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cdif-ble-manager

v0.0.9

Published

BLE manager for CDIF framework

Downloads

9

Vulnerabilities

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Links

Git

Maintainers

out4bout4b

Keywords

noble-device

Readme

Introduction

CDIF's Bluetooth LE manager implementation

Based on Sandeep Mistry's noble-device, the goal of this module is to provide common Bluetooth LE device management interface for CDIF framework

In addition to support yeelight-blue and sensorTag extension modules, CDIF BLE manager module now support converting a device's well-known GATT profiles adopted by Bluetooth organization into CDIF's common device model.

This model is dynamically generated from the device's service discovery result. If a well-known characteristic have read / write property, respective read /write action calls will be generated. If the characteristic has notify or indicate property, the state variable's sendEvents property would be set to true so client can subscribe to event update from it. Below is a screen shot of the converted device model for Pally Smart key finder. And client can issue action call to trigger its immediate alert characteristic to buzz it (may need to turn off its passcode feature).

alt tag

By doing this mapping, we hope to provide client web app developers a cleaner programming interface for Bluetooth LE devices which follows standardized Bluetooth LE profiles. Unlike other protocols such as Z-Wave which has more uniformed device profiles, Bluetooth LE is more open and freely used. And in reality, there would be few manufacturers produce BLE device products without their own extensions, e.g. those vendor-specific service, characteristics and controlling commands. However, we hope that, by providing support to standardized GATT profiles as defined by bluetooth.org, client applications may still access devices' standardized profiles and benefit from an open and inter-operable solution even when they doesn't recognize those vendor extensions.

In addition, this module also allows vendor-specific implementations which are managed by this module to flexibly pick either 'cdif-net' or 'vendor-com' URN name space for their device profiles. The yeelight-blue's spec file inside yeelight-blue module contains such examples.

See following links for more details:

https://github.com/out4b/cdif