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Little cloud

a bedside lamp that is also an alarm

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Context:

I present to you today my end-of-semester project, completed as part of my engineering school curriculum. The project specifications focused on interactive art, allowing me to choose between creating an original object or recreating an iconic object from a film. I decided to create an entirely new object. My goal was to design a magnetic levitation lamp in the shape of a cloud, which I would have turned on with a push button. There would have been LEDs in the base and in the cloud. However, things did not go as planned...


1. First idea: the magnetic levitation lamp.

This technology has fascinated me since I was a child, and I have always wanted to understand and build a levitation module by myself.

1.1 First attempt: 

I bought a DIY KIT of a levitation module on Aliexpress for €25. After two weeks of waiting, I received it and spent my weekend soldering it. Once plugged in, nothing worked, not even the LEDs. After checking all the components, still nothing. After asking one of my professors to check my circuit, we still found nothing. It was probably a scam, but it cost me a week of time.

1.2 Second attempt: 

After a lot of research on the internet, I came across this video: 

The channel is professional, and it's not a dream seller because he has nothing to sell. He left a GERBER file link providing access to the PCB diagram. Not even knowing what it was at that time, I thought my problem was solved. But no, it was just the beginning of a very long adventure. From this GERBER file, I spent more than two weeks reverse engineering the electronic schematic. It was the first time I used software for electronics. In my case, I used EASYEDA. After these two weeks of design, I spent another week designing the PCB schematic, another discovery.

These steps took a lot of time because, being new to the field, I had to watch a lot of tutorials on YouTube and document myself on forums. Once the entire design was finished, I was able to order my parts via JLCPCB and LCSC. Initially, I planned to order my already assembled

electronic board, but due to the price, I had to take the electronic board and the components separately.

Ten days later, I received everything except the PCB stencil that I had taken to greatly facilitate the assembly. The delivery man gave me one out of the two packages (spoiler alert: it arrived a few days before the end of my project)...

Note to self: never remove SMD electronic components from their packaging at the risk of dropping them on the floor and spending an afternoon picking them up and sorting them...

During a week (my vacation week), I then learned to assemble SMD components on my PCB. It was very difficult given that I had a low-end soldering station. After burning all my soldering iron tips, I finally finished assembling my electronic board. Once plugged in, some components burned out because my soldering was not precise and there were shorts. 

1.3 Last attempt: 

After this failure that took me several weeks, I decided it wasn't over. I decided to make an investment that would always serve me: I bought a good soldering station. Then I assembled another electronic board. The soldering being of much higher quality, the board had no short circuits. However, once plugged in, nothing burned out, but nothing worked either, except for a few LEDs. At that point, losing motivation and running out of time, I decided to move on to plan B.

2. Second idea: the lamp with a screen and the game of life..

The goal of this plan B is simple and more easily achievable: to make a lamp in the shape of a cloud with a lightning bolt connecting the base and the cloud, all with a color game at the level of the LEDs. This lamp was to have a button to turn it on and a screen displaying the game of life in the background. The game of life is a cellular automaton invented by John Conway where cells on a grid evolve...

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3mf - 5.24 MB - 05/30/2024 at 08:41

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ino - 3.79 kB - 05/30/2024 at 08:41

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  • ALL Logs

    marceau.perrin05/30/2024 at 09:24 0 comments

    March 1, 2024

    Project commencement: plan and guidelines to follow

    Reflection step 1: creation of the PCB either pre-assembled or self-assembled, knowing there are about a hundred components

    March 3, 2024

    Begin reverse engineering the PCB without having prior knowledge on the subject

    March 9, 2024

    Completion of the electrical schematic of the PCB after ~10 hours

    March 13, 2024

    Finished component placement on the PCB

    March 17, 2024

    PCB and assembly completed, cost $33/2 PCBs

    Progress on the other electronic part of the project with the ESP32

    March 23, 2024

    PCB does not work after checking each component

    March 31, 2024

    Continue research and start thinking about a Plan B

    April 5, 2024

    Begin coding the ESP32: Game of Life + LED control

    April 19, 2024

    Resoldering the PCB because it was not done properly

    PCB resoldered

    PCB still does not work

    April 23, 2024

    ESP32 broken, need to find a new idea

    May 9, 2024

    3D model design

    May 23, 2024

    New code + acquisition of new components

    May 26, 2024

    Final 3D printing and prototyping, and final assembly

    May 29, 2024

    Presentation + filling out Hackaday


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