STEM In Action: The Universal Thermometer
Temperature is everywhere — in the classroom, in the kitchen, and in the lab — but converting between Celsius, Fahrenheit, and Kelvin can sometimes be confusing. To make those conversions instant and visible, Grade 6 students of Mayoor Private School - Ryan Veera Kumar, Vasudev Subhash, Jared Aneesh Grigary - designed The Universal Thermometer , a compact Arduino-based device that measures temperature and displays it simultaneously in °C, °F and K . Using a DS18B20 temperature sensor connected to an Arduino and an I²C LCD, the students programmed the system to read ambient temperature in Celsius, calculate the equivalent Fahrenheit and Kelvin values, and show all three readings on the LCD screen. The result is a handy, real-world tool for quick classroom demonstrations, experiments, and everyday curiosity — for example, converting 30°C to Fahrenheit at the press of a button. The project also highlighted how closely temperature ties into mathematics. The team used simple...