# JuulLabs/kable

Kotlin Asynchronous Bluetooth Low-Energy

Repository: https://github.com/JuulLabs/kable
Canonical: https://ross.abutalabs.com/products/kable
Homepage: https://juullabs.github.io/kable
Language: Kotlin
License: Apache-2.0
License Family: permissive
Topics: bluetooth-low-energy, kotlin-multiplatform, kotlin-coroutines, apple, core-bluetooth, javascript, web-bluetooth, android
Last push: 2026-08-31T20:41:45+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 94, longevity 100
- inputs: {"age_days": 2187, "days_push": 2, "days_rel": 42, "gap_med": 15.5, "n_releases_24m": 21}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1187, forks 113 (observed 2026-09-01T02:13:55.278865+00:00)

## What it is
Kable is a Kotlin Multiplatform library providing a Coroutines-powered API for interacting with Bluetooth Low Energy devices. It supports Android, iOS, macOS, JVM, and JavaScript (Web Bluetooth) targets.

## Use cases
- connect to BLE devices from Kotlin Multiplatform code
- read and write Bluetooth LE characteristics with coroutines
- scan for nearby Bluetooth Low Energy peripherals
- subscribe to characteristic notifications from heart rate sensors
- build cross-platform apps that talk to BLE hardware
- work with Bluetooth service and characteristic UUIDs

## When to choose
- you need BLE support across Android, iOS, and web from shared Kotlin code
- you prefer a coroutine-based asynchronous API over platform-native BLE callbacks
- you are building a Kotlin Multiplatform app that communicates with BLE peripherals

## When to avoid
- your project is not on the JVM/Kotlin ecosystem
- you need Bluetooth Classic (non-LE) support
- you need platforms outside Android, Apple, JVM, or Web Bluetooth targets

## Facets
- artifact type: library
- maturity: active
- function: sdk, concurrency
- domain: developer-tools, cross-platform, iot
- platform: jvm, browser
- tags: bluetooth-low-energy, kotlin-multiplatform, coroutines, core-bluetooth, web-bluetooth, android, ios, macos, javascript

## Member repositories
- JuulLabs/kable (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-09-01T02:13:55.278865+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:23:46.921005+00:00, confidence not recorded.
  - readme: https://github.com/JuulLabs/kable (fetched 2026-09-01T02:13:55.278865+00:00, sha 06c65c0f7be3)
  - homepage: https://juullabs.github.io/kable (fetched 2026-08-29T12:30:46.610627+00:00, sha b279a545a4dd)
- Data as of 2026-08-30T08:39:29.467469+00:00.