bluetoothctl
power on
agent on
default-agent
quit
sudo killall bluealsa
pulseaudio -k
pulseaudio –start
pactl unload-module module-bluetooth-discover
pactl load-module module-bluetooth-discover

3. Turn your bluetooth speaker on and disconnect from other devices:

bluetoothctl
scan on

4. Wait until Raspberry Pi finds the target bluetooth speaker, and note the MAC address such as “XX:XX:XX:XX:XX:XX”:

scan off

5. Replace “XX:XX:XX:XX:XX:XX” with your address:

pair XX:XX:XX:XX:XX:XX
trust XX:XX:XX:XX:XX:XX
connect XX:XX:XX:XX:XX:XX

6. Confirm it is recognized as a sound device:

pacmd list-cards

7. You should see your device address like “XX:XX:XX:XX:XX:XX” somewhere:

pacmd set-card-profile bluez_card.XX_XX_XX_XX_XX_XX a2dp_sink
pacmd set-default-sink bluez_sink.XX_XX_XX_XX_XX_XX.a2dp_sink

8. Edit “start-pulseaudio-x11” script to connect bluetooth speaker on startup:

sudo nano /usr/bin/start-pulseaudio-x11

9. Find the block of commands below:

if [ x”$SESSION_MANAGER” != x ] ; then
/usr/bin/pactl load-module module-x11-xsmp “display=$DISPLAY session_manager=$SESSION_MANAGER” > /dev/null
fi

10. Add the following lines of commands right after it (this will let you get sound from your speaker):

/usr/bin/pactl unload-module module-bluetooth-discover
/usr/bin/pactl load-module module-bluetooth-discover
sudo killall bluealsa
pulseaudio –start
bluetoothctl << EOF
connect XX:XX:XX:XX:XX:XX
EOF

11. Save the file by pressing Ctrl + X then Y and finally ENTER.

12. Modify “.bashrc” file.

sudo nano ~/.bashrc

13. Add the following lines of commands at the bottom:

/usr/bin/pactl unload-module module-bluetooth-discover
/usr/bin/pactl load-module module-bluetooth-discover
sudo killall bluealsa
pulseaudio –start
bluetoothctl << EOF
connect XX:XX:XX:XX:XX:XX
EOF

14. Save the file by pressing Ctrl + X then Y and finally ENTER. Then restart the Raspberry Pi:

sudo reboot

Credits

https://www.funincomplete.com/how-to-make-raspberry-pi-speak/

How to Change the Repository Mirror on Raspbian

By csforward

On December 7, 2020

In Raspberry Pi

Steps

1. Begin modifying sources.list file by running the following command:

sudo nano /etc/apt/sources.list

2. Find the following:

http://raspbian.raspberrypi.org/raspbian/

3. Replace with:

http://mirror.aarnet.edu.au/pub/raspbian/raspbian

4. Once you have finished modifying the file, it should look something like the text we have below:

deb http://mirror.aarnet.edu.au/pub/raspbian/raspbian stretch main contrib non-free rpi

# Uncomment line below then ‘apt-get update’ to enable ‘apt-get source’

#deb-src http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-free rpi

5. Save the file by pressing Ctrl + X then Y and finally ENTER.

6. Now that we have updated the sources.list file we need to go ahead and run an update. This will update the local package list so that it will retrieve packages from the new repository:

sudo apt-get update

Credits

https://pimylifeup.com/raspbian-repository-mirror/

youtube-dl setup

By csforward

On December 7, 2020

In Raspberry Pi

Steps

0. Install vlc to play videos:

sudo apt install -y vlc

1. Run:

sudo apt install python3-pip

sudo pip3 install youtube-dl

2. After installation, you can search video and list formats:

youtube-dl –list-formats “ytsearch:videoname”

3. To download chosen video+audio and merge them, then rename the output:

youtube-dl -o “name.mp4” -f ‘videocode+audiocode’ “link or ytsearch:videoname”

4. To watch a video while downloading, first, create a Python script:

sudo nano hello.py

– Then type the following and Ctrl+X and Y and Enter:

import subprocess

import youtube_dl

player_run = False

p = None

def hook(status):

global player_run, p

if not player_run:

player_run = True

p = subprocess.Popen([‘vlc’, ‘-I ncurses’, status[‘filename’]])

opts = {

‘format’: ‘best’,

‘nopart’: True,

‘progress_hooks’: [hook],

‘verbose’: True,

}

with youtube_dl.YoutubeDL(opts) as ydl:

srch=input(“Search on YouTube: “)

ydl.download([‘ytsearch:’+srch])

p.wait()