How to replace LED lamp beads on billboards
To make the words on the billboard glow at night, you can consider the following methods:
Use LED strips: install LEDs on the edge of the billboard or on the back of the fonts The light strips, when powered on, can emit bright light, making the words on the billboard more eye-catching at night.
Install LED neon lights: LED neon lights are lamps that can emit light of various colors and can flash and change color. Installing LED neon lights on billboards can make the words on the billboard more eye-catching at night and increase the visual effect of the billboard.
Use LED luminous characters: LED luminous characters are a billboard production technology that combines LED lights and characters. This kind of billboard can show different effects during the day and night. At night, LED luminous characters can emit bright light, making the characters on billboards more eye-catching.
Install floodlights: Floodlights are lamps that can project light onto billboards. Installing floodlights on the surface of the billboard or on the back of the fonts can make the words on the billboard more eye-catching at night.
It should be noted that in order to make the words on the billboard more eye-catching at night, factors such as the brightness, color and position of the lamps need to be considered. At the same time, it is also necessary to select appropriate lighting fixtures and installation methods based on the size and material of the billboard.
First introduce the materials used in the production (all materials are sold in Electronic City)
●Micro switch (2-3 yuan each)
● LED lights (colors: white, blue, green, red, light, yellow, automatic flashing lights, etc Except automatic flashing lights, all colors are available in large and small sizes) (ranging from 1 to 5 yuan )
●Battery (The silver-zinc button battery has two advantages: one is that it is easy to hide in the model, and the other is that one battery has a current of 3V
1. Making a switch
Steps 1: First select a suitable micro switch (of course the size is smaller than the model parts)
Step 2: Since the model glue is thicker, use a tool to thin the inside first, and open the gap at the appropriate position for convenience The button of the switch is exposed
Step 3: Connect the two wires to the positive and negative poles of the switch respectively
Step 4: Check whether the switch is correctly hidden in the components and try to see whether the components can be assembled correctly
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2.LED light connection
Step 1: Connect the two wires to the positive and negative poles of the LED respectively (usually long is positive and short is negative, but it is not a rule, so it is best to test it)
Step 2: Wrap the wires with tape to pre vent short circuits (it doesn’t matter what tape you use, the voltage is only 3V anyway)
Note: If used in humid conditions, for safety reasons, Please use electrical tape
3. Place the LED light
Choose a thin LED light for the gun head
Step 1: Cut off the joint of the gun head and open its position
Step 2: Since the tail of the LED lamp head is wider and the parts are not that wide, a groove must be carved in the part to hide the light
Note: How to hide the light depends on the parts It has its own space, so there are no rules, just adapt to your circumstances!
The space for the sight in the gun is larger, so I will use a large-head LED light to make it
Step 1: Same method, cut it out Connect the front head and open its position
Step 2: Bend the LED lamp foot into a shape that can be fixed on the component. Pay attention to the positive and negative poles to be separated, otherwise they will short circuit
Step 3: Connect the wires Good position, cut out the capsule in the middle for connection
Note: If you have little experience and cannot cut out the middle connection (because it is easier to cut), you can use two wires to connect separately
Step 4: Connect the wires, first test whether the positive and negative poles of the two LEDs are connected incorrectly (if they are connected incorrectly, the ends should be thin and the fruit will not stick)
4. Choose the location to place the battery
It is not easy to choose a suitable location because there is not much space. This time I chose a smaller size battery (CR1220), which is the kind used in the PGZeta Gundam head.
Step 1: Same as In the past, I cut off all the unused areas and chose the location according to the condition of the components
Step 2: Of course, try to see if the battery can fit into that space
5. Make the battery Box
Since the battery boxes available on the market are relatively large in size, we need to tailor-make them using model plastic sheets purchased from general model shops
Step 1: Put the plastic sheets Cut out a size larger than the battery, weigh it carefully and cut out multiple strips for pre paration
Step 2: There is no pre cise measuring tool, so stand up and see if the height is appropriate
Step 3: Use Use model glue and glue strips to build a concave character, and then attach the panel to make the shape in the middle of the picture (cut off the excess)
Step 4: Make a hole at the top and bottom for placement The purpose of the iron piece
The iron piece used this time is the buckle usually used when buying socks. This iron piece is very easy to use, easy to bend and not easy to break
Step 5: Bend the iron piece into Z-shape, easy to put into the pre viously pre pared position
Step 6: Make the front and rear sides into the shapes in the picture,
Note: Because the negative electrode of this battery is at the top and the positive electrode can be connected at the bottom Or on the left and right sides, but if placed on the left and right sides, there is a chance of contact with the negative electrode, so it is recommended to place it below
6. Connect the battery box
Step 1: Place the battery box in the pre -arranged The location and size are just right! (Actually, the size has been measured when making the battery box)
Step 2: Connect the wires, first connect the wires on the outer edge of the LED (connect the negative electrode to the battery The negative terminal of the box)
Note: In fact, you can also connect the positive terminal of the LED fruit side to the positive terminal of the battery box, as long as you do not connect the positive terminal to the negative terminal.
Step 3: Connect the battery to the positive terminal of the box Just connect it to one of the wires of the switch, because there are no positive and negative poles in the switch
Step 4: It’s a cliché, just test it after it’s connected!
Step 5: Twist the wire of the switch into S shape, because the gun handle is movable, the S shape can provide enough elasticity. Of course, it depends on the space of the parts. Step 6: Put the gun together and try to move the gun handle again. If it causes poor circuit contact, of course make corrections if so
7. Make the battery box cover
I believe everyone has some experience in making models and making a suitable battery box cover Come on!