Lunar night light

A moon night light is a moon-shaped wall light that turns on automatically when it gets dark. The automatic switching circuit is built on only two transistors.
A night light in the shape of a moon is very original, beautiful and unusual. The effect this lamp produces is simply mesmerizing.
Lunar night light

Lunar night light

Materials for the night light


For the moon night lantern you will need:

Lunar night light

Transistor night light circuit


In this circuit, I used two transistors to turn the LED strip on and off. The first transistor reacts to changes in light and triggers the second transistor, which responds by turning the LED strip on and off.
This is a compound transistor of two, only turned on in such a way as to provide better amplification of the electrical signal from the photosensor.
Lunar night light

A 1M resistor can be used to adjust the sensitivity and threshold of the backlight.

Manufacturing


First you need to prepare everything in advance. Cut a circle out of plywood, cut out the base in the shape of the letter “O”, print out a drawing of the moon. If everything is ready, let's start.
First of all, we drill two holes in the base: on one side, on the top - for mounting the lamp on the wall and on the bottom - in order to pass the wire.
Lunar night light

Lunar night light

Lunar night light

Lunar night light

Then, glue the base to the plywood circle with PVA wood glue. Surfaces must be clean and smooth, otherwise it may not stick well. The design is not complicated.
Lunar night light

Lunar night light

Lunar night light

Leave for a short time until everything is dry. Once everything has dried along the oval, measure out the LED strip. We cut off the excess in the place where it is indicated, otherwise not all LEDs will burn.
Lunar night light

Lunar night light

Solder the wires to the LED strip.
Lunar night light

Glue the moon drawing to the circle. We glue it carefully and iron it. We bend the edges and form a skirt. Let's wait until the glue dries.
Lunar night light

Lunar night light

Lunar night light

Lunar night light

Lunar night light

Drill a hole for the photocell. It is advisable to choose the place where this hole will be combined with the moon pattern.
Lunar night light

Lunar night light

Remove the protective layer from the LED strip and glue the strip along the oval. We pass the wires into the hole from below.
Lunar night light

Lunar night light

We pass the power wires from the source into the same hole.
Lunar night light

We secure it with a nylon tie to prevent it from flying out.
Lunar night light

We assemble the circuit on a breadboard.
Lunar night light

How transistors are connected.
Lunar night light

Lunar night light

We solder the wires to the photodiode and insulate them with heat shrink tubing.
Lunar night light

Solder the power wires to the board.
Lunar night light

I attached the board with the circuit to clothing Velcro so that it could be removed at any time.
Lunar night light

We insert the photosensor into the hole and fill it with hot terminals.
Lunar night light

Lunar night light

Our lunar night light is ready. We hang it on the wall and check it.
Lunar night light

Lunar night light

It turned out very beautiful and creative. The power supply is switching, in idle mode, when the lamp is not turned off, it consumes practically no energy, so you don’t have to worry about it.
Original article in English
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Comments (1)
  1. feelloff
    #1 feelloff Guests 30 October 2017 14:58
    2
    This is a cool lamp
    Batman