Intermediate
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Help Button by geralt (Public Domain)


Helpful Websites

  • Arduino World Reference Files: GitHub repository that contains all code files, schematics, etc from projects listed on this site.
  • Arduino Language Reference: This page contains all documentation for built-in Arduino software functions.
  • Fritzing: All breadboard layouts and schematics on this site were created with Fritzing, an open-source software that lets you document your Arduino projects.
  • Main Arduino site: If you want more information about Arduino, check their main website.
  • Bootstrap: This website was built using the Bootstrap framework. Download bootstrap to get started on your own Bootstrap project.

Components

Where to find and buy components used in projects on this site. In general, Jameco, Digikey, and Mouser are great for cheap wholesale parts, Radioshack or Fry's are good stores if you need something fast, and Sparkfun and Adafruit have more specialized shields and kits.

Component Projects Required Price Where to Buy Notes
Arduino Uno All projects $25 Arduino site, Sparkfun, Adafruit
Breadboard All projects $3-10, depending on size Sparkfun, Digikey, Jameco, Mouser Pay attention to number of points - a standard large breadboard has around 830.
Jumper Wires All projects $5-10, depending on number Sparkfun, Adafruit, Jameco, Digikey, Mouser You'll need a LOT of wires - don't shy away from getting hundreds in multiples sizes.
Resistors Almost all projects Very cheap; buy in bulk Sparkfun, Jameco You'll need 100, 330, and 10k for sure. Get 1/4 Watt resistors.
Single-Color LEDs Blink, Jeopardy, Motion Detector, Keyboard, Stopwatch Less than 50 cents each - buy in bulk Sparkfun Sparkfun is the only site listed because you can buy a pack of multicolored LEDs instead of bulk single-color LEDs.
RGB LED Dim the Lights, Mood Light $2 Sparkfun, Jameco Make sure to buy Common Cathode/Ground.
Pushbutton switch Jeopardy, Keyboard, Karaoke, Random Drawing Robot, Spinner 35 cents Sparkfun
Speaker/Piezo Buzzer Harmonica, Motion Detector, Keyboard, Karaoke, Stopwatch $2 Sparkfun, Jameco, Digikey Get a speaker with 8-ohm impedance.
Photoresistor Dim the Lights, Motion Detector $1.50 Sparkfun, Jameco, Digikey
Potentiometer Harmonica, Scrolling Message, Karaoke, Stopwatch $1 Sparkfun, Adafruit Get a 10k potentiometer.
LCD Display Scrolling Message, Karaoke, Stopwatch $5-15 Sparkfun, Adafruit, Jameco, Digikey Get a 16x2 LCD display. You can also find a nice kit from Adafruit that only uses 2 Arduino pins here.
Standard Servo Motor Random Drawing Robot Normal: $15; Micro: $6 Sparkfun, Adafruit (micro), Adafruit (normal), Jameco (micro), Jameco (normal) Make sure you're getting standard and not continuous rotation. Micro and Normal refer to size.
Temperature Sensor (TMP36) Mood Sensor $1.50 Sparkfun, Adafruit, Jameco, Digikey, Mouser If you can't find a TMP36, TMP35 or 37 are almost equivalent, just with slightly different math.
Transistor (PN2222) Spinner 10-20 cents Sparkfun, Adafruit, Jameco, Digikey If you can't find PN2222, you can use another similar transistor.
Diode (1N4001) Spinner 10-15 cents Sparkfun, Adafruit, Jameco, Digikey, Mouser
DC Motor Spinner $3-5 Adafruit, Jameco, Digikey Your motor should have an operating range that's closer to 5-10 than 0-5.



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