An air traveller’s innocuous question posted on Reddit brought plenty of laughter and some genuine worry when it went viral on a r/AirTravelIndia subreddit. “Will this cause suspicion to airport security ? Its just a sensor based Arduino School project. I hope this wont cause any problems for us. I am also carrying a handheld AQI meter with me (sic)," the user asked. At first glance, it appeared to be a query that required little thought. But strict air safety guidelines, especially in the country, posed a massive question mark in the heads of the online community.

What is an Arduino project, you ask?

The course provides middle school, high school, and university students with kits, online courses, and tools to master electronics, coding, robotics, and IoT through fun, project-based acti

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