ble-wrapper
v1.5.4
Published
capacitor-community/bluetooth-le wrapper for quicker config. IOS/Android-native, & Web Bluetooth in one small package
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BLEClient wrapper class
npm i ble-wrapper
Convenience features for the @capacitor-community/bluetooth-le API for browser or native mobile usage without changing your code. See class usage below. Includes useful byte manipulation callbacks. 19.5kb dist
Instantiate with const BLE = new BLEClient()
. See class details below.
The main dist includes a globalThis.BLEClient declaration for browser inclusion e.g. from jsdelivr. Only works in compatible browsers.
type DeviceOptions = {
name?:string;
namePrefix?: string;
deviceId?: string;
onConnect?: () => void;
onDisconnect?: () => void;
connectOptions?: TimeoutOptions;
services: {
[key: string]: { //service UUID
UUID?:string, //define UUID here if not in object key (e.g. for easier reference keys e.g. 'heartrate')
[key: string]: { //characteristic or a tagname
characteristic?: string, //define characteristic here if not in object key
read?: boolean;
readOptions?: TimeoutOptions;
readCallback?: ((result: DataView) => void);
write?: string | number | ArrayBufferLike | DataView;
writeOptions?: TimeoutOptions;
writeCallback?: (() => void);
notify?: boolean;
notifyCallback?: ((result: DataView) => void);
[key: string]: any;
};
};
};
};
type DeviceInfo = {
device: BleDevice;
options: DeviceOptions;
};
class BLEClient {
client: BleClientInterface;
devices: {
[key: string]: DeviceInfo;
};
location?: boolean;
constructor(options: DeviceOptions, location?: boolean);
setup(options: DeviceOptions, location?: boolean): Promise<DeviceInfo>;
initialize(options: InitializeOptions): Promise<true>;
requestDevice(request: RequestBleDeviceOptions, options: DeviceOptions): Promise<BleDevice>;
setupDevice: (device: BleDevice, options: DeviceOptions) => Promise<DeviceInfo>;
connect(device: BleDevice, options: DeviceOptions): Promise<BleDevice>;
reconnect(deviceId: string): Promise<BleDevice>;
disconnect(device: BleDevice): Promise<void>;
write(device: BleDevice, service: string, characteristic: string, value: string | number | ArrayBufferLike | DataView | number[], callback?: () => void, options?: TimeoutOptions): Promise<void>;
read(device: BleDevice, service: string, characteristic: string, ondata?: (result: DataView) => void, options?: TimeoutOptions): Promise<void> | Promise<DataView>;
subscribe(device: BleDevice, service: string, characteristic: string, ondata: (result: DataView) => void): Promise<void>;
unsubscribe(device: BleDevice, service: string, characteristic: string): Promise<void>;
scan(options: RequestBleDeviceOptions, callback: (result: ScanResult) => void): Promise<void>;
stopScanning(): Promise<void>;
readDescriptor(device: BleDevice, service: string, characteristic: string, descriptor: string, options?: TimeoutOptions): Promise<DataView>;
writeDescriptor(device: BleDevice, service: string, characteristic: string, descriptor: string, value: string | number | DataView | ArrayBufferLike | number[], options?: TimeoutOptions): Promise<void>;
readRssi(device: BleDevice): Promise<number>;
distance(device: BleDevice, txPower: any, x: number, exp: number, c: number): Promise<number>;
distanceFromPhone(//https://github.com/kevindigi/android-iot-samples/blob/7fb4b91eb769a3dba06891286f4f2f3249dab2a6/app/src/main/java/com/digicorp/helper/DistanceManager.java#L48
device: BleDevice, txPower: number, //signal strength at 1 meter, hardware-specific
model?: string): Promise<number>;
triangulate: (device: BleDevice, duration?: number, sampleRate?: number) => Promise<unknown>;
static toDataView(value: string | number | ArrayBufferLike | DataView | number[]): DataView;
static searchBuffer(buffer: number[] | ArrayBuffer, searchString: Uint8Array, limit?: number): any[];
static bytesToInt16(x0: number, x1: number): number;
static bytesToUInt16(x0: number, x1: number): number;
static Uint16ToBytes(y: number): number[];
static bytesToInt24(x0: number, x1: number, x2: number): number;
static bytesToUInt24(x0: number, x1: number, x2: number): number;
static Uint24ToBytes(y: number): number[];
static bytesToInt32(x0: number, x1: number, x2: number, x3: number): number;
static bytesToUInt32(x0: number, x1: number, x2: number, x3: number): number;
static Uint32ToBytes(y: number): number[];
static get2sCompliment(val: number, nbits: number): number;
static getSignedInt(...args: number[]): number;
static asUint8Array(input: any): Uint8Array;
static boyerMoore(patternBuffer: any): any;
}
Build with tinybuild
, or npm i -g tinybuild & tinybuild
Wrapper for @capacitor-community/bluetooth-le library just for quicker config of multiple devices/services with multiple characteristics per service and customizable responses to those characteristics.
Capacitor required to build mobile apps after bundling the library.
Capacitor instructions:
In your project root
npm i
Edit the index.js and optionally the index.html in the dist/
folder. All public asset files need to end up in dist/
Build step:
If no tinybuild installed globally: npm i -g tinybuild
or to keep it in dev dependencies npm i --save-dev tinybuild
Build:
tinybuild
Android Studio (install it first)
npx cap copy
ornpx cap sync
to sync the www/ dist to the platform-specific folders.npx cap open android
to open android studio ready to build and serve the apk.
Build the android project by click the Make Project hammer icon if it doesn't start automatically. Then if you see BUILD SUCCESSFUL, run with your android device connected or the built-in android emulators active.
XCode
npx cap copy
ornpx cap sync
npx cap open ios
to open xcode ready to build and serve the app