README
node-bluetooth-hci-socket
Bluetooth HCI socket binding for Node.js
NOTE: Currently only supports Linux, FreeBSD and Windows.
Prerequisites
NOTE: node-gyp
is only required if the npm cannot find binary for your OS version otherwise the binaries are prebuilt.
Linux
- Bluetooth 4.0 Adapter
Note: the node-usb dependency might fail install, this is ok, because it is an optional optional dependency. Installing libudev-dev
via your Linux distribution's package manager will resolve the problem.
Windows
This library needs raw USB access to a Bluetooth 4.0 USB adapter, as it needs to bypass the Windows Bluetooth stack.
A WinUSB driver is required, use Zadig tool to replace the driver for your adapter.
WARNING: This will make the adapter unavailable in Windows Bluetooth settings! To roll back to the original driver go to: Device Manager -> Open Device -> Update Driver
Note:
- that one should select "Delete the driver software for this device" as per Zadig instructions if the generation of the system restoral point by Zadig fails if one wishes to use restore system restoral point as an option.
Compatible Bluetooth 4.0 USB Adapter's
Name | USB VID | USB PID |
---|---|---|
BCM920702 Bluetooth 4.0 | 0x0a5c | 0x21e8 |
BCM920702 Bluetooth 4.0 | 0x0a5c | 0x21f1 |
BCM20702A0 Bluetooth 4.0 | 0x19ff | 0x0239 |
BCM20702A0 Bluetooth 4.0 | 0x0489 | 0xe07a |
BCM20702A0 Bluetooth 4.0 | 0x413c | 0x8143 |
CSR8510 A10 | 0x0a12 | 0x0001 |
Asus BT-400 | 0x0b05 | 0x17cb |
Intel Wireless Bluetooth 6235 | 0x8087 | 0x07da |
Intel Wireless Bluetooth 7260 | 0x8087 | 0x07dc |
Intel Wireless Bluetooth 7265 | 0x8087 | 0x0a2a |
Intel Wireless Bluetooth 8265 | 0x8087 | 0x0a2b |
Belkin BCM20702A0 | 0x050D | 0x065A |
Dell Precision 5530 | 0x8087 | 0x0025 |
Compatible Bluetooth 4.1 USB Adapter's
Name | USB VID | USB PID |
---|---|---|
BCM2045A0 Bluetooth 4.1 | 0x0a5c | 0x6412 |
Marvell AVASTAR | 0x1286 | 0x204C |
Install
npm install @abandonware/bluetooth-hci-socket
Usage
var BluetoothHciSocket = require('@abandonware/bluetooth-hci-socket');
Actions
Create
var bluetoothHciSocket = new BluetoothHciSocket();
Set Filter
var filter = new Buffer(14);
// ...
bluetoothHciSocket.setFilter(filter);
Note: setFilter
is not required if bindRaw
is used.
Bind
Raw Channel
bluetoothHciSocket.bindRaw([deviceId]); // optional deviceId (integer)
User Channel
bluetoothHciSocket.bindUser([deviceId]); // optional deviceId (integer)
Requires the device to be in the powered down state (sudo hciconfig hciX down
).
Control Channel
bluetoothHciSocket.bindControl();
Is Device Up
Query the device state.
var isDevUp = bluetoothHciSocket.isDevUp(); // returns: true or false
Note: must be called after bindRaw
.
Start/stop
Start or stop event handling:
bluetoothHciSocket.start();
// ...
bluetoothHciSocket.stop();
Note: must be called after bindRaw
or bindControl
.
Write
var data = new Buffer(/* ... */);
// ...
bluetoothHciSocket.write(data);
Note: must be called after bindRaw
or bindControl
.
Events
Data
bluetoothHciSocket.on('data', function(data) {
// data is a Buffer
// ...
});
Error
bluetoothHciSocket.on('error', function(error) {
// error is a Error
// ...
});
Examples
See examples folder for code examples.
Platform Notes
Linux
Force Raw USB mode
Unload btusb
kernel module:
sudo rmmod btusb
Set BLUETOOTH_HCI_SOCKET_FORCE_USB
environment variable:
sudo BLUETOOTH_HCI_SOCKET_FORCE_USB=1 node <file>.js
FreeBSD
Disable automatic loading of the default Bluetooth stack by putting no-ubt.conf into /usr/local/etc/devd/no-ubt.conf
and restarting devd (sudo service devd restart
).
Unload ng_ubt
kernel module if already loaded:
sudo kldunload ng_ubt
OS X
Disable CSR USB Driver
sudo kextunload -b com.apple.iokit.CSRBluetoothHostControllerUSBTransport
Disable Broadcom USB Driver
sudo kextunload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
Windows
Force adapter USB VID and PID
Set BLUETOOTH_HCI_SOCKET_USB_VID
and BLUETOOTH_HCI_SOCKET_USB_PID
environment variables.
Example for USB device id: 050d:065a:
set BLUETOOTH_HCI_SOCKET_USB_VID=0x050d
set BLUETOOTH_HCI_SOCKET_USB_PID=0x065a
node <file>.js