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  • Author Author: tariq.ahmad
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Raspberry Pi 4 Music Player w/ Analog Controls -- Episode 435

 

I love the Volumio music player software for the Raspberry PI, but I am tired of digging through my pockets for my phone to change the volume or pause a song. In this episode, we are going to fix that by adding a bunch of buttons and knobs in addition to a touchscreen display to control Volumio 100% from hardware and without the need for a web browser or app!

 

Click Here for access to all the supporting files you will need to replicate this build! 

Bill of Material:

Product Name Manufacturer Quantity Buy Kit
TRANSCEND 16GB MicroSD Card, Preloaded with NOOBS (V2) OS Installer for Raspberry Pi TRANSCEND 1 Buy Now
RASPBERRY-PI Single Board Computer, Raspberry Pi 4 Model B, BCM2711 SoC, 4GB DDR4 RAM, USB 3.0, PoE Enabled RASPBERRY-PI 1 Buy Now
RASPBERRY-PI Raspberry Pi 7" Touch Screen Display with 10 Finger Capacitive Touch RASPBERRY-PI 1 Buy Now
STONTRONICS AC/DC Power Supply, 1 Output, 15.3 W, 5.1 V, 3 A STONTRONICS 1 Buy Now
ITW SWITCHES Pushbutton Switch, Industrial, 59 Series, 13.6 mm, SPST-NO-DB, Momentary, Square ITW SWITCHES 2 Buy Now
ITW SWITCHES Pushbutton Switch, Industrial, 59 Series, 13.6 mm, SPST-NO-DB, Momentary, Square ITW SWITCHES 1 Buy Now
ITW SWITCHES Pushbutton Switch, Industrial, 59 Series, 13.6 mm, SPST-NO-DB, Momentary, Round ITW SWITCHES 1 Buy Now
ITW SWITCHES Pushbutton Switch, Industrial, 59 Series, 13.6 mm, SPST-NO-DB, Momentary, Round ITW SWITCHES 1 Buy Now
TE CONNECTIVITY IC & Component Socket, 16 Contacts, DIP Socket, 2.54 mm, 7.62 mm, Phosphor Bronze TE CONNECTIVITY 1 Buy Now
MICROCHIP Analog to Digital Converter, 10 bit, 200 kSPS, Pseudo Differential, Single Ended, Serial, SPI MICROCHIP 1 Buy Now

 

Additional Parts:

 

Product Name

Adafruit CAP1188

SPDT Toggle Switch

10k Linear Taper Potentiometer

Protoboard

Slide Pot - Motorized (10k Linear Taper)
Attachments:
Resources_Pi4MusicPlayer.zip
image
Raspberry Pi 4 Music Player w/ Analog Controls

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  • Kaleb,

     

    great project. I will build it for my 5year old daughter with a horse riding on the slider in front of a princess castle being the player. I am searching for a good idea for weeks now and yours is second to none.

     

    I shall try to use a waveshare 7display and I further plan to use a simpler web ui rather than the official volumio.

     

    Recourses zip seem to only have stl files in it. I cannot find wiring diagrams and a bit of explanation around the hardware, in particular what motor specs for the slider and why and what kind of volume poti rather than a rotary encoder?. Any chance to post wiring and some more info, as this would make a built much less try and error.

     

    Cheers Andreas

Comment

  • Kaleb,

     

    great project. I will build it for my 5year old daughter with a horse riding on the slider in front of a princess castle being the player. I am searching for a good idea for weeks now and yours is second to none.

     

    I shall try to use a waveshare 7display and I further plan to use a simpler web ui rather than the official volumio.

     

    Recourses zip seem to only have stl files in it. I cannot find wiring diagrams and a bit of explanation around the hardware, in particular what motor specs for the slider and why and what kind of volume poti rather than a rotary encoder?. Any chance to post wiring and some more info, as this would make a built much less try and error.

     

    Cheers Andreas

Children
  • in reply to Former Member

    Thank you!

     

    Below is the best I have for a schematic. Unfortunately, it does not include the CAP1188 Capacitance sensor for the fader, but if I recall correctly I used SPI for that to connect to the Raspberry PI. Adafruit has great documentation for that device.

     

    For the parts, if you look in the "Additional Parts" section above it describes the fader, and which type of pot I used for the volume. Those faders are sometimes difficult to find, but if you just google the description above you will get some hits. Just make sure you find one that is the right length for your project. They vary in size. The fader has contacts for a potentiometer just like you would expect, connections for the motor, and another lead for capacitance.

     

    I am in the middle of a move, and that device is still packed up. But if you have troubles with that part I can try to find it and trace out the fader portion.

     

    Here is the schematic that I was able to dig up.

    image

     

    Good Luck with your build!

    -Kaleb Clark