The Raspberry Pi is a credit card-sized computer capable of running full-fledged Linux distributions such as Raspberry Pi OS, ...

Arduino-based occupancy counter with dual ultrasonics, DHT11/MQ-135 environmental sensing, DS3231 RTC timestamping, and SD-card logging. Built for real-time people count monitoring in Manning Hall ...

A simple IoT-based system that monitors room temperature in real-time using a NodeMCU and temperature sensor. Data is sent to a server via Wi-Fi, stored in a MySQL database, and displayed on a web ...