Welcome to Paul's hobby projects!
ScratchArt Draw app
“ScratchArt Draw” is an easy to use drawing application for kids.
It is available for Windows 10. The Android version is not maintained anymore.
Build your own media server and player
|Recipe for building a media server and high end player on a Raspberry Pi
with Logitech Media Server, a HifiBerry DAC+ DSP, Spotify, USB CD player.
The modification in the power supply improves the quality a lot and makes it high end.
Build your own active loudspeaker
More than 50 years ago I built my first loudspeaker.
Build your own pre-amplifier
|An active loudspeaker requires a preamplifier when you
have multiple audio sources like TV, turntable, Bluetooth,
media player, CD-player, etc.
This one contains a Raspberry PI for audio streaming (LMS).
An app or an infra red remote control can be used for channel en volume
You can rip CD's as well controlled by an app.
Track information and cover image are automatically retrieved.
The volume control uses a nice LED strip to indicate the level.
Build your own audio switch
|If you have an active loudspeaker, you might want to turn
it on automatically when the music starts.
This is what an audio switch does.
A low audio signal switches on a SSR (that switches the mains).
After about 5 minutes without music, the SSR is switched off.
Langemeijer en Schulte-Laggenbeck