• SECURITY
  • iOS and Android app + hardware integration

Defense

Defense: QR code access control for residential communities, without gatehouse registration

Residents and guests enter through the app, using QR codes scanned at the gatehouse — and the community gains access data to inform decisions.

Screens from the Defense project
  • QR code access
  • Reader integration
  • Event guests
  • Access analytics

Context

Residential gatehouses often mean lines and paperwork: a resident notifies the gatekeeper, the gatekeeper registers the guest, and the guest waits. On event days, the workload multiplies. Defense was created to digitize this process and remove manual registration from the gatehouse.

What we built

  • Access QR codes generated in the app for residents and guests, including batch generation for events.
  • Integration with gatehouse readers: the reader validates the code and grants access.
  • Profiles and permissions for residents, guests, and service providers, with validity periods and rules for each type.
  • A community dashboard with access history and analytics.

The challenge

Software communicating with hardware. QR code scanning at the gatehouse had to be accurate and fast: nobody waits five seconds at the gate. Communication between the app, server, and reader also had to work with the community's actual network infrastructure, rather than ideal conditions.

Results

Safer, faster access: immediate profile validation without manual gatehouse registration. For the first time, the community gained access data — who enters, when, and how often — to make security and operational decisions based on concrete information.

How we built it

Platforms
iOS · Android · Community web dashboard · QR code reader integration

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