CCA Digital Electronics, Spring 2013

Science 200:08: Digital Electronics
Spring 2013
Friday 08:00 AM – 11:00 AM
Main SF Bldg, Room 107 (Hybrid Lab)

Week 1 Friday, January 25

Syllabus: The latest version is always here

Lecture

  • Basic circuit theory
    • components
    • connections
  • solderless breadboards

Lab

  • Solderless breadboard
  • Resistors in series and parallel
  • Measuring voltage drops
  • observing LED brightness
  • observing KVL

Homework 1 due week 2 Friday, February 1

  • Purchase the required textbook: There Are No Electrons: Electronics for Earthlings (Clearwater Publishing) by Kenn Amdahl
    ISBN-10: 0962781592
    ISBN-13: 978-0962781599
  • Read in the book from the very beginning (About This Book) through page 33
  • Do either the even or odd exercises of these Basic Math Exercises.
  • A good discussion of scientific and engineering notation (and prefixes) is here. If you find better sources, please let me know.

Week 2 Friday, February 1

Homework 15 minutes

Review Questions

Lab

  • 5V regulator
  • LED on input and output
  • Soldering

Lab Questions to answer

  • Are we violating the law of conservation of energy?
  • Where are the other 4 volts going?
  • Why is the voltage on the capacitors the same as the input and output voltage?

Lecture

  • What’s going on inside the regulator?
  • Why do we need the capacitors?

Review

  • What is voltage?
  • What is current?
  • If there is no movement of electricity, is there current?
  • If there is no movement of electricity, is there voltage?
  • How is the law of conservation of energy observed?

Challenge

  • What can you say about the conservation of mass or matter? Where might it be represented?

Vital things to remember

  • What is voltage
  • What is current
  • Conservation of energy
  • Conservation of mass

Homework 2 due week 3 Friday, February 8

  • Read from page 34 to magnetism on page 41 in There Are No Electronics
  • Read tutorials 1-4 of Electronic Tutorials about DC Theory
  • Read Chapters 1-6 in Volume 1: DC of Basic Concepts of Electricity in All About Circuits, a free online text book
  • Research and explain in your own words the resistor color code
  • Write, in your own words, voltage, current, conservation of energy, and conservation of mass (or  matter). You are encouraged to draw diagrams or pictures.

Week 3 Friday, February 8

Homework 15 minutes

Answers to math exercises: Page 1, 2, 3, 4

Reading Review Questions

Lecture

  • Resistors sharing the same current
  • Resistors sharing the same voltage

Lab

  • Soldering
  • Arduino power supply

Review of key concepts

  • What is voltage
  • What is current
  • Conservation of energy, Kirchoff’s Voltage Law
  • Conservation of mass, Kirchoff’s Current Law
  • Current is the same in any components which are connected one after the other with no other connections at the joining node, so that all the current that flows through one component has no where to go but into the next component.
  • Voltage is the same across any components connected to the same two points electrical points, or nodes
  • Ohm’s law
  • Equation for power

Homework 3 due week 4 Friday, February 15

Week 4 Friday, February 15

Homework 15 minutes

Check lab writeups

Review Questions

  • What is voltage
  • What is current
  • Conservation of energy, Kirchoff’s Voltage Law
  • Conservation of mass, Kirchoff’s Current Law
  • Practice with circuits illustrating the above two points
  • Current is the same in any components which are connected one after the other with no other connections at the joining node, so that all the current that flows through one component has no where to go but into the next component.
  • Voltage is the same across any components connected to the same two points electrical points, or nodes
  • Practice with circuits illustrating the above two points
  • Ohm’s law
  • Equation for power
  • Resistor color code

Lecture

  • Resistors sharing the same current
  • Resistors sharing the same voltage
  • How to calculate effective resistance

Lab

  • Add 28 pin socket, power, and ground
  • Add crystal
  • Add reset pullup
  • Add pin 13 LED

Homework 4 due week 5 Friday, February 22

  • Read from Capacitance on page 55 to page 77 in There Are No Electronics
  • Do Exercises 80 through 84 of Basic Electronic Exercises

Week 5 Friday, February 22

Homework 15 minutes

Review Questions

  1. What is series, parallel,
  2. What is voltage, current
  3. What are features of series components and parallel components
  4. Examples using KVL,  KCL
  5. Voltage divider
  6. Ohm’s law
  7. Power
  8. Resistor color code

Announcement

  • I will be gone for two weeks in March and so there is no class on March 15 and 22. We will make up the missing time later with extra lab hours for your projects.
  • Reminder: if you are sick you are still responsible for homework, knowing lecture, and doing lab

Lecture:

  • Capacitor
  • Transistor

Lab

  • Finish power
  • Add LED and reset pullup

minimal

next week

  • Need for pullup or pulldown

Homework 5 due week 6 Friday, March 1

Week 6 Friday, March 1

Homework 15 minutes

Announcement

  • I will be gone for two weeks in March and so there is no class on March 15 and 22. We will make up the missing time later with extra lab hours for your projects.
  • Reminder: if you are sick you are still responsible for homework, knowing lecture, and doing lab
  • Homework: Neatness counts
  • We will have midterm reviews next week

Lecture:

  • Review capacitor, transistor
  • Analog vs. digital
  • (Binary) digital logic
  • Clocks
  • Binary numbers

Lab

  • Check everyone’s lab progress (should all be done with ___)

Homework 6 due week 7 Friday, March 8

  • Do any homework that you have not done
  • Re-do any homework that you got wrong
  • Your goal is to convince me that you understand all the homework that we have done up to now

Week 7 Friday, March 8

Midterm Evaluations

SAMSUNGHomework 15 minutes

Announcement

  • I will be gone for two weeks in March and so there is no class on March 15 and 22. We will make up the missing time later with extra lab hours for your projects.

Lecture

  • Arduino IDE
  • Sensors and actuators

Homework

  • Install the Arduino IDE
  • Install the driver
  • Browse the Arduino examples in your Arduino IDE
  • Research potential projects using your Arduino. Some resources:
  • Describe your project. Think about what sensors and actuators you might need. Think about what the software might have to do.

Friday, April 5

Homework due Friday April 12

Present your initial concept for your project. Your project must be sufficiently complicated to qualify as a final project for this class. It is not sufficient to turn on some LEDs or a motor. If you are unsure, write to me, and we can discuss whether your project qualifies. Similarly, it’s OK if you don’t know everything yet.

You should address the following:

  1. Brief overview of the concept.
  2. Block diagram or schematic.
  3. Identify what’s technically interesting, in the context of this class.
  4. Parts list.
  5. Identify the risky areas of your project. These might be technical, financial, time, or logistical: anything that might cause your project to fail.
  6. References to web sites or projects that provided inspiration, technical information, etc.

Friday, April 5

  1. Project presentations
  2. Calendar
  3. What will you do before our next meeting?
  4. Schedule makeup time (Friday PM, Monday)
  5. Arduino Atmegaxxx Pin Mapping
  6. Using the TLC5940 to control 16 LEDs
  7. LM317 constant current driver
  8. Adding a transistor to the Arduino to control a motor
  9. Adding another chip to Arduino: the H bridge

Homework due Friday, April 19

  1. It is your responsibility to ask me for help with your project
  2. You have additional lab time with me every Saturday and Monday from 3 PM to 5 PM, until the end of the semester
  3. Create a Google doc for your project:
    1. The document name should be your name
    2. Describe your project
    3. Include any pictures, sketches, descriptions, and schematics you have
    4. Make a “to do” list, itemizing all the tasks you need to do
    5. Itemize weekly which “to do” items you’ll have done by each Friday
    6. Make a “Questions for Teacher” list of everything you need to ask me about
    7. Make a shopping list of everything you need to get
    8. Include any pictures, sketches, descriptions, and schematics you have
    9. Include any links you have found that might be useful. This includes other projects, inspiration, schematics, videos, etc.
  4. Contact me via email if you do not understand this. This document is part of your homework for April 19.
  5. Finish all the “to do” items that that are due on April 19

Friday, April 26

  • There is an end- of-semester show in Oakland, Saturday May 11th for electronic and kinetic projects. The show usually runs from about 7pm to 11pm. Unfortunately I will be unable to attend but you are encouraged to participate. Please contact Barney Haynes <bhaynes@cca.edu> to confirm your interest.
  • Here is a massive list of local and non-local resources for services, parts, and materials
  • Maker Faire is on May 18 and 19. I know it’s graduation, but if you have time, it’s an event not to miss. There are many ways to participate, including for the first time participating in the CCA booth:
  • If you have not yet done the course evaluation, please do so. If you have not received the evaluation email, please email Holly S. Castrillón hcastrillon@cca.edu
  • The deadline for projects is the last day of class, May 10
  • Please check that the Google doc for your projects has as a title YOUR NAME otherwise I can’t tell which one belongs to whom

Announcements for Friday, May 3

  • Projects are due at the beginning of our last class, May 10. Class will not be a work session.
  • Extra lab hours tomorrow (Saturday) from 3-5pm and on Monday from 3-5pm
  • Please bring your projects to our last meeting, working or not. Partial projects will earn partial credit.
  • Be prepared to demonstrate and give an informal presentation of your project, explaining what worked, what didn’t, and lessons learned.
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