Skip to content
CAI
Produce a survey ↗Verify a survey

pauldemarco/flutter_blue

This system is a cross-platform Flutter plugin for Bluetooth Low Energy (BLE) communication, providing a unified API to scan for, connect to, and interact with BLE devices. It exposes structured models for devices, services, and characteristics, enabling read/write operations and notification subscriptions across Android, iOS, and macOS. The codebase has been modernized to support null safety and leverages Protocol Buffers for cross-platform data structures.

49.5

Weak · 5 August 2026

2.6k

lines of production code

Dart

with Java

1

bus factor · 26 authors in all

4

measurements over time

CAI band scale
CAI trend line

How it got here

2017 · null safety and protobuf migration

The project underwent a major architectural overhaul to support Dart null safety and modernize its internal structure. This involved migrating to a protobuf-based data model, removing obsolete abstraction layers, and updating platform-specific implementations for Android and iOS.

18 changes

2018–2020 · macOS support and Android v2 embedding

This period focused on expanding platform support by adding a complete macOS implementation for the Flutter Blue plugin. Concurrently, the Android build system was upgraded to Gradle 6.7, and the Android implementation was refactored to support the v2 embedding, improving compatibility with newer Android and Flutter versions.

4 changes

CAI lens gauges

Survey your own repository

pauldemarco/flutter_blue was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.

Survey a repository

About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 5 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 7c7a86c95a — the exact code this score is about.
  • Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.
CAI link cards