OpenIT.chat Doorbell

Done

A native iOS and Android app used as a digital doorbell, leveraging an API to send messages to an existing chat app.

FlutterREST APIs 2026
Native App
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Overview

A native mobile application used as a digital doorbell

Challenge

OpenIT meetings take place in a location with a shared doorbell, which sometimes does not even work. This requires people attending the meeting to often call the organizer to let them in.

Approach

I took an existing chat app and leveraged it's API inside a native app to be able to send a message to the chat whenever someone is at the door.

Outcome

The shared doorbell will no longer be a bottleneck for OpenIT meetings.

Highlights

  • Cross-platform iOS and Android app
  • Leverages an API to send messages to a chat app
  • Uses JWT-authentication to determine who is at the door
  • Uses geolocation to determine whether someone is close enough to ring the doorbell