@stoprocent/bleno/examples/echo/main.js

A Node.js module for implementing BLE (Bluetooth Low Energy) peripherals

const { withBindings } = require('../../');

const bleno = withBindings('default');
// const bleno = withBindings('mac');
// const bleno = withBindings('hci', { hciDriver: 'uart' });

const BlenoPrimaryService = bleno.PrimaryService;

const EchoCharacteristic = require('./characteristic');

console.log('bleno - echo');

bleno.on('stateChange', function (state) {
  console.log('on -> stateChange: ' + state);

  if (state === 'poweredOn') {
    bleno.setAddress('11:22:44:55:99:10');
    bleno.startAdvertising('echo', ['ec00']);
  } else {
    bleno.stopAdvertising();
  }
});

bleno.on('accept', function (device, handle) {
  console.log('on -> accept: ' + device + ' ' + handle);
  // If you want to stop advertising after a connection is accepted
  // Another central will not be able to connect until advertising is started again
  bleno.stopAdvertising();
});

bleno.on('disconnect', function (device, handle) {
  console.log('on -> disconnect: ' + device + ' ' + handle);
  // If you want to start advertising again after a disconnection
  // Another central will not be able to connect until advertising is started again
  bleno.startAdvertising('echo', ['ec00']);
});

bleno.on('advertisingStart', function (error) {
  console.log('on -> advertisingStart: ' + (error ? 'error ' + error : 'success'));

  if (!error) {
    bleno.setServices([
      new BlenoPrimaryService({
        uuid: 'ec00',
        characteristics: [
          new EchoCharacteristic()
        ]
      })
    ]);
  }
});