Muses Volume

[myleftear]

This is so cool you might want to get a haircut on your avatar...

 

[lgo51]

I have developed a web interface for my big preamplifier.
The web interface runs on a Raspberry Pi Zero.
The Pi is electrically isolated from the preamplifier controller.
The web interface operates bidirectionally, meaning the status updates on the web interface even when adjustments are made directly on the preamplifier using a rotary encoder or IR remote control.

Here's a sneak peek.

Is there interest in using this as a controller update for the Muses from the thread?

Quick question... would a PI-Zero core be possible? ...not a cpu-taxing application by a long shot

 

[meldano]

I don’t understand your question.
Did you mean one cpu core?
I use the lightweight dietpi os.

 

[Dirk1]

Hello Daniel, I would be interested in the web interface. As I am currently rebuilding my preamplifier. I have a question, can you also use a 3 or 4 Raspi instead of the raspberry Pi Zero, I still have one.

 

[meldano]

Yes shure.
We only need a new controller pcb, new controller and a uart connection between the controller and raspberry pi.
I use a zero, because the Zero is tiny and need less power than the bigger models.

 

[meldano]

Currently, it's only running in my big preamp. That's a completely different project.
I would need to adapt it, meaning design a new controller board, adjust the firmware, and modify the software for the web interface.
Additionally, I would need to provide documentation on how to set up the Raspberry Pi.

That was the reason for asking for interest in the community.

 

[Dirk1]

Unfortunately, I am not familiar with the software. Is it possible to loop the encoder pulses and Ir remote control signals through a Zero and pass them on to the current controller board?

 

[meldano]

Not in my concept.
The concept based on max. modularity.

 

[Dirk1]

Hello,
I bought a Super Regulator for another project that I want to use. If I feed in +/- 15V, a bridge must be set at the regulators, is that correct.
I have coloured it in the picture.
Thanks for your help.

 

[meldano]

Correct

 

[Dirk1]

Thank you

 

[Dirk1]

Hello,
I have completed the control board and wanted to test it,
X3 pin 1+ and 2, 15 volts supplied, output measured 3.3 volts.
Encoder and IR sensor connected, 50 cm cable each and
LED connected.
Encoder pressed then power switched on the led does not flash.
What am I doing wrong?

Ps. The circuit boards are from 07/21 from the AAA forum, unfortunately I only have time to assemble them now.
The controller has been soldered by a professional, the rest I have built.
Greetings Dirk

 

[meldano]

Maybe a defective controller, wrong encoder switch connection, bad soldering.
Connect only the switch and try it again.

 

[Dirk1]

I have now soldered the encoder directly and checked the controller, no error found, no flashing of the LED.
Controller Alps STEC11B03 encoder, 15 pulses / 30 detents, vertical.

I have checked the LED, it lights up.

Can I check whether the controller is faulty?

If the controller is defective, you still have 2 controller boards for sale.

 

[meldano]

Do you hold the button pressed during the power-up process?

Have you ever connected the Muses Board?
Does it work.

Yes, I have a few boards and controllers left.

 

[Dirk1]

I press and hold the button when switching on.
I haven't connected a Muse board yet, I'm still missing the 100 Ohm resistors, wrong delivery.
I won't be able to check the Muse boards for about 2 weeks, so I'll get back to you about the controller boards.

Thanks for the help
Greetings Dirk