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Electronics Technology

Student Project Showcase - 2017

Alex Hansen and Norberto Estrada Sound Effects Processor

Alex Hansen and Norberto Estrada
Sound Effects Processor

The hardware chosen was intended to straddle both professional audio and gamer quality. The switches and potentiometers were specifically chosen among others for their tactile response and reliable operation. The octave switch was meant for a guitar as a pickup selector, and has needed some slight modifications to work properly for our application. The whole idea for using so many flip flops is simple, for one, they’re very cheap and available, but they also allow greater flexibility in terms of experimentation and design. For latter iterations, we will likely consider using counter chips that are essentially multiple flip flop chips prewired in a package to save costs and time. However, in the meantime we preferred being able to keep track of each stage using a more modular design to try new ideas if they arose.  The oscillator is perhaps the most unique aspect of this project, instead of using a premade oscillator chip that is designed to make one to three waveshapes, we opted for a custom design using a demultiplexer to allow the greatest possible waveshape.

Alex Hansen is now working for Johnson Control HVAC in Portland as an Electronics/Electrical Technician.

Brad Richardson Puzzle Box

Brad Richardson
Puzzle Box

The electronic controlled puzzle box uses various inputs set up in a sequence to open the box. 

The possible inputs include: sound (whistle the right tone), distance (place a hand so far away to activate), light sensing (on or off in a pattern), or an accelerometer (move the box in the correct direction to trigger response). The control of the box will be run with an Atmega32 microprocessor and use a 5 volt battery pack.

We may see Brad back taking some courses so he can keep adding to his puzzle box. Brad is retired from the Coast Guard and we thank him for his service.

Brandon Fletcher and Brian Sinclair's Fountain project

Brandon Fletcher & Brian Sinclair
Fountain Project

This project was inspired by the water jet fountains at the Bellagio Hotel & Casino in Las Vegas that spray amazing patterns. Our controlled water fountain will be on a much smaller scale.

The unit will consist of a water reservoir, a water pump, and plastic tubing to ensure constant water flow to feed our 5 solenoids. The plastic tubing will connected to the solenoids, water pump, and feed up to a display dish that will be the water drain as well. The Atmega 32 microcontroller will be running the programs that control the solenoids.

The end result of this project will be a 5 - spout water fountain that will be able to spray patterns of water. We plan on having an assortment of spray pattern for our fountain. 

Both Brandon and Brian will be transferring to Oregon Institute of Technology into their Embedded Hardware Engineering Program in the Computer Science Engineering Technology Department.  They will do well.

Cedric Gregorys Crash Avoidance System

Cedric Gregory
Crash Avoidance System:

The project is in two parts, a crash avoidance system for the power wheels that changes a RGB Led from green to red when an object is in front of the infrared proximity sensor.

The other part of the project is to display on an LCD the speed of the power wheels using a hall sensor to detect that magnet attached to the wheel.

Mark Thibault's Candy Sorter project

Mark Tibault
Candy Sorter

Arduino Uno based color sorting device - It will individually feed in a mix of colored candy pieces, determine the color, and distribute the pieces into discrete receptacles based on piece color.  

A running color tally of processed candy will be displayed on an LCD.  Once the candy sorter is empty the microcontroller will check 5 consecutive times and then stop sorting. This project can expand to look for other colors, smaller or larger items.

Mark is currently working at MetOne.

See the Candy Sorter in Action!

Mathew Potter's MattNet Low-Cost Lidar unit poject

Mathew Potter
MattNet Low-Cost Lidar Unit Project

This project creates an image that presents a series of distance measurements as varying levels of grey. This can be used to create a digital depth image of a scene where a digital camera might get color information.

The resulting image can be used to create 3D scenes, get surveying information, or take distance measurements of a room or outdoor scene. Matt promises to come back after the mechanical issues are figured out and demonstrate the project.

Mathew Potter is now Senior Test Technician for ESAM in Grants Pass.

Stephen Lankford  The Porcelain Servant Project

Stephen Lankford
The Porcelain Servant Project

The project is focused on the automation of a toilet made possible by voice recognition technology. Depending on specific spoken terms, stepper motors will control the lid, seat, and flush of a toilet. An LCD screen will also display messages to the user and a speaker will emit a tone when the toilet should not be touched for the sake of protecting the stepper motors during movement. 

Stephen will be spending one more year with us before transferring to Oregon Institute of Technology. He plans to major in Embedded Systems Engineering within the Computer Science Engineering Technology Department.

Tyler Fugate Conveyor System Project

Tyler Fugate
Conveyor System Project

The project is about controlling a conveyor belt system using bi-polar stepper motors.;

Tyler wants to use the conveyor system to assist in curing an epoxy glue using UV LEDs. 

This project is a proof of concept for the company that Tyler currently works (Laser Diode Concepts).

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