Smart Lock

Most of this portfolio lives in the browser. This one lives on a door.

The Brief

A dual-access smart door lock, designed and built from the ground up, combining PIN-code entry with RFID card authentication for physical access control.

The Build

Real-world resilience was the priority from day one — the mechanism was engineered to withstand tampering attempts, power outages, and fire risk, not as an afterthought but as a core requirement.

The Outcome

Installed as a working security device at an official residence in Khagrachari, Chittagong — a genuinely security-critical setting, spanning embedded electronics and access-control logic outside the more typical web/software work in this portfolio.