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Introduction

Here is my documentation for my final project

Planning and sketching

Project Draft Version 1.0

This is the very first draft for my final project , however after consultation with my lecturer I decided to spice it up a little

Project Draft Version 2.0

Materials need

3mm thickness Wood for laser cutting
1 RGB LED
4 220 Ohm resistors
One push button
1 1/2 breadboard 85mm x 55mm
At least 9 male to male jumper wires
At least 2 Female to male jumper wires
Arduino Uno
Arduino Uno connecter,used to connect to laptop for power supply

Project update 8/2/2020

The first component I model is the 3D printed base for the mood lamp

I first plan out the measurements , taking into consideration the dimension of the breadboard and thickness of the wood used for the laser cut box.

I plan out the various measurements inside Clip Studio Paint so that it would be very easy to model it out inside Fusion 360.

Project update 8/5/2020

For Embedded programing , I have a push button as the input and a RGB LED as the output.

Here is the schematic I have for this project

and here is the code I will be using

I got my inspiration from two projects that is published on Arduino project hub

RGB LED fading

Button control

I borrow the code from these two projects and tried to combine them

However I realise that there are mutiple problems with their code and could be optimised a lot more

Problems I found in both projects

The value of the resistor used are too high, 220 ohm should be used instead of 1k
The code did not put in the right variables
Some wires in the schematic are placed in the wrong position
Input should be Input-pullup instead of just Input

I manage to fix all these problems eventually and that is how I came up with the code above.

Code breakdown

To put it in very simple terms , here is what the code do

The code checks which pins are the outputs and which are the inputs
It constantly checks if the button is pressed
If the button is pressed, it adds 1 to a counter which changes what the RGB LED do
The counter will first be equal to zero , which will tell the LED to fade in and out looping different colours at a time.
When the button is pushed , the counter will now be equal to 1
The RGB LED will have a red , green , blue light when the counter is equal to 1 , 2 and 3 respectively
If the counter is equal to 3 and the button is pressed , it will reset itself back to equal 0.

Switch debounce problem

I put everything I have inside Tinkercad and it works as intended.

However when I connected everything in real life , the button counter counts more times than it should.

That is when I realise there is a switch debouncing problem.

Project update 7/9/2020

I did my laser cut box inside Fusion 360 in the same file as my 3d printed box

I also made my 3d printed box 20mm shorter due to the fact that cura told me it would take 6 hours to print.

Using illustrator

Now that I am finished modelling in Fusion 360 , I imported the sketch from Fusion 360 in DXF format and put it inside illustrator to combine it with a visual design.

For prototyping I used images from the game called "Hollow Knight" as a placeholder to test if a similarly thin pattern I had in mind for the final design will work.

Artist that created these designs

https://polyvolchant.tumblr.com/post/172421377337/hello-artists-of-hollow-knight-here-have-these

However , the pattern are far too thin and the 3mm plywood I used turned into timber.

So I did a vector engraving instead to test if it would fit the 3D printed box.

Everything went fits just fine , however now I need to come up with another design that does not have very thin patterns.

Second laser cut design

I created a design base on a character known as " The hunter " from Hollow knights.

Here is what he looks like in game

Here is what the pieces look like in illustrator

8/12/2020

I went back to school with fingers crossed that the patterns will turn out fine, because I was unable to make any changes if it does not. For context, my Laptop broke down and is under repair at a service center at the time.

Here is how it went