Skip to content

Homework

Jump to bottom
Ezcal edited this page Oct 10, 2015 · 21 revisions

Table of Contents

Current Homework: 2 - Initial Proposal

Product Name TBD: A Digital Level

The project we have decided to move forward with is a digital level using an accelerometer. The microcontroller will be an Atmel ATmega328. Depending on the inclination of the level when it is placed on a surface, indicator LEDs will be lit up in imitation of the bubble on an analog level. There will be a power switch on the side to turn it on and off, and it will be powered with lithium ion batteries.

Requirement checklist:

  • 1 Sensor? Accelerometer
  • 1 Actuator? Multiple LEDs
  • Digital or Analog Processor? ATmega328
  • Safe? Yes
  • Schematic in progress using EagleCAD
  • PCB will be correctly sized
    • May have second PCB for LED assembly
  • PCB designed from scratch
  • >= 25% surface mount components: 100% will be surface mount
    • Components will all be larger than 0603
  • Will be built by our hands
  • Enclosure will be 3D printed
The Decision Matrix we used is here:
Miguel's Scores
. Ease Cost Interest Usefulness Style Totals
Laser Trip Wire System 1 3 2 5 3 14
Pulse (Heart) Monitor 5 4 4 5 4 22
Fingerprint Door Lock 4 3 4 4 4 19
Digital Level 4 4 2 4 2 16
Sabin's Scores
. Ease Cost Interest Usefulness Style Totals
Laser Trip Wire System 3 5 2 3 2 15
Pulse (Heart) Monitor 4 4 2.5 4 3 17.5
Fingerprint Door Lock 3 4 3 4 4 18
Digital Level 4 4 3.5 3 3 17.5
Christina's Scores
. Ease Cost Interest Usefulness Style Totals
Laser Trip Wire System 2 1 3 2 3 11
Pulse (Heart) Monitor 3 3 3 4 4 17
Fingerprint Door Lock 3 3 3 4 3 16
Digital Level 3 4 4 4 3 18
Cal's Scores
. Ease Cost Interest Usefulness Style Totals
Laser Trip Wire System 3 4 3 3 2 15
Pulse (Heart) Monitor 4 3 2 3 2 14
Fingerprint Door Lock 2 2 4 4 4 16
Digital Level 3.5 3 5 5 3 19.5
Overall Scores
Laser Trip Wire System 55
Pulse (Heart) Monitor 71.5
Fingerprint Door Lock 69
Digital Level 71

Alternate Idea Paragraphs

Laser Tripwire

Your text here

Pulse Monitor

Your text here

Fingerprint Door Lock

Your text here

Previous Homework Assignments

Clone this wiki locally