System Overview This gas leakage alarm system uses the AT89C51 microcontroller as the controller, the MQ-2 gas sensor as the detection element, and the LM016L LCD display as the output device, along with a buzzer and LED alarm light. When a gas leak is detected, the system displays a warning message on the LCD while … Read more
Nitrogen dioxide (NO₂) is a major nitrogen oxide (NOx) pollutant produced by the combustion of fossil fuels, posing significant threats to the ecosystem and human health, necessitating effective detection methods to monitor NO₂. Current NO₂ detection technologies have limitations in stability and selectivity. According to reports from Maims Consulting, a research team led by Professor … Read more
Gas Sensor (MQ-135) The working principle of the MQ135 gas sensor is based on the adsorption of target gases by semiconductor gas-sensitive materials, which changes the resistance value. The sensor contains a sensitive element and a heater, with the sensitive element typically made of metal oxide semiconductor materials, such as tin dioxide (SnO2). When there … Read more
Research Background The rise of flexible, smart electronics has greatly facilitated the non-invasive and timely tracking of physiological information in remote healthcare. Carefully constructed biomimetic sensitive components are crucial for designing efficient electronic skin with advanced cognitive functions to capture diverse external stimuli. However, realistic imitation, whether in the three-dimensional interlocking hierarchical structure of the … Read more
Understanding Gas Sensors and Logical Operators in Arduino Main Content: 1. Using Gas Sensor (MQ2) 2. Introduction to Logical Operators 3. Suggested Fire Alarm Project If you find it useful, please like, follow, and support! If you have any questions or suggestions, feel free to reply. To learn about the virtual simulation content in the … Read more