This little Raspberry Pi based project is a gift for my wife's grandmother for her 90th birthday. Being visually impaired, she is hard to entertain but loves to listen to audiobooks. The problem is, that she isn't able to handle a ghetto blaster or MP3 player.
The solution to this problem was - tadaaaah - a one button audiobook player :)
It basically consists of:
The following software has been used:
The features are the following:
Some pics and a video:
(The audiobook used in this video is a free version of Cory Doctorows “Little Brother” from Fabian Neidhardt
If you like to build your own one button audio book player, here are the super simple schematics:
And last but not least - the python script. The code might be crappy, please comment if you have improvements (especially regarding loadMusic). You can find it on github:
Here's what Russel wrote in a comment to the original post on http://blogs.fsfe.org/clemens:
"I just completed building this and have some addendum notes adding more details: Install the following packages: sudo apt-get install mpd sudo apt-get install mpc sudo apt-get install python-mpd sudo apt-get install python-pyudev (below assumes using defaults for /etc/mpd.conf) sudo mkdir -p /music/usb sudo ln -s /var/lib/mpd /music/mpd sudo ln -s /var/lib/mpd/music /music/mp3 Copy the tobabp.py script to /home/pi nano /home/pi/tobabp.py Change these in the script or flip the connections in wiring diagram. BUTTON = 17 LED = 24 Testing Rename a USB stick to “1GB” Copy 1 MP3 onto the stick Insert the stick into pi sudo mount /dev/sda1 /music/usb sudo /etc/init.d/mpd stop sudo rm /music/mp3/\* sudo cp /music/usb/\* /music/mp3/ sudo umount /music/usb Remove the USB stick sudo rm /music/mpd/tag\_cache sudo /etc/init.d/mpd start mpc clear mpc ls mpc ls | mpc add sudo /etc/init.d/mpd restart mpc play Plug in earphones You should hear audio Next try the python script: sudo python /home/pi/tobabp.py Insert USB stick the LED should flash and the USB file copy to /music/mp3/ the LED should flash again. Remove the Stick and LED flashes again. Press button to start playing Press button again to stop Press & hold button to rewind to beginning. sudo crontab -e Add following line run at startup @reboot python /home/pi/tobabp.py & sudo reboot Then retest again to be sure all is well."