Step 1: Gather Your Supplies
- needle-nosed pliers
- any type of wire-cutting pliers
- soldering iron
- solder board
- computer with Arduino software http://arduino.cc/en/main/software
- color-coded wire (5 colors)
- hot glue gun & glue sticks
- 9V battery
- Arduino "Uno" micro-controller w/ USB cord ($30) https://www.sparkfun.com/products/11021
- 9V barrel jack adapter ($4) https://www.sparkfun.com/products/9518
- electret microphone amplifier ($7) http://www.adafruit.com/products/1063
- 76 dB Piezo Buzzer or similar ($4) http://www.radioshack.com/product/index.jsp?produc...
- LED light http://www.radioshack.com/product/index.jsp?produc...
- safety pin
- static-proof plastic bag
Most local electronics/hobbies stores (Radioshack, etc.) will have all the supplies on hand except for the Arduino Uno and 9V battery component, and the electret mic. These can be ordered online, however. Just check out the links.
Step 2: Upload the Code to Arduino
- Grab a computer and check to see if you carry the Arduino software. More than likely you may not. However, it can easily be downloaded to any Windows/Mac computer through this link: http://arduino.cc/en/main/software
- Plug the USB cable provided with your Arduino into the device and the computer.
- Open the Arduino software and open a new document (Click "File_New" in top left corner of screen)
- Upload the following code (simply open the attachment below, then copy the code and paste it onto your newly created page)