Limitations of an Arduino-Based Gas Sensor Mini Project:
- Sensor sensitivity: During initial testing, the gas sensor does not immediately respond to changes in gas concentration, so calibration using the potentiometer on the sensor module is required. In addition, the sensor may be overly sensitive to other surrounding gases, causing less accurate readings.
- Warm-up time: Gas sensors such as the MQ-series require several minutes of warm-up time before they can operate properly. If the device is used before the sensor becomes stable, the detection results may be inconsistent.
- Limited gas types: Each gas sensor is designed to detect specific types of gas. If the gas present differs from the type intended for the sensor, the device will not provide appropriate results.
- Environmental dependency: Factors such as temperature, humidity, and air circulation can affect the accuracy of sensor readings. In overly humid or poorly ventilated rooms, measurement results may vary.
- Reading delay: In some cases, the sensor requires time to detect and process changes in gas concentration, so the system response is not always immediate when gas appears or disappears.
Applications of an Arduino-Based Gas Sensor Mini Project:
- Improving safety: This device is used to detect the presence of hazardous or flammable gases (such as LPG, methane, or carbon monoxide), helping to prevent potential gas leaks and fires.
- Early warning system: The system can provide notifications or alarms when gas levels reach a certain threshold, allowing users to take prompt action before dangerous situations occur.
- Learning sensor technology: This mini project helps users understand how gas sensors (such as MQ-series sensors) work and how they are integrated with an Arduino microcontroller to read environmental data in real time.
- Application in automation systems: The project can be further developed as part of a smart home security system by adding automated features, such as activating fans or alarms when gas is detected.
- Raising environmental awareness: With this device, users can become more aware of the air quality around them and better understand the importance of gas detection in maintaining health and safety.