Questions & Answers

But behind this simplicity, there is a huge challenge: to design a device that is not only functional, but also attractive, intuitive and accessible to everyone. Ohmmie 🧡 is not just a technical project, but a proposal to transform stress into laughter, reminding us that sometimes shouting is the best therapy. Get ready to shout, relax and, above all, have fun! 😊

What will it do?

Ohmmie 🧡 is my final project, and is a trainer that taught us to breathe with different relaxing rhythms, but like everything in this life, to survive Ohmmy has several jobs. Now he will help us to relax but with more liberating techniques.

Ohmmie will help you get rid of the stress of the day by playing screaming. For this the device will have two microphones, microphone a and microphone b, which capture the scream of each of the players, user a and user b, it receives and senses the decibels of the two screams, it is interpreted that user has the most decibels, the led lights will turn magenta if user A screams louder or cyan if user B screams louder. The winner is the one who screams louder and Ohmmy will tell you who did it. The end result is that everyone will be very relaxed and liberating laughter will fill the atmosphere.

Who's done what beforehand?

In the course I have not been able to find a project that realized the same functionality as is, but two similar projects that are based on people's screams.

• Alessandro Patrizi made the ScreaMask, his final project, which was an interactive mask that has the functions of voice reduction and decibel measurement.
• Earlier, Kelly Dobson made Scream Body, also his final project, which was a device that allowed you to scream in public spaces and save your screams to release them later, a very cool project.

What will you design?

• The case : Based upon the user friendly concept ideas, design should consider soft material, organic shapes, color, buttons display and color lights (backlit)
• The lighting system software A visual lighting system that performs color changes between magenta or cyan, in order to communicate who made the loudest scream.
• The sensors core This is the most difficult part to define, but the system will have two microphones for two players (maybe in version 2, it can be more).

What materials and components will be used?

• For the case structure I want to use maybe TPU, PLA or TPE, translucent in some parts.Microporous material
• The electronic board with Attiny1614
• 2 x Sound sensors KY-037
• Transistor TIP 120
• Mosfet P-CH -30V 1.1A 3-SSOT
• RGB LED strip illumination
• 12 volt power supply (2 Amp)
• Resistance 330ohm - 1/4w
• Wires

Where will it come from?

For this project I will design and 3d print the parts, also I will use laser cutting for the cone parts:

• The case: I have filaments at home and will use them for the device.
• The cones for shouting : I have recycled fabrics, plus some microporous materials that I will gather to make the cones.

The rest of the components:

• The electronic board with Attiny1614 (It is ready)
• 2 x Sound sensors KY-037: I must get them
• 3 x Transistor TIP 120: I must get them
• 3 x Mosfet P-CH -30V 1.1A 3-SSOT
• RGB LED strip illumination: I must get it
• 12 volt power supply (2 Amp): I must get it
• Resistance 330ohm - 1/4w: I must get it
• Wires: I already have them

How much will they cost?

In this section, I present a detailed breakdown of the components and materials required for the final project, along with their respective quantities and costs. The total expenditure amounts to S/. 218.00.

What parts and systems will be made?

• The parts: You will have the structure or case and the cones to play shouting.
• The systems:The light system, the electronics, the power system.

What processes will be used?

• Computer aided design: Design all
• Laser cutting: Cut the cones or some parts of it
• 3D printing: Print the case and the cones
• Electronics production: Produce the electronic boards required for the project. PBC milling.
• Electronics design: Connect the sensors system and the lighing system
• Embedded programming: Develop the sensors software and the lighing software
• Input Devices: The microphones will be separated to detect independently

What questions need to be answered?

Ohmmie, now it's a game that relaxes you screaming. Shouting helps us relax because it releases physical and emotional tension, improves oxygenation, stimulates the production of endorphins and other feel-good hormones, and reduces the activity of the sympathetic nervous system, allowing the activation of the parasympathetic system. This combination of processes generates a sense of relief, calm and relaxation. If you have ever felt “relief” after screaming, it is due to this biological as well as psychological release. That said, the questions would be:

• First question, is how comfortable should be the experience?
• Other question, is how well understood is the lighting signals?...so Ohmmie's use stands universally 🌍.
• And the last one, is fun and relaxing?

How will it be evaluated?

• Design, interaction and comfort: Designing the case and how to be interact with users or position to get visualized.
• Lighting communication: It is necesary to define a simple and easy language to understand the lighting signals in orther to be universal and intuitive.
• System of sensorsHow the housing should be where the microphones go, how that part of the device will interact with the users' body and the comfort.
• The level of fun:How fun and relaxing the game is, if the logic is correct.

ProjectDevelopment

The development of Ohmmie 🧡 includes several key stages: designing the physical structure and electrical schematic, fabricating the PCB board and procuring the necessary materials. Then, laser cutting and 3D printing of the housing is performed, followed by assembly and soldering of the electronic components. Subsequently, the microcontroller is programmed and initial tests are performed to fine-tune the system. Finally, the device is optimized, the process is documented and the final presentation is prepared, ensuring that the project is functional, attractive and easy to use. Although due to spiral learning, this may not happen in this order.

What tasks have been completed, and what tasks remain?

By now the electronic design and the electronic production is solved as my “Ottino sound” board is complete and working, so The Ohmmie heart 🧡 already exists. The digital design is in process and the manufacturing of the case is on the way.

What's working? what's not?

What works is the electronics and the sensor system, the light system does not work yet. The case design is working well.

What questions need to be resolved?

• How comfortable and accessible should the experience be for all users?
• How do we ensure that the light signals are clear and easy to understand universally?
• How fun and relaxing will it be to use Ohmmy so that it fulfills its primary purpose?
• How do we ensure that the microphones pick up the screams accurately without external interference?
• What design or tweaks could we implement to make Ohmmy intuitive and appealing to any user?

What will happen when?

Before Ohhmie had another job as I told you, it helped you to breathe better, now it helps you to relax by playing screaming.

The first prototype of Ohmmie is expected to be ready to start playing as soon as possible.

Then in the future the new version of Ohmmie, the breathing trainer, could be released. Let's see what happens.

AboutLearning

- Developing Ohmmie 🧡 will allow me to understand how to combine hardware and software to create an interactive device that not only works well, but is also fun and easy to use.

- The value of user experience: I learned that it is not enough for a project to be functional; it must also be accessible, intuitive and generate positive emotions in the people who use it.

My Veredictfrom what I learned

- Ohmmie achieves its goal of transforming stress into fun: With its creative and playful approach, this device fulfills the mission of providing a relaxing and unique experience for users. Well developing it is not so relaxing for me.

- The project is a solid platform for future improvements. Although is functional, it has the potential to evolve, incorporating new technologies or adapting to different contexts to maximize its impact.