You can improve the sound of your Raspberry to the level of HiFi equipment using an additional sound card such as the one in the photo. The cost of such a device on aliexpress.com is about $ 15 with delivery.
Install the sound board on the raspberry as shown in the photo.
Enable I2C interface on Raspberry:
sudo raspi-config
>interfacing options > I2C > enable > yes
Edit file /boot/config.txt like this
#dtparam=audio=on
dtparam=i2c_arm=on
dtparam=i2s=on
dtoverlay=hifiberry-dacplus
Reboot you Raspberry
sudo reboot
Test sound
mplayer <your music file>
or for play internet radio
mplayer http://streams.calmradio.com:7328/stream
Do you really like Mozart? 🙂
or
cd /mnt/music/2006Relax
mplayer -shuffle *
To play a random file from your music directory
Open the second terminal and type the command alsamixer
alsamixer
you can adjust the volume with the slider “Digital” like a photo
Now we will edit the code of our echo-bot to control the Internet radio via Telegram. Code under the spoiler.
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import settings from telegram.ext import * from telegram import * import re import sys, os, subprocess def radio_keyboard(): radio_keyboard = [['RADIO','MUSIC'],['>1','>2','>3','>4','>5'],['vol_down','vol_up'],['media_off']] return radio_keyboard def start(update, context): if not update.message.chat_id == <your chat_id> : return update.message.reply_text("please select media",reply_markup=ReplyKeyboardMarkup(radio_keyboard(), resize_keyboard=True)) def media(update, context): if not update.message.chat_id == <your chat_id>: return text = '' if update.message.text == '>1': text = 'Mozart? A good choice!' cmd = 'sudo killall -v mplayer ; amixer -c 0 sset Digital,0 50% ; mplayer http://streams.calmradio.com:7328/stream &' elif update.message.text == '>2': text = 'Radio atmosphere' cmd = 'sudo killall -v mplayer ; amixer -c 0 sset Digital,0 50% ; mplayer http://185.53.169.117:8000/320 &' elif update.message.text == '>3': text = 'Evening breeze' cmd = 'sudo killall -v mplayer ; amixer -c 0 sset Digital,0 50% ; mplayer http://server.rpr.dp.ua:8000/live &' elif update.message.text == '>4': text = 'Calm radio' cmd = 'sudo killall -v mplayer ; amixer -c 0 sset Digital,0 50% ; mplayer http://listen1.myradio24.com:9000/6262 &' elif update.message.text == '>5': text = 'Visual neoclassical music for creative people' cmd = 'sudo killall -v mplayer ; amixer -c 0 sset Digital,0 50% ; mplayer https://magicscope.s02.radio-tochka.com:4635/stream &' ################################# #add your radio here like radio example ################################# elif update.message.text == 'RADIO': text = 'Select a radio station using the buttons below.' cmd = '' elif update.message.text == 'MUSIC': text = 'Relaxing music on this pleasant evening' cmd = 'sudo killall -v mplayer ; mkfifo /home/pi/bot/mplayer-control ; cd /mnt/music/2006Relax/ ; \ mplayer -slave -input file=/home/pi/scripts/mplayer-control -idle -shuffle * &' elif update.message.text == 'vol_up': text = '+3db' cmd = 'amixer -c 0 sset Digital,0 3db+' elif update.message.text == 'vol_down': text = '-3db' cmd = 'amixer -c 0 sset Digital,0 3db-' elif update.message.text == 'media_off': text = 'media_off' cmd = 'sudo killall -v mplayer&' update.message.reply_text(text, reply_markup=ReplyKeyboardMarkup(radio_keyboard(), resize_keyboard=True)) subprocess.Popen(cmd, shell = True) def main(): updater = Updater(settings.TELEGRAM_API_KEY, use_context=True) dp = updater.dispatcher dp.add_handler(CommandHandler("start", start)) dp.add_handler(MessageHandler(Filters.regex('^(>1)|(>2)|(>3)|(>4)|(>5)|(vol_)|(media_off)|(MUSIC)|(RADIO)'),media)) # Start the Bot updater.start_polling() updater.idle() if __name__ == '__main__': main() |
