Simple Automatic Night Light using LDR , bc547 transistor

#led
#ldrsensor
#emergencylight
#emergencylamp
#emergencylightkaisebanaye

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In this video I'm showing how to make an Automatic night light circuit using ldr darkness sensor and bc547 transistor. This emergency automatic night light can be used as street light, garden light and also as room light and can be powered with 5v USB, Simply using a mobile charger.

Part List_______

BC547 NPN Transistor
LDR Photo Resistor
4.7k Resistor
4v led strip

LINKS______
👉 Circuit Diagram Download Link

[Funjaunts]

I really like the way you comment on what you are doing at each step although for a beginner like me watching your channel it would be extremely helpful if you commented on why you were using the chosen resistor strengths with how many number of volts on lights etc. You have a new subscriber 🙂

[Himagiri-jbmm]

ఇట్స్ రియల్లీ వర్క్ అమేజింగ్ యువర్ ఐడియాస్

[PixelRelive]

although you recommend on no PCB, but can I still solder it using PCB??? please respond

[joseramos]

Thanks God you speak English
Do proyects to be able to work with 12v to all people in america
Thanks

[tibib]

Hola! Functiona con 2N2222 ? O cual otro puedo usar si no tengo el BC547 ? Lo quero usar con un led de 1w

[tibib]

Hola ! Functiona con led 3, 2V 1w si lo alimento con bateria 3, 3v lifepo4 ?

[PritishRajPal]

👍 👍 Nice circuit, Can i use 3.7 volt lithium ion battery in this circuit?

[tibib]

Hola ! Con bateria 3.3v y led de 3, 2v 1w functiona egual ?

[placidusdsilva]

Nice circuit, can you share similar working for 12v led strip

[Vishu]

Hello I need help regarding my project ( I am unable operate this system if I am using charger kit at place of battery or power bank

[E_STI]

How would I be able to change the function to turn on with light off and turn off with light off?

[Wfshorts]

Bhai BC547 nahi HAI to BC548 ya 49 USE KAR sakate hai

[antrofantro]

why not using just the LED and LDR for such project? I think the LDR can handle 12v 50mA so I think there is no need or transistor and resistor.

[Science-Class-]

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