A smart library seat tracker that fuses an ESP32 + RFID reader with a real-time web app — so students see open seats, reserve a spot, and check the room's noise level from their phone.
Every interaction flows from the hardware in the room to a live page in your pocket — the server is the single source of truth, so the LCD, the database, and the web app never disagree.
A student taps their RFID card on the RC522 reader at the door.
The ESP32 reads the card UID and POSTs it to the cloud over WiFi.
PHP + MySQL toggle the seat, update the count, and log the scan.
The live web app updates within seconds — on the LCD and every phone.
A genuine full-stack IoT project — soldered sensors on one end, a deployed web API on the other.
A clean hub model: the device reports, the server decides, every client reads the same truth.
Every detail that makes it feel like a product instead of a prototype.
The big number every student actually cares about, updating in seconds.
Book a spot for a set duration; it expires and frees itself automatically.
Type your name, tap your booking, and give the spot back instantly.
See how quiet the room is before you head over — with 24h history.
A live roster of who's currently occupying the room, by role.
A green/red heartbeat shows whether the hardware is online right now.
The real seat tracker, deployed and updating in real time. Take a look from your phone.
Open the live app ↗