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In-Class Activity - Fantasy Device

Most people are curious about their bodies, especially if it is not external body part. For women, the gynecological examination is essential and one of the important annual check-ups. A mong the numerous fantasy device ideas on the list, my team and I chose to make a portable self-educational transvaginal ultrasound device for both medical and educational uses. This device will allow people to educate themselves privately before they go for an actual check-up. Also, it can be used at an individual doctor’s office to educate and offer visuals for patients before they get upcoming procedures.


This sketch shows a general idea of the device with simple lines. While using the device, users can see the inner vaginal part through the 360 cameras attached to the device through screens on a smartphone, tablet PC, or laptop.

︎Rough 3d Render Image︎


Here is a rough mock-up of the device. It has a 360 camera on the top of the stick and also, there’s an on and off button with the wire that can be connected to the phone, so people can watch it through the phone screen. It also offers Bluetooth mode. The inserted device will allow users to explore and learn about their particular body parts through the screen, and the device also can detect any symptoms they may have.

Lab  #1 
Basics for Electricity (Terms, Components)


These components will be used for making electricity for the first week of the lab assignment. First, I labeled each of them, so I could easily find when I needed any components.

︎Terminology for Electricity︎

Materials that allow electricity to flow through it Copper, Silver ,Gold, Aluminum, Iron, Brass, Nickel, Zinc, (Most Common metals to some degree), Salt water.

Materials that Don’t allow electricity to flow Air, Plastic, Glass Rubber, Wood, Concrete, Resin, Ceramics.

Components that transform one form of energy into another Sensors (Inputs) :  Take physical phenomena such as force, air pressure, light, magnetism, etc, and convert those physical properties into electricity.

Actuators (Outputs):
Speakers, Motors, Heaters, Lights, LEDs. Components that take electricity and convert electricity into physical forms such as sound, movement, heat and light.

Components that limit how much electricity can flow through. (Semiconductor). Resistance is the measurement of how much a material restricts electric flow. Resistance is measured in ohms Ω. The more resistance the more it blocks electricity.

Power Supplies:
An electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. (AC - “alternating current” into DC - “direct current)
All DC power supplies have 2 terminals (connection points)
  • Positive Voltage ( + )
  • Ground / GND  ( - )

Diagrams that show us how to properly construct our circuits.
Identify each component and where it connects in the circuit.
Check for polarity / orientationDouble check connections.


The thing your circuit is powering.  The component that uses electricity. Every Circuit needs a Load.

Short Circuit:
Any direct connection between your + and -Electricity will follow the “path of least resistance”. Short Circuits can be dangerous Short Circuits can destroy your parts.

Setting up the Breadboard

  • This was my first time setting up the breadboard, but I could be able to follow the steps, and the instructions were clearly explained. However, I was having trouble understanding how electricity flows through the wire and calculating them.

  • The multimeter kept giving me “0”. So, had to check most of the multimeter to see which one works. ︎

Powering A Breadboard Circuit From A Microcontroller Via A DC Power Supply

  • First, I made a circuit with a button connected in series with a LED, with the button off. Then I realized I needed extra wires to connect and resistors to make a clear path.

  • HOWEVER, after spending hours setting up the breadboard...it did not work, so I had to change it to the new breadboard.

Finally, lit up!