Final Project Idea

The idea is related to art, technology and music and how they can be mixed together to give a unique enjoyable experience. It also represents the magic of light and how the light and darkness can change the whole scene. It is a lightining unit that has 4 photos and these photos will only appear when they are lit up.The whole unit will be synchronized with music beats which will make the experience more interesting.

What will it do ?

The user will be able to control the lightining unit to turn on or it off. Using an audio siginal detection circuit that is put iside the unit, the lighting unit will be able to control 4 LEDs' sets fixed behind four photos to make photos appear and dissappear in a synched way with the music beats.

Who's done what beforehand?

Making photos appear only when they lit up is called lithophane and it is pretty old since 1820 (Lithophane history).Now adays people has figured out a way to do this with 3D printing or CNC milling by making the material is very dense in some parts so it doesn't allow light to pass and very light in other parts to allow light to pass. The difference in the amount of light passing through the image makes it visible. Cura software for 3D printing added the option that you can import an image and it will convert it to 3D printed one.

There are also a new webplatform Image to lithophane which gives more options on creating curved, clynderical and many shapes of 3D images.

Also I found people making led bulbs to the images to lit it up.

What will you design?

I'm going to design a good cube enclosure to hold four photos and a system that can capture the audio signals and use it to control the LEDs behind these photos.Check the Final project page.

What materials and components will be used?

Materials	Cost($)	Source
Wood sheets	1.5	From local supplier
3D printing Filament	25 / 1kg roll	Any filament supplier
6 x 10 Kohm resistor	0.18	Digi-Key (also should be in your inventory)
4 x 100 ohm resistor	0.18	Digi-Key (also should be in your inventory)
1 x 2.2 K ohm resistance	0.25	Al-nekhely for electronics>
0 ohm resistance	0.1	Digi-Key (also should be in your inventory)
1 x 10k ohm variable resistance	0.5	Al-nekhely for electronics
3 x 10 uF capacitors	1	Digi-Key (also should be in your inventory)
6 x 1 uF capacitors	2.5	Digi-Key (also should be in your inventory)
5 x 1 pF capacitors	3.5	Digi-Key (also should be in your inventory)
2 x ATTINY44	2.5	Digi-Key (also should be in your inventory)
2 x ISP pinheaders	3.5	Digi-Key (also should be in your inventory)
(2x1) pinheaders	5	Digi-Key (also should be in your inventory)
2 x 20MHZ oscillator	2	Digi-Key (also should be in your inventory)
2 x 0.1 uF capacitors	2.5	Digi-Key (also should be in your inventory)
1 x LM4861 Amplifier	3	Digi-Key (also should be in your inventory)
5V voltage regulator	0.6	Digi-Key (also should be in your inventory)
Electret mic	0.5	Ram electronics
4x N-channel NDS355AN mosfet transistor	6	Digi-Key (also should be in your inventory)
20 x 3mm white LED	0.25	Ram electronics
1x 9V battery	1.5	Ram electronics
Total Cost	63

What parts and systems will be made

The parts of the system are:

• The enclousre
• The 3D printed photos
• The 3D printed photos
• The audio signal detection circuit
• The LEDs circuit
• The code

What processes will be used?

The processes I used are:

• Drafting and ideation
• Trying the concept and prototyping
• 2D Desing
• Laser cutting
• 3D printing
• circuit designing
• Electronics production
• PCB soldering and testing
• Embedded programming
• Communication
• Integerating all the above together

What is the schedule and what tasks need to be complete?

As I'm starting the final project a little bit late so I have to finish it as soon as possible and dedicate almost 100% of my time that's why I'm not mentioning a specific dates.

no	Task	Progress	link
1	Choose pictures to be 3D printed and print it.	30%	Experminting the cocept has been made through trials in wild card week.
2	Design an enclousre box to hold the 3D printed photos, The LEDs and all the control circuits.	0%
3	Fabricate the enclousre.	0%
4	Design a circuit that can capture the audio signals through an electret mic.	100%	Has been completely done at Input devices week.
5	Fabricate and test the audio signal circuit.	100%	Has been completely done at Input devices week.
6	Design a circuit that can control 4 LEDs' units( Transistors bridge circuit+ LEDs circuits).	100%	Has been completely done at Output devices week.
7	Fabricate and test the transistors bridge circuit	100%	Has been completely done at Output devices week.
8	Fabricate and test the LEDs units circuits.	100%	Has been completely done at Output devices week.
9	Communicate between the audio signal circuit and the transistors bridge circuit	50%	Test communication has been made at Networking and communication week.
10	Write the final programming code	20 %	Reading the audio signals has been successfuly made at Input devices week and controlling thr LEDs has been successfully made at Output devices week.
11	Integerate all of the above together.	0 %
12	Prepare a video and one slide.	0 %

What questions need to be answered?

• How far could the sound still being detected?
• will the distance affect the operation of the lightning unit?
• Could the sound be detected from diffrent angles?

Taking in consideration that the projects is experimental.

How it will be evaluated?

• The project demonistrates the capabilites of 2D and 3D modeling through the enclosure and the 3D printed photos.
• The project demonstrated the capabilites of deigning and manfacturing PCBs.
• The project integrate multiple digital fabrication processes.

---

Contacts & Refrences