Bookmarks and Links (Anything I find Useful or Interesting)

Barely organized bookmarks and links, sometimes used as a temporary place for interesting links I’ve just learned of, awaiting further sorting and categorizing.

Note that this table of contents is pretty rough and there may be overlap. For instance, an Arduino robot might be under “Arduino” or under “Robotics”.

Android IOIO
Zener Diodes
Batteries
Robotics
Arduino
LEDs
Motors
MOSFETs
Audio and Sound
Learning Electronics
Antique Electronics
Metal Working
Not Yet Indexed

Android IOIO

http://www.sparkfun.com/products/10748

Zener Diodes

http://sound.westhost.com/appnotes/an008.htm

Batteries

http://www1.duracell.com/procell/chemistries/default.asp

Robotics

Society of Robots
Robot Room
http://www.leang.com/robotics/ nice use of CDROM as wheel

Arduino

Arduino Analog Comparator
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1241680042

http://www.arduino.cc/playground/Learning/AtmegaStandalone
http://www.arduino.cc/en/Main/StandaloneAssembly

arduino or software synthesis
http://elm-chan.org/works/mxb/report.html

Arduino
Arduino-Python 4-Axis Servo Control at Principia Labs
Another Arduino blog
Engbedded Atmel AVR Fuse Calculator
ATMega tutorial at DIY Drones
USB host shield
http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-for-arduino/

Feeds for Arduino/Processing combos
pachube

arduino stepper motors
http://www.tigoe.net/pcomp/code/circuits/motors/stepper-motors

arduino shields
http://www.shieldlist.org/
Rainbowduinos from seeedstudio is basically a 8×8 led matrix driver with a I2C interface.
http://www.neophob.com/2010/07/rainbowduino-fun-aka-neorainbowduino/
video experimentors shield:
http://nootropicdesign.com/store/index.php?main_page=product_info&cPath=1&products_id=23

DF Robotics Motor Shield for Arduino

arduino and max
http://www.cycling74.com/forums/topic.php?id=26623
http://cycling74.com/toolbox/sensorbox/

arduino tutorials
http://tronixstuff.wordpress.com/tutorials/

arduino sensors
http://www.ladyada.net/learn/sensors/

arduino interrupts
http://www.dave-auld.net/index.php?option=com_content&view=article&id=107:arduino-interrupts&catid=53:arduino-input-output-basics&Itemid=107

using photointerrupters
http://www.embedded.arch.ethz.ch/Examples/PhotointerrupterCountInterrupt
http://www.embedded.arch.ethz.ch/Examples/Photointerrupter
http://www.embedded.arch.ethz.ch/Examples/TimerDcMotorBackground

timers and pwm
http://arduino.cc/en/Tutorial/SecretsOfArduinoPWM

function for changing pwm frequency
http://www.arduino.cc/playground/Code/PwmFrequency

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1152547089

arduino projects
http://www.creativeapplications.net/processing/spotify-player-processing-objects/
http://www.practicalarduino.com/projects
http://hacknmod.com/hack/top-40-arduino-projects-of-the-web/
http://zedomax.com/blog/2010/02/16/top-10-diy-arduino-projects-and-how-to-tutorials/
http://hubpages.com/hub/CBJamosArduinos
http://www.arduinoprojects.com/
http://www.coolcircuit.com/gadgets/category/arduino/
http://hacknmod.com/hack/high-speed-photography-how-to-trigger-using-arduino/
http://www.instructables.com/id/Lo-fi-Arduino-Guitar-Pedal/step7/Variations-and-Notes/
very nice light panels or coffee table
http://www.instructables.com/id/Yet-Another-Daft-Punk-Coffee-TableDisplay/?ALLSTEPS&contest=true
http://www.coolcircuit.com/gadgets/category/arduino/page/1/

ham and arduino

http://kengracey.com/Home/RadioCommunication/tabid/73/Default.aspx
RF Communication Between BASIC Stamps Using 2-meter HT Radios

LEDs

LED
The Zetex ZXSC380 is a tiny surface mount IC, with just three pins, that needs just a single inductor to step the voltage up to drive a LED. The ZXSC380 controls the output current so that no resistors are required.

Motors

How Motors Work

http://www.solarbotics.net/starting/200111_dcmotor/200111_dcmotor2.html
ww1.microchip.com/downloads/en/DeviceDoc/41233B.pdf

http://www.clrwtr.com/Single-Phase-Electric-Motors-Characteristics-Applications.htm

http://www.google.com/url?sa=t&source=web&cd=6&ved=0CEQQFjAF&url=http%3A%2F%2Fwww.afcap.co.za%2Fmanual%2FPart2.pdf&rct=j&q=how%20to%20select%20motor%20start%20capacitor&ei=fJWTTdWeDpO8sQP82cHUBQ&usg=AFQjCNGgiKGVFYSUGEHjKgliYKI_KgImhA&sig2=hlAGdhzWen0_4PNNg_pb6A&cad=rja

http://cr4.globalspec.com/thread/8136/Capacitor-size-for-split-phase-motor-starting

http://www.electricneutron.com/electric-motor/single-phase-capacitor-sizing

http://cr4.globalspec.com/thread/17777/How-Select-Capacitor-for-Single-Phase-230-Volt-Motor

MOSFETs

http://www.physics.udel.edu/~watson/scen103/mos5.gif
http://www.electro-tech-online.com/general-electronics-chat/12029-controlling-p-channel-mosfet-mcu.html
http://www.electronics-tutorials.ws/transistor/tran_7.html
http://digital-diy.com/General-Electronics/digi-tip-logic-level-fets-p-channel.html
http://homepages.which.net/~paul.hills/SpeedControl/Mosfets.html
http://www.electronics-tutorials.ws/transistor/tran_6.html

MOSFETs, Motor Controllers, and H-Bridges

http://www.solarbotics.com/search/?query=motor+controller&x=0&y=0
http://www.solarbotics.com/products/k_cmd/
http://www.societyofrobots.com/member_tutorials/node/166
http://www.societyofrobots.com/robotforum/index.php?topic=6544.0
http://forum.allaboutcircuits.com/image_cache/
httpi44.tinypic.com1zq65pc.jpg
http://forum.allaboutcircuits.com/image_cache/httpi44.tinypic.com1zq65pc.jpg
http://tech.groups.yahoo.com/group/SeattleRobotics/message/6233?threaded=1&var=1&p=1
http://www.linear.com/product/ltc1155#descriptionSection
http://www.modularcircuits.com/h-bridge_secrets1.htm this is excellent!!
http://www.cadvision.com/blanchas/hexfet/np-s.htm
http://www.cadvision.com/blanchas/hexfet/
http://roko.ca/robotics/h-bridge-fundamentals/3
http://robotechno.us/high-current-h-bridge-with-mosfet.html
DF Robotics Motor Shield for Arduino

Audio and Sound

Filter design tool for all sorts of filters, passive and active

Learning Electronics

Basic Electronic Tutorials – Excellent!
How to use the Oscilloscope from Tektronix

Antique Electronics

Antique Radio Archives: “Resources for what are often obscure items, things that may not have mass appeal, but items that will be of value when the need for them arises.” Great collection of magazines, books, and articles from the early days of radio electronics.

http://www.crystalradio.net/
http://www.midnightscience.com/
http://www.squidoo.com/my-radio-projects#module158395636
http://midnightscience.com/kits.html
http://www.antiquewireless.org/otb/hartley0709.htm
http://bellsouthpwp2.net/w/u/wuggy/radproj.htm
http://makearadio.com/crystal/index.php
http://www.qsl.net/wb5ude/kc6wdk/receiver.html
http://www.antiquewireless.org/otb/hartley0709.htm
http://www.eleccircuit.com/light-to-sound-wave-receiver-using-ic-741/
http://www.buildcircuit.com/am_receiver/
http://1n34a.com/

Metal Working

<a href=”http://www.lirec.eu/ mystery link

Good videos from MIT on metalwork shop training. Covers: Drill press Mill Grinders/deburrers/sanders lathe http://techtv.mit.edu/collections/ehs-videos/videos

Not yet indexed

How we live with digital and interactive companions

Interesting electronic gadgets

WiFi Module with SPI interface to 8 bit MCU

Interesting blogs

bldgblog.blogspot.com
GetLoFi Circuit Bending Synth DIY

Software Defined Radio

ARRL list of SDR documentation including great beginner tutorials

Circuits for AEII

Op amp radio
Wacky Sound Generator from Music From Outer Space
The Squirrel Monkey is a simple one-tube guitar practice amp
The Fuzzy Firebottle Guitar Distortion Pedal is a really interesting distortion circuit running the tube at 30v.

Misc Audio Circuits
Simple Audio Preamp
Nice collection of Audio Amplifiers with good descriptions
Music From Outer Space. DIY synth, incredible graphics, yummy craziness.
Small Bear Electronics. Great tutorials, schematics, and kits for guitar effects.
Tonepad: A resource for DIY music
Open Circuits is a wiki for sharing open source electronics
LM339 based LED meter

Phasers, Comb Filters, and Flangers
Guitar Phaser at 4QD-TEC. Messy site, but one of the few to have phaser schematics
DIY ring modulator consisting of two transformers and 4 diodes. Definitely one I should try.
Good article About comb filtering, phase, shift, and polarity reversal
Digital comb filter built with an ATmega168
The technology of phase shifters and flangers

Unsorted
Excellent article on the theory and practice of audio filter design
Phozer: LFO and rocker pedal twin-T wah
Beginning Embedded Electronics tutorials at SparkFun
Transistor tester with excellent theory
Simple looking DIY Vacuum Tube Microphone Preamp / Direct Box Project
Great page explaining the theory of op amps with simple working animation
A ton of circuits, reasonably well documented
Physical Audio Signal Processing at CCRMA
Excellent collection of well documented headphone amplifiers, tube and solid state, beginners through advanced.
Great page about general electronics with many projects around model railroading
The Squirrel Monkey One Tube Guitar Amp, part of FC’s Electronic Circuits
Jon’s Electronic Projects for Hobbyists contains many tube projects
Build your own clone: kits and parts for DIY guitar effects but no circuits
Tube Audio Design by Bruce Rozenblit

Computer stuff
Rsync article at Linux Journal
Configuring wifi card in master mode

All Power Labs
Battery terminals and other large gauge lugs including a distribution junction taking input on a 3/8″ battery stud and distributing it to 8 #8 studs
wiki

N900
nokia n900 forum
maemo garage

Groups, clubs, events, forums, lists
RHoK & OpenHackDay 2010
Lift local events

general circuits

http://www.coolcircuit.com/more.php

sound circuits and sites

basic 741 electret mic preamp
http://www.electrokits.com/Audio-Amplifiers/Electret-Microphone-Amplifier
http://www.anti-theory.com/
great section on circuit bending

http://members.shaw.ca/roma/train.html Diesel engine and Horn sounds
VFD ring modulator
http://www.electronicpeasant.com/projects/ringmod/trmod.html

square wave generator
http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/square.html
http://www.circuitstoday.com/square-wave-generator-using-ua-741

741 simple light to sound wave
http://www.eleccircuit.com/light-to-sound-wave-receiver-using-ic-741/

fancier light to sound with photodiode
http://www.5volt.eu/archives/63

forrest mims version (basic 741 plus amp)
http://books.google.com/books?id=STzitya5iwgC&pg=PA49&lpg=PA49&dq=light+frequency+to+sound+741&source=bl&ots=Ld9tHwlIuH&sig=fL_3z9ubGgNeoc5esXi19yIDUBQ&hl=en&ei=SCNvTcygMY-isAPf0cy6Cw&sa=X&oi=book_result&ct=result&resnum=8&ved=0CEkQ6AEwBw#v=onepage&q=light%20frequency%20to%20sound%20741&f=false

misc

Schmit trigger built out of a 741
http://www.circuitstoday.com/schmitt-trigger-circuit-using-ic-ua-741
transistor tester which explains a ton of practical stuff and includes an
optional arduino interface
http://www.thebox.myzen.co.uk/Hardware/Transistor_Tester.html

synthesizer circuits and sites

http://www.squidoo.com/buildASynth
simple circuit with 4047 and 4017
http://compiler.kaustic.net/machines/vanishing-moon.html

567 ring modulator on getlofi
http://www.getlofi.com/wp-content/uploads/tdomf/4211/noise567_604.gif
works nicely!

OLPC sensors

http://walterbender.org/?p=393
http://wiki.laptop.org/go/Making_XO_sensors

555

http://talkingelectronics.com/projects/50%20-%20555%20Circuits/images/LED-Dimmer.gif
http://talkingelectronics.com/projects/555/Page1-555.html
4 very long pages about 555; excellent detailed theory as well as many
examples. PWM motor speed control came from here.
http://www.kpsec.freeuk.com/555timer.htm
excellent
another excellent page
http://talkingelectronics.com/projects/OP-AMP/OP-AMP-2.html

festivals, shows, conferences, events, and contests

https://wiki.mozilla.org/Drumbeat/events/Festival/Barcelona/OpenRaval
http://www.geekybynature.com/

schools, courses, and programs

http://firmata.org/wiki/Examples

websites and blogs for inspiration

http://patrickboehner.blogspot.com

huge lists of links

Steve Wilson’s links
http://userwww.sfsu.edu/~swilson/

the case for tinkering

Sir Ken Robinson: Do schools kill creativity? (TED talks)

ultrasonic distance measuring

http://www.leang.com/robotics/info/articles/minison/minison.html
http://basicrobot.blogspot.com/2009/03/ultrasonic-sensor-circuit-1.html

misc robotics and nice website

http://www.robotroom.com/index.html

general inspiration and ideas

http://www.creativeapplications.net/category/processing/

IR heart beat detection

http://www.slotforum.com/forums/index.php?showtopic=28367&hl=lordjw&st=15
to amplify signal from phototransistor

graph paper generator

http://incompetech.com/graphpaper/logarithmic/
for microphone :
document size 11 * 8.5
x 4 cycles
y 1 cycle
black

learning electronics

http://www.st-andrews.ac.uk/~www_pa/Scots_Guide/intro/electron.htm
http://sound.westhost.com/projects.htm
http://101science.com/transistor.htm
how transistors really work
http://amasci.com/amateur/transis.html
Understanding Electronics Components list of all things
http://www.mikroe.com/old/books/keu/00.htm
especially how capacitors work, markings, and example radio circuits
http://www.mikroe.com/old/books/keu/02.htm

intro to 741
http://www.circuitstoday.com/introduction-to-ua-741-op-amp

intro to audio oscillators
http://www.circuitstoday.com/audio-oscillators

phase shift oscillators
http://www.circuitstoday.com/phase-shift-oscillator

intermediate transistor amplifier circuits using common transistors
http://www.circuitstoday.com/few-transistor-amplifier-circuits

circuits on alternative materials (including wearables)
http://web.media.mit.edu/~plusea/
http://web.media.mit.edu/~plusea/?category_name=traces-and-connections

my portfolio

plenty of videos on chips’ facebook page
srl references
My second Arduino class at The Exploratorium: http://www.flickr.com/photos/tinkering_studio/sets/72157626600354722/with/5665744126/

linux

http://www.linux.com//learn/tutorials/393001-10-most-popular-linuxcom-stories-in-2010
http://www.linux.com/learn/tutorials/290879-beginners-guide-to-nmap

lifehacker

30 must-have extensions, although it’s not on the lh website suspicious?
https://addons.mozilla.org/en-US/firefox/collections/gallegr1/Lifehacker_s_Must_Have_Extensi/

n900

SyncEvolution on a Nokia N900
http://www.mayrhofer.eu.org/n900-syncevolution

history and culture

Muslim’s Achievements in Science & Technology (700-1300)
http://metaexistence.org/timeline1.htm

Interaction design

http://www.nastypixel.com/instantsoup/website/cover/

arabic

translate arabic writing to english
http://translate.reference.com/translate?query=%D8%A4lazim&src=ar&dst=en&v=1.0

todo
—-
print this page
http://www.linux-mag.com/id/8349/

LEDs

Rainbowduinos from seeedstudio is basically a 8×8 led matrix driver with a I2C interface.
very nice light panels or coffee table
http://www.instructables.com/id/Yet-Another-Daft-Punk-Coffee-TableDisplay/?ALLSTEPS&contest=true
basic 555 pwm
http://talkingelectronics.com/projects/50%20-%20555%20Circuits/images/LED-Dimmer.gif
constant current drivers
http://projects.dimension-x.net/archives/66

Inspiration for websites, syllabi, resumes, bios

http://www.monkeyview.net/kal@seemen.org/sfsu_class/index.vhtml
http://www.weststarland.com/ (ulrika)

things to read when i have time

http://www.alternet.org/news/149849/will_2011_bring_the_end_of_the_israeli_state_as_we_know_it?page=entire

open universities

http://p2pu.org/
http://worlduniversity.wikia.com/wiki/World_University
http://ftacademy.org/materials

counters for marcel

http://www.reuk.co.uk/Timer-Circuits-With-4060B.htm
http://www.reuk.co.uk/Repeat-Timer-Circuit.htm
https://homepages.westminster.org.uk/electronics/4017.htm

my classes

http://www.cca.edu/academics/summer/science
http://sfsudaivcd.blogspot.com/2011/04/summer-2011-course-with-great-elective.html
http://oi.sfsu.edu/cgi-bin/sims/classsch.details?row_id=AAASGQABPAAB0/NAAG&openu=U&CRSADMIN=E

741 stuff (although it’s also distributed in other categories)

http://talkingelectronics.com/projects/OP-AMP/OP-AMP-1.html
excellent and very simple with good animation

microphone preamsp

http://www.electro-tech-online.com/general-electronics-chat/31269-lm324-7809-problem.html

Pyo: python dsp module written in C so it’s fast

Flying platforms

http://quadframe.com/

Conferences, workshops, exhibitions

http://pervasiveconference.org

Sources of Modules, Kits, or Components for Makers

http://shop.snootlab.com/

Barely organized bookmarks and links, sometimes used as a temporary place for interesting links I’ve just learned of, awaiting further sorting and categorizing.

Note that this table of contents is pretty rough and there may be overlap. For instance, an Arduino robot might be under “Arduino” or under “Robotics”.

Robotics
Arduino
LEDs
Motors
MOSFETs
Audio and Sound

Robotics

Society of Robots
Robot Room
http://www.leang.com/robotics/ nice use of CDROM as wheel

Arduino

http://www.arduino.cc/playground/Learning/AtmegaStandalone
http://www.arduino.cc/en/Main/StandaloneAssembly

arduino or software synthesis

http://elm-chan.org/works/mxb/report.html

Feeds for Arduino/Processing combos
pachube

arduino stepper motors

http://www.tigoe.net/pcomp/code/circuits/motors/stepper-motors

arduino shields

http://www.shieldlist.org/
Rainbowduinos from seeedstudio is basically a 8×8 led matrix driver with a I2C interface.
http://www.neophob.com/2010/07/rainbowduino-fun-aka-neorainbowduino/
video experimentors shield:
http://nootropicdesign.com/store/index.php?main_page=product_info&cPath=1&products_id=23

DF Robotics Motor Shield for Arduino

arduino and max

http://www.cycling74.com/forums/topic.php?id=26623
http://cycling74.com/toolbox/sensorbox/

arduino tutorials

http://tronixstuff.wordpress.com/tutorials/

arduino sensors

http://www.ladyada.net/learn/sensors/

arduino interrupts

http://www.dave-auld.net/index.php?option=com_content&view=article&id=107:arduino-interrupts&catid=53:arduino-input-output-basics&Itemid=107

using photointerrupters

http://www.embedded.arch.ethz.ch/Examples/PhotointerrupterCountInterrupt
http://www.embedded.arch.ethz.ch/Examples/Photointerrupter
http://www.embedded.arch.ethz.ch/Examples/TimerDcMotorBackground

timers and pwm

http://arduino.cc/en/Tutorial/SecretsOfArduinoPWM

function for changing pwm frequency
http://www.arduino.cc/playground/Code/PwmFrequency

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1152547089

arduino projects

http://www.creativeapplications.net/processing/spotify-player-processing-objects/
http://www.practicalarduino.com/projects
http://hacknmod.com/hack/top-40-arduino-projects-of-the-web/
http://zedomax.com/blog/2010/02/16/top-10-diy-arduino-projects-and-how-to-tutorials/
http://hubpages.com/hub/CBJamosArduinos
http://www.arduinoprojects.com/
http://www.coolcircuit.com/gadgets/category/arduino/
http://hacknmod.com/hack/high-speed-photography-how-to-trigger-using-arduino/
http://www.instructables.com/id/Lo-fi-Arduino-Guitar-Pedal/step7/Variations-and-Notes/
very nice light panels or coffee table
http://www.instructables.com/id/Yet-Another-Daft-Punk-Coffee-TableDisplay/?ALLSTEPS&contest=true
http://www.coolcircuit.com/gadgets/category/arduino/page/1/

ham and arduino

http://kengracey.com/Home/RadioCommunication/tabid/73/Default.aspx
RF Communication Between BASIC Stamps Using 2-meter HT Radios

LEDs

Motors

How Motors Work

http://www.solarbotics.net/starting/200111_dcmotor/200111_dcmotor2.html
ww1.microchip.com/downloads/en/DeviceDoc/41233B.pdf

http://www.clrwtr.com/Single-Phase-Electric-Motors-Characteristics-Applications.htm

http://cr4.globalspec.com/thread/8136/Capacitor-size-for-split-phase-motor-starting

http://www.electricneutron.com/electric-motor/single-phase-capacitor-sizing

http://cr4.globalspec.com/thread/17777/How-Select-Capacitor-for-Single-Phase-230-Volt-Motor

MOSFETs

MOSFETs, Motor Controllers, and H-Bridges

Audio and Sound

sound circuits and sites

basic 741 electret mic preamp
http://www.electrokits.com/Audio-Amplifiers/Electret-Microphone-Amplifier
http://www.anti-theory.com/
great section on circuit bending

http://members.shaw.ca/roma/train.html Diesel engine and Horn sounds
VFD ring modulator
http://www.electronicpeasant.com/projects/ringmod/trmod.html

square wave generator
http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/square.html
http://www.circuitstoday.com/square-wave-generator-using-ua-741

741 simple light to sound wave
http://www.eleccircuit.com/light-to-sound-wave-receiver-using-ic-741/

fancier light to sound with photodiode
http://www.5volt.eu/archives/63

misc

synthesizer circuits and sites

http://www.squidoo.com/buildASynth
simple circuit with 4047 and 4017
http://compiler.kaustic.net/machines/vanishing-moon.html

567 ring modulator on getlofi
http://www.getlofi.com/wp-content/uploads/tdomf/4211/noise567_604.gif
works nicely!

unsorted

Women in Technology

http://techgirlz.org/
http://www.techbridgegirls.org/AboutUs.aspx
http://www.mztek.org/

Good pictures of how to use a mouse wheel to sense rotation direction and speed

http://www.lushprojects.com/cyclepong/index.html

Water fountain and droplet art

http://hackaday.com/2011/03/11/water-droplet-sculpture-using-leds-and-arduino/
http://www.electronics-lab.com/blog/?p=10062

How we live with digital and interactive companions

http://www.lirec.eu/

Metal Working

Good videos from MIT on metalwork shop training. Covers: Drill press Mill Grinders/deburrers/sanders lathe http://techtv.mit.edu/collections/ehs-videos/videos

Interesting electronic gadgets

WiFi Module with SPI interface to 8 bit MCU

Interesting blogs

bldgblog.blogspot.com
GetLoFi Circuit Bending Synth DIY

Software Defined Radio

ARRL list of SDR documentation including great beginner tutorials

Computer stuff
Rsync article at Linux Journal
Configuring wifi card in master mode

All Power Labs
Battery terminals and other large gauge lugs including a distribution junction taking input on a 3/8″ battery stud and distributing it to 8 #8 studs
wiki

N900
nokia n900 forum
maemo garage

Groups, clubs, events, forums, lists
RHoK & OpenHackDay 2010
Lift local events