Automatic Night Light using BC547 || 4v LED Strip || LDR Circuit || Emergency Light
No worry, here is the automatic dark detected led light.
The circuit uses main IC called 555 timer ic as it is basically used in usable and monostable modes.
The circuit is very simple to build across IC 555
Red led is provided as a Standby indicator which makes you know LDR is detecting light.
And as the darkness in the room gets increased above certain limit, red led shuts off and 1W led is switched on by transistor.
Here I have used 1M ohm resistor. You can adjust this resistance from pin 2/6 of the ic to ground(-) in order to adjust sensitivity to darkness. Less the value of the resistor, more the sensitive in dark.
Make the container box to best fit this instructable in it.
Now you got the light which gets on automatically in the dark.
Automatic Night Light using BC547 || 4v LED Strip || LDR Circuit || Emergency Light
No worry, here is the automatic dark detected led light.
The circuit uses main IC called 555 timer ic as it is basically used in usable and monostable modes.
The circuit is very simple to build across IC 555
Red led is provided as a Standby indicator which makes you know LDR is detecting light.
And as the darkness in the room gets increased above certain limit, red led shuts off and 1W led is switched on by transistor.
Here I have used 1M ohm resistor. You can adjust this resistance from pin 2/6 of the ic to ground(-) in order to adjust sensitivity to darkness. Less the value of the resistor, more the sensitive in dark.
Make the container box to best fit this instructable in it.
Now you got the light which gets on automatically in the dark.
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