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no cool name necessary... ...maybe...

Darin Gray

on 20 July 2015

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Transcript of Group1

Group 1
Design Process: First Steps
We began by working on the circuits assigned. We built truth tables, Boolean equations, and struggled with designs. Some of us experimented with the Arduino. Others, Yenka.

- The smaller projects are elaborated on in the next few slides.
Design Process: Main Board
The Medicine dispenser consists of three parts: the timer, the buzzer, and the main board. The main board consists of all the logic gates, switches, and LEDs. Despite a relatively short and simple design process, creating the actual circuits proved difficult at first. After condensing the design (shortening all the wires), it worked as an independent unit.
Design Process: Timer
Based off of the 555 Timer program on the computers, this circuit creates the pulse for the flip-flop and powers the entire device. Since there were no 0.01 uf capacitors to be found, a series of 10 much smaller capacitors dominates half of a mini breadboard. When originally created, a blue LED was used to visibly show the pulse.
Design Process: Buzzer
Biomedical Engineering
Engineers who use their training to develop devices that have a medical purpose. CAT scans, MRIs, and prosthetic limbs all require Biomedical Engineers to design, build, operate, and maintain.
Design Process: Final Product
The buzzer, timer, and main board all functioned well on their own, but integrating them caused odd problems to pop up. The main board and buzzer were joined without much incident, but adding the timer caused a severe drop in voltage. After removing the blue LED, it was discovered that the flip-flop was still
missing. 3 flip-flops later, this is the
Medicine Delivery System
Electrical Engineering
Computer Science
The most critical for patients in critical condition, the buzzer activates when three symptoms are detected. Despite its simplicity, this circuit was an important platform for learning to simplify (shorten/remove wires from) circuits, troubleshoot, and to read labels carefully. At first, the alarm rang at a very low volume. We found that the transistor was not only backwards but also the wrong type. We also began to make full use of the breadboard and eliminate excess wires to lower the total resistance in the circuit. After solving the issues, the buzzer worked at full volume.
Rock, Paper, Logic
College Admission Logic Tables
Binary and Logic Circuits
While somewhat confusing for most people,
the electronics we use are easily able to
comprehend Binary. Since only 2 digits (1
and 0) are ever used, the radix (base) is
always 2.
This applies to logic gates. Digital logic, as
it is sometimes called, only has two modes
that have several names; true/false, yes/no,
on/off- the list goes on.
We used this binary way of thinking when
designing our logic circuits.
It also helps to know the different kinds of
gates. One member of our team managed to
successfully design a circuit for the college
application device using only AND gates. After
OR gates and Inverters were added to the mix,
the design was much simpler.
Vending Machine Circuit Plans
Although never actually built, planning this monstrosity required two people just to work out the Boolean equations in a timely manner, and a third to help with the truth tables.
This gadget's purpose was to inform someone, based on the classes and/or tests they have taken, whether they have a high or low chance of making it into college. Although the design was complete, we did not actually have sufficient time to complete the actual circuits. The device was eventually scrapped for additional wires.
This circuit was hammered out on Yenka. The Rock, Paper, Scissors circuit was a large and complicated design; even when only half of it was functioning. After several trials, we finally got our circuit to work properly on the Yenka simulator. However, we never got to build the actual circuit.
Electrical Engineering is responsible for modern society. From the Fridge in your dorm room to your beloved smartphone, Electrical Engineers are the ones who designed the circuitry and chips. They continuously refine their designs to consume less power and space while doing more.
Electrical Engineering deals with circuitry, whereas Computer Sciences use similar design processes to program devices and input code. Its the difference between building the Vending Machine circuit with logic gates and building it with the Arduino.
Exploring Engineering textbook
Mr. Gray
- Arduino testing
and programming
- Yenka
to get a working
Thank you!
For our medicine delivery system to sell we must look at things from another window. It's true that our machine works but would someone really want to use it in this state? I can't imagine carrying around a computer that has it's wires on display. It would still do it's duty but in terms of convenience there would be a huge problem. Considering this, the next step we'll need to take is designing a box for our machine and stabilizing the components to a certain place in that box. We also need to make sure that the wires stay in the breadbord under any circumstance.
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