Project

# Title Team Members TA Documents Sponsor
63 Bluetooth Heater (Burner)
Navin Ranganathan
Shaunak Fadnis
Varun Kowdle
Zicheng Ma design_document2.pdf
final_paper1.pdf
presentation2.pdf
proposal2.pdf
# Bluetooth Heater (Burner)
# Team Members:

- Varun Kowdle (vkowdle2)
- Shaunak Fadnis (sfadnis2)
- Navin Ranganathan (navinr2)

# Problem
Each day, millions of people drink warm coffee, tea, or soup. However, one common challenge faced is maintaining the ideal temperature over time, especially in busy environments or during extended periods of consumption. Moreover, traditional methods like reheating in microwaves can degrade the quality of the drink or food, while passive insulating containers often fail to maintain the desired temperature for long. The repeated process of reheating can be time-consuming and energy-inefficient, making it a less than ideal solution for both home and office settings. This results to a compromised experience, as the taste derived from hot beverages and soups is significantly tied to their warmth.

# Solution

To address this issue, we propose to make a heating pad with bluetooth capabilities so that users can adjust temperature to three settings. This allows users to change the heating pad to their ideal temperature to the requirements of the beverage or soup. Integration of bluetooth allows for a convenient and remote control, enabling users to adjust settings directly from their smartphones. More importantly, we want to make sure that the pad is durable and energy efficient to support user needs.

# Solution Components:

## Subsystem 1
App (Bluetooth Connection) :
A bluetooth module will be used to communicate with a personal device to control the device. The user can set the temperature/heating amount for the pad(s), within a restricted amount. It will also provide feedback on what is at what temperature, and how long it has been (with possible warnings for a quality drop if it has been long enough.
Components:
Bluetooth Module (ex: RNBD451 - Microchip Bluetooth 5.2 Module)
## Subsystem 2
Heating Pad:
We would have a resistive heating element similar to a coil that would heat a pad for people to place cups, bowls, etc.. Using a temperature sensor we will feed data back to our control unit that also communicates with the app to see if any changes have been made.
Components:
Temperature Sensor
Heating Element Options:
Peltier Module (for adding cooling)
Inductive Coil

## Subsystem 3
Power Management:
Ensures the device operates efficiently, minimizing energy consumption while providing adequate power to the heating element. Components: Battery (if portable): A high-capacity, rechargeable battery that supports extended use on a single charge.Techniques such as automatic shutdown after a period of inactivity, or adaptive temperature control to reduce power usage when the target temperature is maintained. Similarly, bluetooth module to adjust temperature based on user preference

# Criterion For Success
The device must heat beverages or soups to the selected temperature with high accuracy and maintain the temperature within a narrow margin of error. Moreover, the device should maintain stable Bluetooth connectivity within a typical range, allowing for seamless communication between the heating pad and the user's mobile device.Likewise, the heating pad should use energy efficiently, reducing the need for frequent recharging (if battery-powered) or minimizing electrical consumption (if corded). Lastly, we must incorporate safety features to prevent overheating of both the pad and the beverage/soup, ensuring the device is safe to touch and does not pose a risk of burning the user or damaging surfaces.

GYMplement

Srinija Kakumanu, Justin Naal, Danny Rymut

Featured Project

**Problem:** When working out at home, without a trainer, it’s hard to maintain good form. Working out without good form over time can lead to injury and strain.

**Solution:** A mat to use during at-home workouts that will give feedback on your form while you're performing a variety of bodyweight exercises (multiple pushup variations, squats, lunges,) by analyzing pressure distributions and placement.

**Solution Components:**

**Subsystem 1: Mat**

- This will be built using Velostat.

- The mat will receive pressure inputs from the user.

- Velostat is able to measure pressure because it is a piezoresistive material and the more it is compressed the lower the resistance becomes. By tracking pressure distribution it will be able to analyze certain aspects of the form and provide feedback.

- Additionally, it can assist in tracking reps for certain exercises.

- The mat would also use an ultrasonic range sensor. This would be used to track reps for exercises, such as pushups and squats, where the pressure placement on the mat may not change making it difficult for the pressure sensors to track.

- The mat will not be big enough to put both feet and hands on it. Instead when you are doing pushups you would just be putting your hands on it

**Subsystem 2: Power**

- Use a portable battery back to power the mat and data transmitter subsystems.

**Subsystem 3: Data transmitter**

- Information collected from the pressure sensors in the mat will be sent to the mobile app via Bluetooth. The data will be sent to the user’s phone so that we can help the user see if the exercise is being performed safely and correctly.

**Subsystem 4: Mobile App**

- When the user first gets the mat they will be asked to perform all the supported exercises and put it their height and weight in order to calibrate the mat.

- This is where the user would build their circuit of exercises and see feedback on their performance.

- How pressure will indicate good/bad form: in the case of squats, there would be two nonzero pressure readings and if the readings are not identical then we know the user is putting too much weight on one side. This indicates bad form. We will use similar comparisons for other moves

- The most important functions of this subsystem are to store the calibration data, give the user the ability to look at their performances, build out exercise circuits and set/get reminders to work out

**Criterion for Success**

- User Interface is clear and easy to use.

- Be able to accurately and consistently track the repetitions of each exercise.

- Sensors provide data that is detailed/accurate enough to create beneficial feedback for the user

**Challenges**

- Designing a circuit using velostat will be challenging because there are limited resources available that provide instruction on how to use it.

- We must also design a custom PCB that is able to store the sensor readings and transmit the data to the phone.