Blinky LED Soldering Halloween Decoration




Introduction: Blinky LED Soldering Halloween Decoration

Have you ever gone to the dollar store to get some discount Halloween decorations and realize that what you've bought is cheap and boring and want to spice them up? or do you just want to make some cheap Halloween decorations that will spook out your visitors? well i'm just the guy to go to for this. with just a few electrical parts you can spice up your cheap plastic disgrace with flashing lights.

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Step 1: Parts List

You will need:

-A Halloween decoration of your choice (make sure that the decoration is hollow on the inside, if it contains any electronics, such as lights, take them out)

-LED (4x) (Note: while the picture shows 2 LEDs we will be using 4 for this tutorial)

-Button cell power source (we will not be using the 9V power source that comes with the blinky LED Kit

-Blinky LED kit which should include:

-Circuit board

-Trimmer (2x) (square blue pieces)

-Transistor (2x) (black three prong)

-Capacitor (2x) (black cylinder)

-Male to Female Connectors (4x)

-Female to Female Connectors (2x)

Step 2: Tools Needed:


-Soldering iron

-Soldering iron cleaner

-Power Drill

-desoldering tool of your choice (in case you make mistakes

-hot glue gun w/ glue


Step 3: Step 1: Insert and Solder Resistors, Trimmers, Transistors, and Capacitors


1. Resistors: the polarity of the resistors does not matter, but make sure that the 10k resistors (Brown, Black, Orange) go into the R3 R4 slots and that the 1k resistors (brown, black, red) go into the R1 R2 slots, otherwise the lights will not function

2.Trimmer: the Two trimmers are exactly the same and three pronged so figuring out their orientation should not be a problem, insert and solder them into the RV1 and RV2 slots

3.Transistors: same with trimmers, insert and solder into the T1 and T2 slots

4.Capacitors: MAKE SURE that the polarity is correct or else the lights will not work

Step 4: Step 2: Insert and Solder Power Source

Take the button cell battery power source and solder it into the board. the board is marked with a "black" and a "red" slot so it shouldn't be hard to figure out where the black and red wires go.

Step 5: Step 3: Insert and Solder Male to Female Connectors

Insert and solder the male ends of the connectors into the LD1 and LD2 slots.

IMPORTANT: take note of which slots are negative and which are positive, for the sake of remembering i used the blue connectors for negative, and the purple ones for positive (pictured) and i suggest that you do the same.

Step 6: Step 4: Insert LEDs Into Connectors

Its very important that you get the polarity right with the LEDs or else it will not work.

Remember how i designated certain colors for polarity? thats important here. the negative end of one LED goes into the blue and the positive of the other goes into the purple slot, the other ends on both LEDs are connected by a female to female connector. Do this with both sides.

When you are done with connecting the lights. test it out and make sure that everything's working and in order.

Once thats all sorted out use hot glue to keep the LEDs in the connectors, soldering will not work in this case.

Step 7: Step 5: Drill Holes Into Halloween Decoration

should be self explanatory, pic places for 4 holes and drill them in, make sure the led's fit snug into the decoration.

Step 8: Step 6: Insert Lights and Tape Down Everything to the Inside of Decoration.

which holes which lights go into doesn't matter, you can decide for yourself. But it is important that you tape all of the electronics on the inside of the decorations so that none of it falls out.

When that is done put the button cell batteries into the power source, turn on, and enjoy.

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    3 years ago

    That's a great way to improve on it :)