Categories
- animatronics (12)
- apple (11)
- arduino (179)
- art (41)
- articles (121)
- artificial intelligence (11)
- automation (421)
- avr (205)
- bitcoin (3)
- breadboard (9)
- cameras (57)
- cars (26)
- cell phones (28)
- clothing mods (21)
- console mods (26)
- dangerous (94)
- desktop mods (24)
- embedded (5)
- flying things (54)
- fpga (22)
- gaming creations (108)
- interface (225)
- internet (17)
- laptop mods (6)
- lasers (22)
- linux (7)
- magnetic (3)
- medical (12)
- microcontrollers (51)
- misc projects (152)
- msp (12)
- music (124)
- pic (90)
- projects (23)
- pyroedu (76)
- raspberry pi (26)
- robots (312)
- security (36)
- sensors (307)
- software (200)
- solar (19)
- stamp (9)
- tools (149)
- tutorials (98)
- Uncategorized (45)
- usb (44)
- wireless (256)
Sponsors
Build Like A Pyro!
Find many of the parts used on this site at our favorite online electronics shop
![](../../../img/gadgetory-logo-ad.png)
![](http://www.pyroelectro.com/img/brthtst.jpg)
Building A Breathalyzer
Posted October 12, 2010 by Chris
If you’ve ever been curious about simple breathalyzer theory this project is for you. They used a MQ-3 alcohol gas sensor and an arduino board to build it. The write-up has the software, hardware and a video of the working project in action.
One Response to “Building A Breathalyzer”
Leave a Reply
Currently Hot
![](http://www.pyroelectro.com/img/icons/eyebrows_icon.png)
DIY Animatronic Eyebrows
give your robot some emotion with animatronic eyebrows
![](http://www.pyroelectro.com/img/icons/ir_transmission_icon.png)
Wireless Communication Over IR
ascii serial communication over infrared light streams
![](http://www.pyroelectro.com/img/icons/sn754410_icon.png)
Dual Motor Control – SN754410
quick and cheap dual motor control of speed and direction
![](http://www.pyroelectro.com/img/icons/qew_icon.png)
Wireless Motor Controller
easy wireless control of an led and a motor
![](http://www.pyroelectro.com/img/icons/mini_ir_th_icon.png)
Mini IR Theremin
make your own mini ir theremin
Animatronics
Recent Articles
![](http://www.pyroelectro.com/img/icons/wvlkjsdtgtgntkjewt_icon.png)
Arduino DDS Shield
build your own arduino based analog signal generator
![](http://www.pyroelectro.com/img/icons/dmm_complete_icon.png)
A Digital Multimeter In Review (Tenma 72-7735)
learn about your typical digital multimeter in review
![](http://www.pyroelectro.com/img/icons/annoy_image_icon.png)
The PIC Annoy PCB
build something to annoy your co-workers
![](http://www.pyroelectro.com/img/icons/cron_auto_icon.png)
Automate Your Life With Cron
learn how to use cron for computer automation
![](http://www.pyroelectro.com/img/icons/weather_scrape_icon.png)
Web Scraping For Weather Updates
learn how to use php to scrape the web
![](http://www.pyroelectro.com/img/icons/web-server_icon.png)
Creating A Web Server In Linux
learn how to make a lamp web server in linux
![](http://www.pyroelectro.com/img/icons/steprocker_icon.png)
Stepper Motor Control With A stepRocker TMCM-1110
learn how a commercial stepper motor controller works
![](http://www.pyroelectro.com/img/icons/wireless_ir_prox_icon.png)
Arduino To PIC Wireless Proximity Motor Control
control a motor with a distance sensor wirelessly
![](http://www.pyroelectro.com/img/icons/arduino_pic_comm_icon.png)
PIC to Arduino Wireless Communication via XBee
use xbee to make a pic wirelessly talk to an arduino
![](http://www.pyroelectro.com/img/icons/proximity_ir_icon.png)
Motor Control via Infrared Distance Sensor
control a motor simply by waving your hand
November 17th, 2013 at 11:12 pm
Hi,
I am interesting in building this Breathalyzer and put them on our trucks. How this thing work? What parts do i need to do this. Is it possible only the MQ3 sensor will be installed on the vehicle and will give an output? Then that out put will incorporate on our alarm on the vehicle.
Please advise