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Page history last edited by Michael Shiloh 8 years, 6 months ago

Basic Digital Electronics at CCA, Spring, 2012


Electronics kit Discover Electronics Kit Version 2 $49.99

Custom Arduino parts Breaduino for Shiloh $15

FTDI USB/serial adapter


Week 2

Wednesday, January 25, 2012



  • Tools and electronics parts from cabinet
  • Power strips and extension cords from media center
  • Meet in room GC4, which is a larger classroom



  • electricity
  • conductors/insulators
  • open circuit, closed circuit, short circuit
  • power supply, load
  • voltage, current, resistance
  • Ohm's law (theory)
  • Ohm's law (practice)


  • Second light bulb: where do we put it?
  • conservation of matter, conservation of energy
  • equivalent resistance
  • Non-resistive components  


  • Current limiting resistor with LED
  • Measure voltage in resistor, calculate current
  • Measure voltage on LED
  • Add voltages
  • Time permitting, add second LED  

Homework due Wednesday, 2/1/2012:

  • Create your own reference sheet. Show me, but do not hand in:
    • Define voltage, current
    • Scientific notation and eng. prefix (milli, micro, nano, Mega, Kilo, etc.)
    • Resistor color code 
  • Research and read about KVL and KCL
  • Explain KVL and KCL in your own words
  • Exercises 65 and 66 at https://teachmetomake.wordpress.com/basic-electronic-exercises/ 


Week 3

Wednesday, February 1, 2012



  • Tools and electronics parts from cabinet
  • Power strips and extension cords from media center
  • Meet in room GC4, which is a larger classroom



  • voltage, current, resistance
  • Ohm's law (theory)
  • Ohm's law (per component)
  • Equivalent resistance
  • Components connected in a way that all the current from one flows to the other (series)
  • Components connected in a way that the voltage across one is identical to the other (parallel)
  • LED and current limiting resistor 


  • Voltage divider  
  • Photoresistor
  • Capacitor, comparator, flip flop, 555


  • 555 blinker

Homework due Wednesday, 2/8/2012


Week 4

Wednesday, February 8, 2012


  • Last minute homework questions
  • Attendance
  • Common mistakes in last homework:
    • Neatness!!!
    • Read the instructions and do all parts!
    • Units!
    • Math!
    • Prefixes! 20K ohm 
  • Who emailed me homework?  That's not working.
  • Hand in homework no later than 15 minutes of class starting
    • Who ordered the kit?
    • Who ordered the ftdi serial adapter? 
    • Hand in the rest


  • voltage divider
  • LED and current limiting resistor 


  • Capacitor, transistor, digital/analog, comparator, latch, 555


  • learn to solder! next week: build arduino

Homework due Wednesday, 2/15/2012

Homework due Wednesday, 2/22/2012

I did not get the homework up in time so there is no homework. However, remember to bring to class next week:

  • FDI
  • Experimenter's kit
  • Arduino
  • Laptop 

Next week, please:

  • help me bring in equipment from my car
  • help set up the room for soldering 


Wednesday, February22, 2012


Homework due Wednesday, 2/29/2012

  • Order your FTDI USB adapter (see the top of this page) or be prepared to share with someone, or, if you have an Arduino, you may use the built-in USB adapter on it instead.
  • Install the Arduino IDE on your laptop from arduino.cc
  • Bring a USB cable to fit FTDI USB adapter (mini-USB)
  • Read all 7 Arduino tutorials by Lady Ada and be prepared to do them


Homework due Wednesday, 3/14/2012


Wednesday, March 14, 2012


  • Voltage regulation
  • Polarity!


  • Power supplies for all
  • Add two new digital lines

  • On breadboard, add a second LED
  • On breadboard, add a transistor and speaker
  • Melody tutorial
  • On breadboard, add a transistor and control a motor
  • PWM tutorial 


Homework due 3/28

  • Research, describe, and hand in: transistors, PWM, and how to use PWM to control light brightness and motor speed
  • Research, describe, and hand in: relays and controlling motor direction
  • Learn how to do PWM with Arduino
  • Learn how to use a transistor to control a relay with Arduino
  • Come up with a project idea. Describe it.
  • Create a folder on this wiki with your name
  • Describe your project on a new page in your folder



Wednesday, March 28, 2012

  • What is Arduinio 
  • What can we do with it
  • Projects



Homework due Wednesday 4/4

  • Everyone must make a project journal file in their folder.
  • Describe, briefly, your project. You may use the homework you handed in.
  • You will update this at least twice a week: Once before class, and once after: 
    • Today's date
    • Today, what is the current highest risk part of your project?
    • what is your plan to alleviate that risk?
    • what is you plan to do for/in next class? 
    • what actually happened?
    • What will you do before the next class meeting?
    • What problems did you run in to
    • What is your plan forward?
    • what parts, information, and assistance do you need ?


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