Created by Kevin Nguyen
This project is currently on-hold and will begin again later in 2015
A breathalyzer is created by using a Raspberry Pi microcontroller and an alcohol sensor. By converting the voltage taken in by the alcohol sensor and converting it to a blood alcohol content (BAC), it allows a user to see the content.
A breathalyzer allows a person to view their BAC to determine if they are past the standard BAC or not. This is widely used by police officers in every country.
Materials Used and Links
- Raspberry PI ( http://www.adafruit.com/products/998 OR http://www.raspberrypi.org/)
- Standard LCD 20x4 ( http://www.adafruit.com/products/198 )
- i2c / SPI character LCD backpack ( http://www.adafruit.com/products/292 )
- ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier ( http://www.adafruit.com/products/1085 )
- T-Cobbler Breakout Kit ( http://www.adafruit.com/products/1105 )
- 16mm Illuminated Pushbutton - Red Momentary ( http://www.adafruit.com/products/1439 )
- 16mm Illuminated Pushbutton - Blue Momentary ( http://www.adafruit.com/products/1477 )
- MQ-3 Alcohol Sensor ( https://www.sparkfun.com/products/8880 )
Special thanks to Matt Lang and Kyle Snihur for their capstone project.
This project is based off their project in the 2014 Capstone course at NAIT.