Don't be intimated by the number of steps. It's one of the least complicated projects I've ever made.
This project was initially developed with the love and support of the Eyebeam OpenLab.
Step 1: Go get stuff
- A MQ-3 Alcohol Sensor (available via Futurlec. Allow a few weeks for shipping from Thailand. Be warned! Ordering anything else from Futurlec may place your order on backorder and leave you waiting a long, long, time without being notified).
- An XLR microphone (you can pick up cheap dynamic XLR microphones intended for karaoke all over the internet)
- An Arduino Decimilla
- Logomatic Data Logger (via Sparkfun)
- An SD Card (can get a cheap 256MB card at Radioshack)
- An SD Card reader
- XLR to 1/4" stereo plug
- A professional-looking audio device (working or not)
- resistors (100K, 10K, 1K)
- a schottky diode
- Acrylic or cardboard
- solid hookup wire
- 9V battery plug
- 9V battery
- isopropyl rubbing alcohol
- a 12 pack and some friends
(other stuff for interfacing Arduino and data logger?)
Mini screwdriver set
Needle nose pliers
Power drill or other rotary tool
Scissors, saw and/or laser cutter (see step 15)