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Biomedical Engineering
Biomedical Engineering
The field of biomedical engineering deals with inventing and innovating technologies that improve on the health and safety of the general public
Electrical Engineering
Electrical Engineering
The field of electrical engineering studies the application of electricity, electromagnetism, and power systems with the intentions of advancing technology.
Parallel and Series Circuit
As a team, we began working on our parallel and series circuits, and along the way we learned about how they affect voltages and amperage. Even though many of our electrical components were faulty considering the rate of our high voltage that burned out many of our LED lights, we eventually managed to get the circuit to work and gained a better understanding of the concept and power of voltage.
The structure of the series circuit
The series circuit did not work due to higher resistance from the buttons than the voltage from the batteries.
The structure of the parallel circuit
The parallel circuit when two buttons are pushed.
Our Design Process & Concept
Simple logic gate circuit with three variables to light the green light bulb signifying that none of the buttons (symptoms) is pressed. AND and NOT Gates are used to deliver high as the outcome to the green light bulb when none of the buttons are pressed.
Simple logic gate circuit with three variables to light the yellow light bulb signifying that only one of the buttons (symptoms) is pressed. XOR Gate was used to deliver high as the outcome to the yellow light bulb when only one button is pressed.
Simple logic gate circuit with three variables to light the red light bulb signifying that two of the buttons (symptoms) are pressed. XOR, AND, and NOT Gates are used to deliver high as the outcome to the red light bulb when any two buttons are pressed.
Simple logic gate circuit with three variables to ring the sound alarm signifying that all the buttons (symptoms) are pressed. Two AND Gates are used to deliver high as the outcome to the sound alarm when all of the buttons are pressed.
Building Process
This is the green light circuit result. In this case, no inputs are being put into the circuit, given that there aren't any symptoms. Therefore, the green light automatically lights up, signaling the absence of COVID-19 symptoms.
This is the yellow light circuit result. In this case, only one input is being put into the system, any symptom contributes to the outcome. Therefore, the yellow light lights up, signaling that either a dry cough, lower oxygen level, or a higher temperature is present.
This is the red light circuit result. In this case, two inputs are being put into the system, without giving importance to which symptoms specifically are present. Therefore, the red light lights up, signaling that two of the symptoms previously stated are present, thus COVID-19 being more likely to be present.
This is the sound alarm result. In this case, all three inputs are being put into the system, all three of symptoms need to be present in order to contribute the the outcome. Thus, the sound alarm signifies that all three symptoms, a dry cough, lower oxygen level, and a higher temperature, which means that COVID-19 is present or highly likely to be present.
Schematic Diagrams
Visualized circuit schematic
Visualized circuit schematic
The circuit uses one XOR gate, two AND gates, and an inverter in order maximize the efficiency and minimize the amount IC's use for the device.
Circuit schematic of the device
Circuit schematic of the device
A more detailed schematic of the circuit logic gate
555 Timer Circuit
555 Timer Circuit
The circuit uses a single capacitor and three different resistors to allow for the 555 chip to generate the flickering effect that the output on pin 3 takes to the LED.
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