Failed to connect: org.bluez.Error.Failed

[Tech-Blog]

Hi buddy,
thanks for your awesome work.
i was trying to install it both on Raspbian Strech and Ubuntu 18.04 LTS and got this error:
**

Failed to connect: org.bluez.Error.Failed

**
i tried 3 devices,
2 BlueTooth Speakers
1 BlueTooth Earphone.
i was able to pair but not to connect.
can you help me with that?

Cheers,
Tomer

[orrpan]

I was able to connect by adding pulse to the group bluetooth, but not much more
sudo addgroup pulse bluetooth

Edit: got it to work
Got an error from mplayer, so followed this thread https://ubuntuforums.org/showthread.php?t=2213319

echo lirc=no >> ~/.mplayer/config

Could still not connect, so followed this thread #5

platform: tts_bluetooth_speaker
  address: 00:00:00:00:00:00.a2dp_sink
  volume: 0.45

(change to the intended BT-addr)

Finally a test from dev-service in hass.
service: tts.google_say
service_data: {"entity_id":"media_player.tts_bluetooth_speaker","message":"hello there"}

Also edited so my users 'pi' and 'homeassistant' could use bluetooth (don't know if this is needed).
https://www.raspberrypi.org/forums/viewtopic.php?t=108581

sudo nano /etc/dbus-1/system.d/bluetooth.conf

Small modificaton, since both my users are in the group 'homeassistant'

<policy group="homeassistant">
    <allow send_destination="org.bluez"/>
    <allow send_interface="org.bluez.Agent1"/>
    <allow send_interface="org.bluez.GattCharacteristic1"/>
    <allow send_interface="org.bluez.GattDescriptor1"/>
    <allow send_interface="org.freedesktop.DBus.ObjectManager"/>
    <allow send_interface="org.freedesktop.DBus.Properties"/>
  </policy>

Edit2
Since the groups 'homeassistant' could control the connection/disconnection now I updated the pair_bluetooth.sh

#!/bin/bash

input=$1
if [ $input -eq $input ] 2>/dev/null; then
	if [ $input -eq 0 ]; then #unpair
		bluetoothctl <<EOF
disconnect 00:00:00:00:00:00
EOF
	else #pair
		bluetoothctl <<EOF
connect 00:00:00:00:00:00
EOF
	fi
else
	echo error
	exit -1
fi
exit 0

[okarin078]

I was able to connect by adding pulse to the group bluetooth, but not much more
sudo addgroup pulse bluetooth

Edit: got it to work
Got an error from mplayer, so followed this thread https://ubuntuforums.org/showthread.php?t=2213319

echo lirc=no >> ~/.mplayer/config

Could still not connect, so followed this thread #5

platform: tts_bluetooth_speaker
  address: 00:00:00:00:00:00.a2dp_sink
  volume: 0.45

(change to the intended BT-addr)

Finally a test from dev-service in hass.
service: tts.google_say
service_data: {"entity_id":"media_player.tts_bluetooth_speaker","message":"hello there"}

Also edited so my users 'pi' and 'homeassistant' could use bluetooth (don't know if this is needed).
https://www.raspberrypi.org/forums/viewtopic.php?t=108581

sudo nano /etc/dbus-1/system.d/bluetooth.conf

Small modificaton, since both my users are in the group 'homeassistant'

<policy group="homeassistant">
    <allow send_destination="org.bluez"/>
    <allow send_interface="org.bluez.Agent1"/>
    <allow send_interface="org.bluez.GattCharacteristic1"/>
    <allow send_interface="org.bluez.GattDescriptor1"/>
    <allow send_interface="org.freedesktop.DBus.ObjectManager"/>
    <allow send_interface="org.freedesktop.DBus.Properties"/>
  </policy>

Edit2
Since the groups 'homeassistant' could control the connection/disconnection now I updated the pair_bluetooth.sh

#!/bin/bash

input=$1
if [ $input -eq $input ] 2>/dev/null; then
	if [ $input -eq 0 ]; then #unpair
		bluetoothctl <<EOF
disconnect 00:00:00:00:00:00
EOF
	else #pair
		bluetoothctl <<EOF
connect 00:00:00:00:00:00
EOF
	fi
else
	echo error
	exit -1
fi
exit 0

Thx. It works for me :0