The article describes a very useful project of a simple automatic day and night switch.
Automatic day night light switch circuit.
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 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.
The circuit will automatically switch on the ac lamp when night falls and the lamp will be automatically switched off after a preset time.
A cheap and simple automatic night light using few transistors and ne555 timer is shown here.
If your circuit is in dark the bulb automatically lights if your circuit is in light the bulb automatically switch to off.
At the daytime the relay 1 will become.
Now switch on the power supplies of the circuit both 6v dc and 230v ac.
The 4 simple light activated day night switch circuits explained here can all be used for controlling a load normally a 220v lamp in response to the varying levels of the surrounding ambient light.
We should make a 9 volts dc power supply and connects them together as figure 2 figure 2 block diagram and 9 volts dc regulation of daylight sensor switch circuit.
Automatic daylight sensor switch project then we apply the above circuit to make the automatic air pump.
Automatic night light circuit.
Learn how simple it is to build a 12 volt day night switch.
The circuit can perform both day night light dark sensing tasks.