What you'll learn
- Understand how chemiresistor sensors change resistance in response to gas molecules.
- Differentiate between analog concentration readings and digital threshold alerts.
- Learn the importance of the 'pre-heat' phase for gas sensor accuracy.
- Be able to calibrate a sensor using an onboard potentiometer.
What's in the kit
- Arduino UNO
- MQ-3 Alcohol Sensor Module
- Breadboard MB102
- Jumper Wires (M-M)×4
- USB Cable (Type A to B)
Protocol: analog
Related projects
Project 21
MQ-2 Combustible Gas Sensor
Build a smart safety sniffer that detects smoke, LPG, and combustible gases in real-time.
Project 23
MQ-5 LPG / Natural Gas Sensor
Build a smart gas leak detector to spot LPG and Natural Gas leaks before they become dangerous.
Project 20
Dust Sensor GP2Y1014AU0F
Build an air quality monitor that detects microscopic smoke and dust particles using infrared light.