Microcontroller Cube Earrings

In this project, I’ll show you how to create Microcontroller Cube Earrings by combining artistic flair with discarded components.

I had a few defective ATmega128 microcontrollers lying around, so I took six of them and assembled them into a cube. Inside, I installed a lithium-ion battery and a blinking RGB LED. By suspending the cube from a chain, I transformed it into a pair of earrings.

Whenever they are worn or the switch is flipped, they glow with red, green, and blue light. It’s a stunning fusion of art and electronics.

Electronic Parts For this Project you will need.........

1. Atmega128A Micro-controller (6 faulty Pieces)

2. Red/Green/Blue blink LED ( 2 Piece) :- https://www.amazon.in/Electronicspices-Light-Emitting-Diode-Flashing/dp/B07L13JTF4

3. 3.7V 60mAh Li-Po Rechargeable Battery ( 2 Piece) :- https://robu.in/product/40mah-pcm-protected-micro-li-po-battery/?gad_source=1&gad_campaignid=17427802559&gbraid=0AAAAADvLFWcUhZxIO2LRq04EY9tJDfM7c&gclid=CjwKCAjwhe3OBhABEiwA6392zKC-BfLgX0_BTgVYFLo2orNrQwmh37kAXZop-x10cHAekc6X6zkX_xoCODUQAvD_BwE

4. ON/OFF SMD Switch ( 2 Piece) :- https://robu.in/product/1-month-warranty-259/?gad_source=1&gad_campaignid=17427802703&gbraid=0AAAAADvLFWf5zGgWFoy8FUjtI1YjtSlXO&gclid=CjwKCAjwhe3OBhABEiwA6392zFB0Q3sIHxOq-_ZcS42JfZqIwsXROHD5i2dBDRO3uPkETQm0jInfpRoCdxkQAvD_BwE

5. Nokia Mobile Small Pin Charging Connector Port ( 2 Piece) :- https://www.daraz.pk/products/nokia-mobile-small-pin-charging-connector-port-n73-n70-1280-nokia-mobile-small-charging-pin-i196016289-s1921255451.html

6. TP4056 Battery Charging Protection Module (Type C) ( 1 Piece) :- https://robu.in/product/tp4056-1a-li-ion-lithium-battery-charging-module-with-current-protection-type-c/?gad_source=4&gad_campaignid=21296336107&gbraid=0AAAAADvLFWd6a8MlsW7LUYtNKRXNe1gYv&gclid=CjwKCAjwhe3OBhABEiwA6392zMaKg1qXtLLEzaJuHBX8ROwUqYSBUaPkif9RmYYufZqyDBi_ap6a6xoC018QAvD_BwE

7. 2.0mm DC Male Plug for Nokia N78 N73, and N82 ( 2 Piece) :- https://www.amazon.in/CARE-CASE%C2%AE-2-0mm-Small-Charger/dp/B0CLYC897K?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&psc=1&smid=A2PR1QOUMSBFUS

Jewellery Parts For this Project you will need.........

1. Silver chain (1 Piece)

2. Ear Tops ( 2 Piece)

3. Silver Paper or Silver Sticker

Tools needed to make it.........

1. Soldering Iron

2. Soldering wire

3. Soldering paste

4. Fevi quick

5. Tweezer

6. Wire cutter

7. Rectangular piece of wood

We are initiating this project by utilizing defective microcontrollers, from which we have prepared six individual units. This particular component, drawn from my personal electronics collection, is being repurposed today for a unique creative project.

Now, we take these six units and apply Fevi-Quick to the back of each piece.

Next, we affix a silver sheet onto the surface where the Fevi-Quick has been applied.

Note:- The silver sheet is being applied to serve as a reflector; its purpose is to reflect the RGB light, thereby enhancing the overall lighting effect.

To prepare the base for the project, we take a rectangular piece of wood. We then place two microcontrollers at one of its corners and solder them in place.

Similarly, we take another microcontroller, position it at the third corner, and solder it as well.

The project base is now ready; the next step is to fit the electronic components inside it.

A simple circuit has been utilized in this project.

This project employs four components. These components are:

1. Nokia Mobile Small-Pin Charging Connector Port

2. 3.7V 60mAh Li-Po Rechargeable Battery

3. Red/Green/Blue Blinking LED

4. ON/OFF SMD Switch

The battery is connected to the Nokia Connector Port, through which it will be charged.

The RGB LED is connected to the switch to supply power; when the switch is turned ON, the LED will begin to glow.

The complete circuit diagram is provided within the accompanying image.

We have constructed the base of the project by joining three microcontrollers; the resulting structure resembles a triangle and features a central opening.

We need to fit a charging connector into this opening in such a way that a 2.0mm DC male plug can be inserted into it from the outside. Using a mini drill machine, we enlarge the hole and then secure the charging connector in place using Fevi-Quick adhesive.

Next, we take a Li-Po battery and affix it to one side of the project's base using Fevi-Quick.

We also need to fit an RGB blinking LED inside this assembly. We bend both pins of the LED so that it fits snugly within the base. Using a pair of tweezers and a soldering iron, we secure the LED in position.

Note: Please refer to the circuit diagram to make the necessary connections for the DC male plug, the Li-Po battery, and the RGB blinking LED.

When the positive pin of the RGB blinking LED is connected to the battery, the LED lights up.

Now, using a soldering iron, we attach the fourth piece of the cube. At this stage, our cube remains open on two sides.

After connecting the 4th microcontroller, we installed the SMD switch. To mount the switch, we remove a few pins from one of the microcontrollers. We then fit the switch into the space created between the removed pins and solder it in place.

We connect one pin of the switch to the positive (+) pin of the LED and the other pin of the switch to the positive (+) terminal of the battery, and then solder these connections. When the switch is activated, the LED lights up.

Now, we fit the 5th microcontroller into the open space adjacent to the switch. We must also remove a few pins from this 5th microcontroller so that it can fit properly alongside the switch.

After integrating the 6th microcontroller into the cube, we end up with a fully enclosed cube. When the switch located on its side is toggled, the LED illuminates.

By following this entire process, we successfully construct another cube.

Using soldering paste and a soldering iron, we give the assembly a refined finish. Wherever excess solder has accumulated at the joints between two microcontrollers, we use the soldering iron to remove the excess and apply soldering paste to ensure a clean, smooth finish. This is a meticulous and time-consuming process.

Both cubes are ready to make earrings. First, we take two small wire rings and solder them to the top of both cubes.

Now, take a silver chain and divide it into two parts. Attach both the chain pieces to the cubes.

Now, take two earring tops and attach them to the other part of the chains attached to the cubes.

After doing this, our Microcontroller Cube Earrings Set is ready.

I hope you all enjoyed this unique idea of ​​mine.

I made a microcontroller cube a long time ago. But adding lights to it, using rechargeable batteries. Applying silver paper to the black surface to enhance the light effect. These are some of the changes that have made it look amazing.Adding a rechargeable Li-Po battery allows it to be used repeatedly.

This work has been completed with many hours of hard work, perfect work, skill and passion. This was an idea of ​​mine that has come to fruition. I hope you've enjoyed this tutorial and thanks for reading my Instructable!

See you on the next Instructable.