Home Assignment 3
-----------------------------------------------------------------------------------------------------------------------Part C - read before Monday Sept 21.
Part B - delivered by Friday Sept 25, 4 pm latest.
Part A - read during the following week.
E-mail:
physcomp09@gmail.com
Subject line:
HA3
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A. Next week we will work with chapter 8, 9 and 10 in your textbook. Check and read through.
B. Exercises
1. What is debouncing, and how do you deal with it?
2. What is blowback or back voltage and how can you prevent it.
3. Blog a Physical Computing project on the course blog.
Choose a physical computing project, concept or service you find interesting. Write a short paragraph
about it and why you find it interesting. Post it under the ‘Inspiration’ category on the course blog
using for example the project’s title as a title for the post. Sign your post with your name (and group
number). Make sure to:
- Link your URLs. URLs should be hyperlinked, preferably embedded in the text.
- Avoid plagiarism. Use quotations when appropriate but do write your own text.
- Credit sources.
Include title, author(s) and link of the publication / project you write about in the body of the text. f.
ex. if you found the project on we-make-money-not-art, write “via we-make-money-not-art” at the
bottom of your post, linking “we-make-money-not-art” to the corresponding post in which you
found the project. Same with images and quotations, always credit the source (write: “photo
courtesy of…” and put quoted person/website between parenthesis right after the quotation).
- Make sure you choose a different project than your classmates’.
There are a zillion physical computing projects around so it should not be a problem. Use the search
function of the blog to make sure you’re not picking a project blogged by another student.
Instructions on how to post on the blog
- Go to http://chalmersphyscomp09.wordpress.com/admin/ or go to
http://chalmersphyscomp09.wordpress.com and click on “Log in” (under “Links”).
- Go to “My Dashboard” -> “Write” (post) / “Add New”
- Write the title of your post, copy and paste your paragraph into the text field or write there directly.
- Choose the category and tag the post with one or two appropriate keywords
- You can add media (photos, videos, sound) by clicking on the small icons next to “Upload / Insert” -> upload
file, name it, choose link (optional), alignment and size ->click on “Insert into post” [not ‘save all changes’)
- To add links: select words, click on the “insert icon” (the chain), write the URL -> click on “Insert”
- Make sure to save changes.
- Preview the post to see that everything looks good
- Publish your post (you can also save and come back later to publish. In that case, your post is in “Manage” ->
“Post”)
- Done.
To view the post: click on “View Posts”, Edit. To edit: click on “Edit post”.
To make further edits, go to “Posts” and “Edit” and look for the title of your post.
If you only want the beginning of your post to appear in the front page of the blog and for people to read the
rest after clicking, click on the “Insert more tag” after the part of the text to be made visible.
[ Wordpress may be slow when many use it simultaneously (?) so try to have it up before Friday ]
Tangible / Kinetic / Haptic
http://www.interactivearchitecture.org/
http://www.tei-conf.org/
Music / Sound
http://www.oddmusic.com/
http://musicthing.blogspot.com/
RFID / NFC / Networked
http://www.nearfield.org
http://www.touchaffordances.org/
http://www.rfid-weblog.com/
Hobby / Hacking
http://blog.makezine.com/archive/arduino/
http://blog.makezine.com/
Wearables / Fashion / Materials
http://www.fashioningtech.com/
http://www.twenty1f.com/
http://www.talk2myshirt.com/blog
http://ambient.media.mit.edu/transitive/chi2009papers.htm
General
http://www.we-make-money-not-art.com
http://www.pixelsumo.com
http://www.interactiondesign.se/blog/
Always check if a site has categories.
For even more sites check the resources section at the course web.
Feel free to use any other source as well.
4. You may also blog some technology, hardware, or material you’ve found interesting this far if you
find it useful to share with your classmates. A category, Tech, is sat up for this purpose.
C. To prepare for Lab3, read:
Relays and transistors
http://www.tigoe.net/pcomp/code/input-output/controlling-highcurrent-circuits
Motors
http://www.tigoe.net/pcomp/code/motors
DC motors
http://www.tigoe.net/pcomp/code/motors/controlling-dc-motors
Servo Motors
http://todbot.com/blog/wp-content/uploads/2006/10/arduino_spooky_projects_class3.pdf
(p. 22-37)
Stepper-motors
http://www.tigoe.net/pcomp/code/category/arduinowiring/51
Serial shifting-out and in
http://www.arduino.cc/en/Tutorial/ShiftOut
http://www.arduino.cc/en/Tutorial/ShiftIn
And browse these sections..
RFID
http://www.parallax.com/Portals/0/Downloads/docs/prod/audiovis/RFID-Reader-v1.2.pdf
http://en.wikipedia.org/wiki/RFID
QR Codes
http://reader.kaywa.com/faq/13
http://en.wikipedia.org/wiki/QR_Code