Dec. 26, 2017
Some random factoids regarding final grades, etc.
- Population: total – 169, CprE – 62, EE – 100, other (ConE, ME, exchange) – 7
- Average total score – 82.9 with standard deviation of 9.3
- Highest score – 98.7 (obtained by a CprE student)
- Lowest score – We won't talk about that.
- For the tribes: CprE average – 82.4, EE average – 82.8 others – 89.5 !!
- Another way of slicing the tribes: Section B had the highest average of the 8 sections – 85.4
Some random factoids regarding exam 3.
- Average score – 31.15 with standard deviation of 6.01
- There were 11 perfect scores.
- For the tribes: CprE average – 31.2, EE average – 30.8, others – 35.0 !!
- Another way of slicing the tribes: Section B had the highest average of the 8 sections – 32.7 (0.1 ahead of section A)
Sometime before the beginning of spring semester, the 201 web site will go into "sleep" mode. All of the basic content (notes, practice problems, lab descriptions, homework problem descriptions) will stay in place. All of the solutions (exams, homeworks, quizzes) and any other material relating specifically to Fall 2017 will go away — if there is any of that stuff that you want to download and keep, now is the time to do it.
Dec. 25, 2017
Dec. 20, 2017
- I have sent the grades to the registrar. You should be getting the official notice soon. (Or perhaps you already have seen it.)
- All of the scores have finally been posted. If you care to have a look, use the Scores link above — it works now.
- There may well be errors in some of the scores. However, most discrepancies will not change your letter grade. In particular, a missing quiz or a few missing points on a homework / lab / exam will probably have negligible effect. The things that may well have an effect are big scores that are completely missing. Adding 40 or 50 points to the lab or homework scores may change the total enough to move your letter grade up one notch. (Or it may not.)
- If you find a discrepancy, please do one thing before firing off an email to me and starting up an angry reddit discussion about it — calculate a corrected value for the total score to see if it there really is enough shift to cause your letter grade to change.
- All that being said, I am happy to correct any errors and make grade adjustments that are warranted. Send me an email or come see me at the beginning of next semester. However, I will need some evidence in order to make changes. If you have the graded work, then you can send me a good scan of it with the correct grade clearly shown. Even better is to bring it to me in person in January. There is no particular hurry — grades can be changed anytime.
- If you would like to see your graded Exam 3, I will have them available in my office — now if you are still in town or later when you are back in January. I can also send you a scanned copy, if you are out of town and have a burning need to see it right away.
Dec. 15, 2017
Update! Sadly, one of my solutions earned only 38 points out of 40. There was a sign error on the second problem of the Thursday solution, leading to the wrong answer. This has been corrected. Thanks to Luke and Shahzaib for pointing out the error.
Dec. 13, 2017
- Solutions to the recent (and most pertinent) quizzes have been posted, along with solutions to a handful of the AC analysis problems.
- The EE 333 class is having their "Project Expo" starting at 9:45 a.m. today in Coover 2011, (which was the lab room for some of you). If you are bored this morning, you are welcome to stop by and have a look at the hardware produced by the students taking one of the possible upper-level circuits classes.
Dec. 12, 2017
- The formula sheet that will available for exam 3.
- Here are the solutions to the old exam 3. Sorry about the weird strip from top to bottom — no idea where that came from — but I think that you can make all of the pertinent info.
- I can't allow any more switches from the Wednesday final to the Thursday. As it is, I've probably already allowed for too many switches, and I may need to find extra space for the additional test takers Thursday morning. There is still space available for switching the other way, from Thursday to Wednesday, if anyone is up for that.
Dec. 11, 2017
The exam review tonight will be in Hoover 1227, the same room as used previously. The time is the same, also — 8:00 p.m. until whenever.
Dec. 8, 2017
Some items as we finish up and head into finals week:
- Exam time for sections A, B, C, and D: Thurs, Dec. 14 at 9:45 a.m. in Durham 0171.
- Exam time for sections E, F, G and J: Wed, Dec. 13 at 2:15 p.m. in Hoover 1227.
- You can take the exam at the "other time" if you want, but please let me know via email about that before-hand.
- Here is an old exam 3 for you to use as you prepare.
- We will have a review session on Monday, Dec. 11 at 8:00 p.m. Place to be determined.
- I will be available in my Durham office from 10:00 a.m. onward on Monday and Tuesday. Same on Wednesday up until the time of the exam. (I may be out for short periods of time to run errands or get lunch.)
- You can pick up the graded exam 2 from me in my office on Monday or Tuesday. If you don't pick them up then, I will bring them to the exams. (Implication: You are not getting them back today.)
- You will also be able to pick up old quizzes, lab reports, and homeworks at my office.
- I will be posting solutions to to the quizzes and homeworks over the weekend.
Dec. 7, 2017
One last Arduino club meeting this semester. Tonight at 8:00 p.m. in Coover 2011. We will try making our own Arduinos (Bareduinos). If you want to build one, the parts will be $7.00, payable to GT. Watching and listening is always free. Remember to bring your EE 201/230 tools if you want to build stuff. Also, if you have an Arduino, you might want to bring that along with a laptop and USB cable for programming.
Dec. 6, 2017
- Reminder: There will be a quiz on diodes today. (Not AC analysis.)
- I will not be in my office between 1:00 and 2:00 today — I am off listening to senior design presentations.
- In class today, we will be talking very briefly about the "War of Currents", waged between Thomas Edison and George Westinghouse, who was using the ideas of Nikola Tesla. (Spoiler: Westinghouse won.) If you want to learn more about this interesting bit of technological history, here is the Wikipedia page describing the events. If your ability to absorb written information has been stunted by watching too many YouTube videos, here is the YouTube version.
Dec. 5, 2017
- Homework set 12 (The last one!) is available.
Nov. 26, 2017
- Reminder: There are quizzes on AC analysis on Monday and Wednesday of this week.
- Homework set 11 is available.
Nov. 16, 2017
Audio Club — Thursday, Nov. 16, 8:00 p.m., Coover 2011.
We will be building a version of the Altoids amp. I'll bring the needed parts, if you will pay for them. If you would like to try building it, please send me a note (email, slack, or yell at me from across campus) to let me know — I need a rough count so that I bring enough stuff. The parts in each kit cost about $9. In addition, you will need an empty Altoids tin — you can eat the candy yourself or force feed it to your roommate — and two 9-volt batteries, although you don't necessarily need these for soldering together the circuit. I know that this is a busy time of the semester, so there are no worries if you would like to build one these little amps, but can't do it tonight — I'll have extra kits available later, and you can pick one up to use at a more convenient time. And if you don't want to pay for a kit now, you are stillwelcome to come by the meeting to hang out and watch the fun.
Nov. 12, 2017
- There will not be a quiz in class tomorrow. I assume that you are still licking your wounds from the exam on Friday. Also, we are probably not quite ready for an AC analysis quiz. But we will be on Wednesday for sure.
Nov. 9, 2017
- Solution to the old exam.
- No Arduino or Audio Club tonight because ... exam tomorrow.
Nov. 8, 2017
- Exam review session: Tonight (Nov. 8) starting at 8:00 p.m. in Hoover 1227 (the room for the afternoon lecture). Bring your questions.
Nov. 7, 2017
- It appears that many people did well on the complex number quiz on Monday, but it also appears that lots of people could use some practice. This means that we will have quiz 21 — with more complex number calculations — in class tomorrow.
Nov. 6, 2017
- Note that Lab 9 has been revised slightly. The circuits have been changed to use the better quality 15-mH inductors (available in lab), and some of the measurement frequencies have been changed.
Nov. 4, 2017
- Here is an old version of exam 2 that you can use to prepare for the upcoming exam.
- And the formula sheet that will be available to use during the exam.
- Some old business that I should have taken care of long ago — solutions for exam 1: version A and version B.
Oct. 29, 2017
- Eric Schares, my good friend who works in the library, needs some skilled assistance with one of his
current projects. He would like to have 2 or 3 ECpE students help him with some hands-on electronics
instruction in a workshop that he is putting on. His email is copied below. If you would be interested in doing this,
contact him directly (firstname.lastname@example.org). It would be a nice opportunity to "give something back", which is always a good thing and can
generate some warm fuzzies. (It's the only thing that keeps me going.) Eric graduated from ISU with an EE degree a dozen years or
so ago and worked at Intel for a decade before opting for a career change. So while you are helping him at his workshop, you can also
hit him up for advice on what it is like out in the (cough, cough) real world.
I am putting on an introductory workshop next week on the basics of getting started with Makey Makey, Arduino, and Raspberry Pi. The workshop is next week, Thursday, November 2 from 3-4:30pm in Room 32 Parks Library, and I am looking for 2 or 3 ECpE students who would be willing to assist me in delivering it. We have 10 people signed up to attend so far. The first 30-45 minutes would be me presenting a Powerpoint on the differences and pros/cons of these three kits, and the last 45 minutes are for the attendees to grab a kit and build a simple circuit or project. The students’ main job would be to help in this last 45 minutes of hands-on unstructured time, going from person to person to help troubleshoot or get an LED to blink properly. I am not able to offer any pay beyond a free coffee at Bookends, but I would be more than willing to provide a recommendation for the student if they wish. I also plan for this workshop to be offered each semester, so students could conceivably help out multiple times if they enjoy it.
Could you please publicize this to your students, and have them contact me if interested?
- Homework set 9 is available. The due date is Fri, Nov. 3.
Oct. 26, 2017
- Audio/Arduino Club at 8:00 p.m. in Coover 2011.
More soldering tonight. “Seeing” how to solder is quick — there is not a whole lot of deep theory behind this skill. But learning how to solder and making your own circuit from scratch is slower, as we learned last week when a number of people got a good start on the the 555 blinker that we are using as an example project. We got through about half of the build last time and will complete it this week. So if you started a circuit last week, bring it again tonight so that we can finish it off. And if you weren’t here last week but would like to try your hand at building the blinker circuit, show up tonight and I will have the parts for you to get started. Experienced solderers (Is that a word?) are encouraged to attend also to provide moral support, dispense sage wisdom, and stamp out any fires.
Next week: Back to Arduino club. We will use the skills discussed so far to make a handful of small (and possibly useful) projects.
Oct. 25, 2017
- Homework problem O7 had some incorrect figures in it. Be sure to download and complete the corrected version of the problem.
Oct. 23, 2017
- The capacitor / inductor homework set is available.
Oct. 19, 2017
- For office hours today, I will be in my Durham office between 1:00 and 2:00. From 2:10 until 4:00, I will be in the Coover 2011 lab room. If you have questions, come see me there.
- Combined Audio/Arduino club tonight. 8:00 p.m. in Coover 2011. The topic is: "Soldering for n00bs".
(Maybe we can call it Soldering Club tonight.) Everyone has been itching “to build stuff”, so we had better get to it.
We will have a bit of a tutorial at the start, and then I will have all the parts needed for soldering a couple of circuits.
I’ll try to have enough for 24 people, which should be more than adequate. Old hands should still consider attending —
you can help teach the rookies and show them some of your tricks and techniques. The Fire Department has been alerted.
If you want to partake in the fun, you should bring your EE 201 lab kit — or at least the tools (wire cutter, wire stripper, needle-nosed pliers, screwdriver). Also bring along a 9-V battery to power the circuits — it's not essential for tonight, but if you want to power your circuits later, you will need one.
Oct 15, 2017
- There is a new section on the lab page that has information regarding this week's lab exam. You should look it over and bring any questions that you have about the lab exam to class on Monday.
Oct 8, 2017
- Homework set 6 is available on the web site.
- Note that there will be no quiz on Monday (10/9).
Oct 6, 2017
- Note: I will not be in my office between noon and 1:00 p.m. today. I will be there between 1:00 and 2:00, if anyone from the afternoon lecture session desperately needs a question answered prior to the exam.
Oct 5, 2017
- Here is the solution to the old exam. Recall that there is not a lot of point trying to understand every detail of this old exam, because tomorrow's exam will not have any of these questions! Also, the solutions that I've provided are probably "overly detailed".
- Note: There will be NO Arduino club meeting tonight. (Or Audio club, either.) You should be studying for your exam! Meetings will resume next week.
Oct 4, 2017
- Solutions for quizzes 5 - 12 are available. Use the "Quizzes" link above to access them.
- Exam review session: tonight in Hoover 1227 (the classroom for the afternoon lecture). Starting at 8:00 p.m. and lasting till whenever.
Oct 2, 2017
Here is Exam 1 from last year, to be used as a practice exam. Attached at the back of the exam is the formula sheet that will be provided to you for our upcoming exam.
Sep 21, 2017
Reminder: Arduino club tonight! On tap: A basic beginner tutorial on using digital outputs and keeping track of time in an Arduino. If you have one, bring your Arduino. I have some extras, if you would like borrow one for tonight. You will also need your laptop (with the Arduino software installed) and a USB cable (type A one end and type B on the other — the cable used for most printers. I do not have extras of these, so you should steal one from your room-mate’s printer to use tonight.)
Sep 19, 2017
- Reminders about the lab make-up times for the Tuesdays sections: Section A will be meeting on Wednesday from 5:00 p.m. until 8:00 in Coover 2011. Section B has two times: Thursday from 5:00 p.m. until 8:00 p.m. in Coover 2011 and Wednesday from 8:00 p.m. to 11:00 p.m. in Coover 2011.
- Note: We will have a slight change in schedule for lecture tomorrow and Friday. Because of the many "day-after-carrer-fair" interviews, the lab make-ups, and other general distractions, we will post-pone the normal Wednesday quiz to Friday this week. Short version: No quiz on Wednesday, quiz on node-voltage on Friday.
Sep 14, 2017
- Reminder: Audio Club tonight — 8:00 p.m. in 2011 Coover. For those that are interested.
- We have received some homework papers that have only answers, with no supporting work included. According to our class policy, those homeworks get only 2 points out of the possible 10. Please make sure that you include enough work on your solutions so that the graders can understand how you arrived at your answers and you can receive full credit for your efforts.
Sep 12, 2017
Note: The quiz on Wednesday will cover equivalent resistances (again), since we have not yet covered voltage/current dividers.
Sep 7, 2017
Reminder: Arduino club tonight. If you are interested. 8:00 p.m. in 2011 Coover.
Sep 6, 2017
IMPORTANT NOTE REGARDING HOMEWORK! There were two typos in the original posting of HW Set 2. The first was in prob B1, where the given value of the resistor voltage was wrong — the correct value is 1.25 V. The second was in Prob B5 (the bridge circuit), where one of the resistor values was missing. Both problems have been fixed — make sure you are using the corrected versions.
Sep 4, 2017
- Homework set 2 is on the web site.
Aug 28, 2017
Here are some links relating to things in mentioned in class last week.
- NIST (National Institute of Standards and Technology). They do all sorts of interesting fundamental science (which requires lots of engineering). It might be a good place to work (or intern) some day.
- Values of fundamental constants as provided by NIST.
- The Great Dying. What will happen to the Earth if atmospheric CO2 continues to increase? We don't have to guess or restort to "alternative facts". We can know what will happen in the future, because it has happened in the past. It's not a good story for humans (or most other types of life).
Aug 27, 2017
- Homework set 1 is on the web site.
- Note that the quiz on Monday will be over charge and current — again — rather than power and energy. So, focus on those practice problems for Monday.
July 29, 2017
This is the web site for EE 201, Fall 2017.