Hardware

	Arduino Pro Mini 328 (x2) http://www.sparkfun.com/products/9218 $18.95 18mm x 33mm, weighs less than 2 grams ATmega328 running at 16MHz with external resonator DC input 5V to 12V USB connection off board
	Bluetooth Mate Gold (x2) http://www.sparkfun.com/products/9358 $64.95 Work directly with Arduino Pro Mini 25mA power consumption 2.4 ~ 2.524 GHz frequency 3.3V - 6V operating voltage Serial communications: 2400 - 115200 bps
	Push Button Start Kit Ignition http://www.amazon.com/Button-Ignition-Engine-Starter-Igniter/dp/B004LSXL5S $19.95 1.32in diameter, 1.85in overall length, 1.75in height Connects to 12V ignition
	MR 513 Alcohol Gas Sensor http://www.futurlec.com/Gas_Sensors.shtml $12.90 16mm diameter, 10mm high Working Voltage: 3.0V Response time < 20s
	MD 0550 Wind Sensor http://shop.moderndevice.com/products/wind-sensor $17.00 Dimensions: .68? × 1.590? × .25? Supply Voltage: 4 - 10 volts
	Alcohawk Slim Digital Alcohol Breath Tester http://www.amazon.com/Alcohawk-Digital-Alcohol-Breath-Tester/dp/B000FJEQYM/ $35.00 Provides digital BAC reading 0.000% - 0.400% BAC, with +/- 0.01% at 0.02% BAC sensor accuracy
	4N36M-ND Optoisolator http://search.digikey.com/us/en/products/4N36M/4N36M-ND/400352 $0.58 Current - DC Forward: 60mA Vce Saturation (Max): 300mV
	3-Pin SPDT Toggle Switch http://www.pololu.com/catalog/product/1407 $1.75 Single-pole, double-throw (SPDT) toggle switch 5 A at 125 VAC and 2 A at 250 VAC
	Red, Green LEDs $0.00
	Bodhilabs VPack 5V 2-AAA Battery Holder with 5V Regulator http://www.pololu.com/catalog/product/783 $10.95 Takes two AAA cells 5V step-up regulator, power source for 5V circuits Provides up to 200 mA (typical; 500 mA max) Leads coming off the regulator are terminated by a 0.100" 2-pin female connector
	Ultra Pro 50-Count 2-Piece Plastic Box 2-Pack http://www.amazon.com/Ultra-Pro-50-Count-2-Piece-Plastic/dp/B0002TT3KW/ $5.07 Plastic box, holds 50 cards, serves as container for device See-through

• Android Client

• Bluetooth