Bluetoothctl to Hcitool Equivalent Commands

How can I run a terminal command asynchronously using Python?

It looks like you are trying to make an RFCOMM connection.

Both rfcomm and hcitool have been deprecated by the BlueZ project back in 2017 so I wouldn't recommend starting a project using these.

BlueZ has APIs that are designed to be accessed from languages like Python and these are documented at: https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc and the official examples are at: https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/test

However, RFCOMM (or Serial Port Profile) connections can be done with the socket library in the standard Python releases. There are examples at https://stackoverflow.com/a/63382835/7721752

There are also examples in the above answer of using the Bluedot library to do the same.

Linux command line howto accept pairing for bluetooth device without pin

Try setting security to none in /etc/bluetooth/hcid.conf

http://linux.die.net/man/5/hcid.conf

This will probably only work for HCI devices (mouse, keyboard, spaceball, etc.). If you have a different kind of device, there's probably a different but similar setting to change.

Looking to write Bluetooth 'hcitool' equivelant in Windows

Using my 32feet.NET library something like the following.

EDIT 3rd March: I've now added code to directly lookup the device by address rather than by using device discovery; so that's a simple 'new BluetoothDeviceInfo(...)'.

See if that finds the device you want. This requires the remote device to only be in "Connectable" mode whereas the former requires it to be in "Discoverable" mode. (BTW I've left the discovery code in place.)

EDIT 8th March: Now does a connect (using the SDP API) to check that the device is in range (and in connectable mode).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using InTheHand.Net.Bluetooth;
using InTheHand.Net;
using InTheHand.Net.Sockets;
using System.Diagnostics;
using System.Net.Sockets;

namespace hcitool
{
    partial class Program
    {
        static bool infoRatherThanName;
        static BluetoothAddress _searchAddress;

        static int Main(string[] args)
        {
            if (args.Length < 1) {
                Console.WriteLine("Please specify command.");
                return 2;
            }
            var cmd = args[0];
            switch (cmd) {
                case "name":
                    infoRatherThanName = false;
                    break;
                case "info":
                    infoRatherThanName = true;
                    break;
                //-
                case "dev":
                    return ShowRadios();
                //case "auth":
                //    return CauseAuth(GETADDRESS());
                default:
                    throw new NotImplementedException("Command: '" + cmd + "'");
            }
            if (args.Length < 2) {
                Console.WriteLine("Please specify device address.");
                return 2;
            }
            var addrS = args[1];
            _searchAddress = BluetoothAddress.Parse(addrS);
            //
            var dev = new BluetoothDeviceInfo(_searchAddress);
            bool isInRange = GetCanConnectTo(dev);
            if (isInRange) {
                PrintDevice(dev);
            } else {
                Console.WriteLine("Can't see that device.");
            }
            //
            Console.WriteLine("simple");
            return Simple();
            //return Fancier();
        }

        //----
        private static int ShowRadios()
        {
            BluetoothRadio[] list;
            try {
                list = BluetoothRadio.AllRadios;
            } catch (Exception) {
                return 1;
            }
            Debug.Assert(list.Length != 0, "Expect zero radios case to raise an error.");
            foreach (var curR in list) {
                Console.WriteLine("* {0} '{1}'", curR.LocalAddress, curR.Name);
                Console.WriteLine("{0}", curR.SoftwareManufacturer);
                Console.WriteLine("{0}", curR.Manufacturer);
                Console.WriteLine("{0}", curR.Mode);
            }//for
            return 0;
        }

        private static int CauseAuth(BluetoothAddress addr)
        {
            BluetoothSecurity.PairRequest(addr, null);
            return 0;
        }

        //----
        static int Simple()
        {
            BluetoothDeviceInfo[] devices;
            BluetoothDeviceInfo foundDev = null;
            var cli = new BluetoothClient();
            // Fast: Remembered/Authenticated
            devices = cli.DiscoverDevices(255, true, true, false, false);
            SimpleCheckDevice(devices, ref foundDev);
            if (foundDev == null) {
                // Slow: Inquiry
                cli.DiscoverDevices(255, false, false, true, false);
                SimpleCheckDevice(devices, ref foundDev);
            }
            //
            if (foundDev != null) {
                return 0;
            } else {
                return 1;
            }
        }

        private static void SimpleCheckDevice(IEnumerable<BluetoothDeviceInfo> devices,
            ref BluetoothDeviceInfo foundDev)
        {
            foreach (var cur in devices) {
                if (cur.DeviceAddress == _searchAddress) {
                    foundDev = cur;
                    PrintDevice(cur);
                }
            }//for
        }

        private static void PrintDevice(BluetoothDeviceInfo cur)
        {
            Console.WriteLine("* Found device: '{0}' ", cur.DeviceName);
            if (infoRatherThanName) {
                try {
                    var vs = cur.GetVersions();
                    Console.WriteLine(vs.Manufacturer);
                    Console.WriteLine(vs.LmpVersion);
                    Console.WriteLine(vs.LmpSubversion);
                    Console.WriteLine(vs.LmpSupportedFeatures);
                } catch (Exception ex) {
                    Console.WriteLine("Failed to get remote device versions info: "
                        + ex.Message);
                }
            }
        }

        //----
        private static bool GetCanConnectTo(BluetoothDeviceInfo device)
        {
            bool inRange;
            Guid fakeUuid = new Guid("{F13F471D-47CB-41d6-9609-BAD0690BF891}");
            try {
                ServiceRecord[] records = device.GetServiceRecords(fakeUuid);
                Debug.Assert(records.Length == 0, "Why are we getting any records?? len: " + records.Length);
                inRange = true;
            } catch (SocketException) {
                inRange = false;
            }
            return inRange;
        }

    }
}

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