Temperaturing Hat - Smart Safety Helmet
A MakeNTU 2021 smart helmet with temperature monitoring, 7-segment display, and RFID access control for pandemic workplace safety
Temperaturing Hat
Temperaturing Hat was built at MakeNTU 2021, NTU’s annual hardware hackathon. During the pandemic, workplaces required constant body temperature tracking to ensure safety, and workers in many industries already had to wear safety helmets at all times. We combined both needs into one: a smart safety helmet that continuously monitors the wearer’s temperature, displays it on a built-in screen, and provides RFID-based access control.
The finished hat — a 7-segment display shows the wearer’s body temperature in real time
How It Works
A temperature sensor mounted inside the hat reads the wearer’s body temperature and displays the reading on large 7-segment LED displays on the front — visible at a glance by both the wearer’s colleagues and supervisors. An RFID module provides contactless access control, allowing workers to tap in and out of restricted areas without removing gloves or touching shared surfaces.
The hardware runs on an Arduino and ESP32, which handles sensor reading, display driving, and wireless communication.
Development
| Building the hardware | Presenting at MakeNTU |
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Live demo — demonstrating the hat’s temperature reading to judges and visitors