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All work

Classroom Presence System

ShippedGroup project

Replaced paper roll-call with a phone tap. Students tap their phone against the teacher’s device, attendance lands in the teacher’s dashboard in real time: no scanning app, no manual counting.

Stack
Kotlin, Android NFC/HCE, FastAPI, Firebase Auth + Firestore
Team
Built with Simona Zlatanovska
Links

How it works

A student taps their phone against the teacher’s device over NFC. The tap goes to a FastAPI backend, the attendance record lands in Firestore, and the teacher’s dashboard updates in real time. Accounts run on Firebase Auth.

There is no separate scanning app to open and nothing to count by hand: the tap is the roll-call.

A group project

Built with Simona Zlatanovska.

Classroom Presence attendance flowStudent’s phone, then Teacher’s device, then FastAPI backend, then Firestore, then Teacher’s dashboard. The first step is an NFC tap.Student’s phoneAndroid app, KotlinTeacher’s deviceReceives the tapFastAPI backendRecords the attendanceFirestoreStores the recordTeacher’s dashboardUpdates in real timeNFC tap
The attendance flow, drawn from the system’s architecture. There are no phone screenshots yet: capturing them needs NFC hardware.

Proof

ClaimHow it was checkedState
Phone screenshots of the student and teacher appsThe diagram on this page shows the flow instead.Not captured. Taking them needs a physical NFC phone.Open