Bring Your Own Moon

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About: Make it yourself if you cannot buy one!

We will not get lost in the night when the Moon light go along with you. But how about the day before new Moon? Why don't you bring your own Moon alone with you?

This instructables show how to make a 2.5 inches rechargeable Moon key ring go alone with you.

Step 1: Preparation

Battery

Any tiny Lipo with around 250-500 mAh is ok, this time I am using a 102025 Lipo battery.

Charge Board

Any Lipo charge board with micro USB socket should be ok.

LED

A 0.5 - 1W LED with voltage regulator.

Switch

A 8 mm X 8 mm X 8 mm power switch.

Key Ring

A key ring set with a ring that can screw into the switch hat.

Step 2: 3D Printing

Download the 3D model at Thingiverse and print it out:

https://www.thingiverse.com/thing:3009415

Step 3: Soldering Work

The connection is very simple, here is the connection summary:

Lipo +ve -> Charge Board Battery +ve pin
         -> Power Switch -> LED +ve pin
Lipo -ve -> Charge Board Battery -ve pin
         -> LED -ve pin

Step 4: Hot Glue Assembly

Use hot glue fix the components to the key ring hat and then stick the hat with the Moon body together.

Step 5: Key Ring Assembly

Screw the ring to the switch hat and then chain the key ring together.

Step 6: Charge the Battery

Plug the USB power to the Moon key ring and wait for fully charged.

Step 7: Bring Your Own Moon!

Its time to bring your own Moon alone with you!

Step 8: If You Do Not Have a 3D Printer

There are various website selling Moon Lamp product on the web, some are selling key ring size product:

https://www.lunarlamps.com/products/3d-printed-moo...

P.S. I will post a real product here if I get one.

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    11 Discussions

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    Jwsmiles

    Question 4 months ago

    Great project!
    Just wanted to know where I could buy the led and board from? I can’t seem to find one with the voltage Reg. Thanks

    5 answers
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    陳亮Jwsmiles

    Reply 4 months ago

    If you cannot find that board, you may try to add a ~1x ~ 2xx Ohm resistor in series.

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    Jwsmiles陳亮

    Reply 4 months ago

    Sorry I’m very new to all of this.
    What ohm resister is “2xx” and “1x” and where abouts in the circuit should I wire them in series. Is it between the positive battery wire and the LED?

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    陳亮Jwsmiles

    Reply 4 months ago

    "x" only means a wild card. If you have some resistors between around 10 - 300 Ohm, you can try one by one which brightness can fit you.

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    Jwsmiles陳亮

    Reply 4 months ago

    "Sorry I’m very new to all of this.
    What ohm resister is “2xx” and “1x” and where abouts in the circuit should I wire them in series. Is it between the positive battery wire and the LED?"

    sorry can you help with the question above

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    MicahKV

    10 months ago

    Awesome, I imagine this could work with a light sensor to use as a fixed outdoor light too. Very cool!

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    Salgalpal

    10 months ago on Step 7

    This would have been wonderful to have the last time I lost my keys outside at night. It took it several people I know a lot of time to find them in the grass. But not if I had had this little guy. A very clever idea

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    kd7eir

    10 months ago

    The link to the file on Thingiverse is bad - it's just points right back to the instructable.

    1 reply
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    陳亮kd7eir

    Reply 10 months ago

    Hi kd7eir, thanks for tell me that, I have updated the correct link.

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    paleseu

    11 months ago

    Awesome!