Gas leak detector using the MQ2 sensor on Maker NANO. The MQ-2 Gas sensor can detect or measure gasses like LPG, Alcohol, Propane, Hydrogen, CO, and even methane. For this project, we build a gas leak detector to check if there is a gas leak and it will give an alarm sound when the sensor is triggered. Watch this video to know how to make a gas detector using the MQ2 gas sensor on Maker NANO. ⌨️Software : 1️⃣ Arduino IDE 💻Tutorial: https://tutorial.cytron.io/2020/09/18/gas-detector-using-mq2-se