Hi CityCentreFox,
See here:
#53693
and here:
#66752
This is also interesting:
#67211
The two scenario’s which you describe should both work:
- 1. Two screens, hdmi plus an I2C based LCD. The first is the standard local browser, with or without screen saver. For the second you will need to do some python programming to supply the display data.
2. HDMI screen plus VU meters, VU meters being supplied via the Pi 3.5mm audio jack. You will need to tweak the code to switch on two MPD audio outputs at the same time. For non-MPD audio sources alsa parameters would need to be modified to force output to two cards. Not sure how to do this but there are posts about this on the net.
For both solutions use at least a Pi 3. Sort out your power supplies before you start. For this sort of project you will probably need 7A @ 5V if you are planning to integrate a HHD and the possibility of using a couple of extra USB devices (e.g. search for LRS-35-5).
janui