LDR and NE 555 timer in our daily life. LDR is an electronic component which is known as Light Dependent Resistor. When there is darkness around the LDR then it offers large resistance and in the presence of light its resistance decreases. When an object intercepts light on LDR then resistance of LDR increases and it activates a relay switch which causes the Lamp and Buzzer in active mode.
You can make this circuit by using following components.
The Circuit Diagram is available at the end of the Video.
1.Breadboard/PCB
2.12V Relay Switch
3.Lamp
4. Buzzer
5.Connecting Wires
6.12 Volt Power Supply
7.LDR (Light Dependent Resistor)
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