ble-mesh-serial-interface-js

An npm package for Node.js that provides an API to control a router node in a BLE mesh network via the serial port.

Installation

npm install ble-mesh-serial-interface-js

Usage

'use strict';

const BLEMeshSerialInterface = require('./BLEMeshSerialInterface');

const MESH_ACCESS_ADDR = 0x8E89BED6;
const MESH_INTERVAL_MIN_MS = 100;
const MESH_CHANNEL = 38;

const bleMeshSerialInterfaceAPI = new BLEMeshSerialInterface();

bleMeshSerialInterfaceAPI.openSerialPort('COM45', err => {
  bleMeshSerialInterfaceAPI.init(MESH_ACCESS_ADDR, MESH_INTERVAL_MIN_MS, MESH_CHANNEL, err => {
    if (err) {
      console.log(err);
    }
    console.log('device initialized');
    bleMeshSerialInterfaceAPI.valueSet(0, new Buffer([0x00, 0x01, 0x02]), err => {
      if (err) {
        console.log(err);
      }
      console.log('valueSet() handle = 0, value = [0, 1, 2]');
      bleMeshSerialInterfaceAPI.valueGet(0, (err, res) => {
        if (err) {
          console.log(err);
        }
        console.log('valueGet() res: ', res);
        bleMeshSerialInterfaceAPI.radioReset(err => {
          if (err) {
            console.log(err);
          }
          console.log('device reset');
        });
      });
    });
  });
});

'use strict';

const BLEMeshSerialInterface = require('./BLEMeshSerialInterface');

const FIRST_COM_PORT = 'COM45';
const OPTIONAL_SECOND_COM_PORT = 'COM46';

const bleMeshSerialInterfaceAPI = new BLEMeshSerialInterface();

bleMeshSerialInterfaceAPI.openSerialPort('COM45', err => {
  if (err) {
    console.log(err);
  }
  const buf = new Buffer([0x01]);

  ble.echo(buf, (err, res) => {
    if (err) {
      console.log(err);
    }
    ble.openSerialPort(OPTIONAL_SECOND_COM_PORT, err => {
      if (err) {
        console.log(err);
      }
      ble.echo(buf, (err, res) => {
        if (err) {
          console.log(err);
        }
      });
    });
  });
});

API

TODO: Improve this.

BLEMeshSerialInterface is defined in 'index.js' and it has public methods for interfacing with the ble mesh device and opening/closing/writing the serial port. It also emits events on specific serial port events and ble mesh events. For now, see /* API Methods / and / nRF Open Mesh Serial Interface */ in 'index.js.' For info about the events BLEMeshSerialInterface emits, search 'index.js' for 'this.emit'

• Only one serial port can be opened per instance of BLEMeshSerialInterface. If you have COM1 opened, and then call openSerialPort(COM2), COM1 will be automatically closed.
• The constructor returns immediately, then to use any commands that send over serial you must explicitly call openSerialPort.

Tests

npm test

Contributing

In lieu of a formal style guide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code.