Boozeduino using arduino




Now with more LED.

Arduino mega powered breathalyser using the MQ-3 sensor.   A relative gauge for judging how intoxicated you are.
NOT TO BE USED AS MEANS OF BREATHALYZING NEVER DRINK AND DRIVE.
This is more of a device to encourage one to drink more. The MQ-3 can’t achieve the accuracy to register exact BAC.
And It behaves weirdly. Sensitive to temperature and humidity. This is purely for fun.
Boozeduino




Links

http://nootropicdesign.com/projectlab/2010/09/17/arduino-breathalyzer/
http://www.danielandrade.net/2010/03/07/building-an-breathalyzer-with-mq-3-and-arduino/
http://www.gfxhax.com/drinkshield/drinkshield-coding/
http://www.sparkfun.com/datasheets/Sensors/MQ-3.pdf
http://nootropicdesign.com/toolduino/ Awesome tool for this, made testing MQ-3 analog levels a snap.

Intro
My first project, instructable, First everything. I’m a total noob and my main goal was to not burn out any chips. I got an Uno early in January and my girlfriend got me an MQ-3(among other goodies) for Valentines day. I had blinked and breadboarded but hadn’t tried a complete project. Here it goes…

Step 1: Parts & tools

PARTS LIST

1x Arduino+Mega+2560  $50  Liquidware     *Great Price*
4x 5mmClearBlue Led  $5 Sure electronics
18x 5mmGreenLed  $4 Adafruit
6x 5mmRedled  $4 Adafruit
10x 5mmYellowLed  35cent/each Sparkfun
1x MQ-3 Alcohol Gas Sensor  $5 Sparkfun
1x Drilled PCB for leds   $3 Radioshack
1x Power supply PCB for MQ-3  $2 Radioshack
1x 7805 Voltage Regulator  $2 Radioshack
2x 10uF capacitors
50x 250ohm resistors
1x Project Box  $5 RadioShack
4x #4 Machine Screws  $2 RadioShack
2x 9V Snap Connectors  $3 for 5 Radioshack
1x Really long heat shrink tubing or cord with 4 wire  $2 Local store
1x Cheap microphone housing(Rockband)  $Salvaged
1x Mic holder  $5
1x On/off Switch
1x spool of solder
1x alcohol hand sanitizer
1x pieces of velcro for mounting
1x tube of adhesive
Lots of wire in multi colors

Tools

Solder Iron
Heat Shrinker(Blowdryer or Lighter at worst)
Multimeter
Helping Hands
Usb cable
Arduino IDE 021
Dremel and/or Drill
3/8″ bit
Flathead screwdriver

Alot of stuff for a newbie but if you been at this a little bit, you’ve got most of these things, minus the MQ-3.  You could use any number of other project boxes, more or less LEDs.  This is a real flexible project.

Step 2: The code

Share

Now with more LED.

Arduino mega powered breathalyser using the MQ-3 sensor.   A relative gauge for judging how intoxicated you are.
NOT TO BE USED AS MEANS OF BREATHALYZING NEVER DRINK AND DRIVE.
This is more of a device to encourage one to drink more. The MQ-3 can’t achieve the accuracy to register exact BAC.
And It behaves weirdly. Sensitive to temperature and humidity. This is purely for fun.

Links

http://nootropicdesign.com/projectlab/2010/09/17/arduino-breathalyzer/
http://www.danielandrade.net/2010/03/07/building-an-breathalyzer-with-mq-3-and-arduino/
http://www.gfxhax.com/drinkshield/drinkshield-coding/
http://www.sparkfun.com/datasheets/Sensors/MQ-3.pdf
http://nootropicdesign.com/toolduino/ Awesome tool for this, made testing MQ-3 analog levels a snap.

Intro
My first project, instructable, First everything. I’m a total noob and my main goal was to not burn out any chips. I got an Uno early in January and my girlfriend got me an MQ-3(among other goodies) for Valentines day. I had blinked and breadboarded but hadn’t tried a complete project. Here it goes……

Step 1: Parts & tools

PARTS LIST

1x Arduino+Mega+2560  $50  Liquidware     *Great Price*
4x 5mmClearBlue Led  $5 Sure electronics
18x 5mmGreenLed  $4 Adafruit
6x 5mmRedled  $4 Adafruit
10x 5mmYellowLed  35cent/each Sparkfun
1x MQ-3 Alcohol Gas Sensor  $5 Sparkfun
1x Drilled PCB for leds   $3 Radioshack
1x Power supply PCB for MQ-3  $2 Radioshack
1x 7805 Voltage Regulator  $2 Radioshack
2x 10uF capacitors
50x 250ohm resistors
1x Project Box  $5 RadioShack
4x #4 Machine Screws  $2 RadioShack
2x 9V Snap Connectors  $3 for 5 Radioshack
1x Really long heat shrink tubing or cord with 4 wire  $2 Local store
1x Cheap microphone housing(Rockband)  $Salvaged
1x Mic holder  $5
1x On/off Switch
1x spool of solder
1x alcohol hand sanitizer
1x pieces of velcro for mounting
1x tube of adhesive
Lots of wire in multi colors

Tools

Solder Iron
Heat Shrinker(Blowdryer or Lighter at worst)
Multimeter
Helping Hands
Usb cable
Arduino IDE 021
Dremel and/or Drill
3/8″ bit
Flathead screwdriver

Alot of stuff for a newbie but if you been at this a little bit, you’ve got most of these things, minus the MQ-3.  You could use any number of other project boxes, more or less LEDs.  This is a real flexible project.

Step 2: The code

@ Code for interfacing Alcohol Gas Sensor MQ-3 with Arduino
@ Code by Daniel Spillere Andrade and Daniel Amato Zabotti
@ [email protected] / [email protected]
@ www.DanielAndrade.net

const int analogPin = 0; // the pin that the sensor wire is attached to
const int ledCount = 32; // the number of LEDs in the bar graph

int ledPins[] = {
53,52,51,50,49,48,47,46,46,45,44,43,42,41,40,39,38,37,36,
35,34,33,32,31,30,29,28,27,26,25,24,23,22};
// Here we have the number of LEDs to use in the BarGraph   53 is green 22 is red

void setup() {

for (int thisLed = 0; thisLed < ledCount; thisLed++) {
pinMode(ledPins[thisLed], OUTPUT);
}}
Boozeduino
void loop() {
//This is the code to light up LED’s
int sensorReading = analogRead(analogPin);

int ledLevel = map(sensorReading, 500, 1023, 0, ledCount);

for (int thisLed = 0; thisLed < ledCount; thisLed++) {

if (thisLed < ledLevel) {
digitalWrite(ledPins[thisLed], HIGH);
}

else {
digitalWrite(ledPins[thisLed], LOW);
} }}

For more detail: Boozeduino




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