The article describes a very useful project of a simple automatic day and night switch.
Automatic day night light switch circuit.
The circuit of an automatic night light described in this article can be used to put off a light when day breaks and switch it on back when darkness sets in.
At the daytime the relay 1 will become.
It contains two automatic relay switches which will activate and deactivate according to the sunrise and sunset.
The entire circuit of this 12 volt day night switch can be built over a small piece of general pcb and the whole assembly along with the transformer may be housed inside a good looking abs plastic enclosure.
The circuit will automatically switch on the ac lamp when night falls and the lamp will be automatically switched off after a preset time.
The circuit can perform both day night light dark sensing tasks.
The working of this night light circuit very simple.
If your circuit is in dark the bulb automatically lights if your circuit is in light the bulb automatically switch to off.
Now switch on the power supplies of the circuit both 6v dc and 230v ac.
Since we have 12v ct 12v or 24vct transformer so set this circuit form.
Automatic night light circuit.
Automatic daylight sensor switch project then we apply the above circuit to make the automatic air pump.
Learn how simple it is to build a 12 volt day night switch.
A cheap and simple automatic night light using few transistors and ne555 timer is shown here.