I had to go to Digikey to find mine, and even now they appear to be out of stock. According to the product listing on their site, typical turnaround from the manufacturer is 25 days. So depending on the cycle you may not have to wait too long.
As @meldano said, too, you can get a pre-programmed micro from him.
And also, as mentioned, the current device number is 72323.
As @meldano said, too, you can get a pre-programmed micro from him.
And also, as mentioned, the current device number is 72323.
An encoder question.
Hi Meldano.
I ordered a Volume Control Set from you, and its on the way.
During transport time I have look trough the documentation again and starting to look for component providers.
I have a question:
According to documentation, the volume steps are changeable by setup (0=0.25;1=0.5;2=1;3=2dB). As I understand it, the ALPS STEC11B encoder delivers 15 pulses/rotation, which give a maximum of 30 db volume change/rotation.
Soo:
- Will the volume control board decrease/increase volume by 30 db/rotation?
- Is it possible to change the encoder to one with the same characteristics but more pulses/rotation without causing any trouble in the programmed microcontroller?
Thank you for your fantastic work.
Hi Meldano.
I ordered a Volume Control Set from you, and its on the way.
During transport time I have look trough the documentation again and starting to look for component providers.
I have a question:
According to documentation, the volume steps are changeable by setup (0=0.25;1=0.5;2=1;3=2dB). As I understand it, the ALPS STEC11B encoder delivers 15 pulses/rotation, which give a maximum of 30 db volume change/rotation.
Soo:
- Will the volume control board decrease/increase volume by 30 db/rotation?
- Is it possible to change the encoder to one with the same characteristics but more pulses/rotation without causing any trouble in the programmed microcontroller?
Thank you for your fantastic work.
Hi @meldano,
While reviewing the schematics, I may have run into a pin labeling error on the Main Board. Presuming I read this correctly, the input and output signals for connection point X4-4 on the Muses interface area are reversed. Presuming the leftmost connection in the schematic is X4-4:1 and X4-4:3 is the rightmost, it is opposite of pin 1 on Volume Board.
If you’re stacking boards, you’ll probably never even notice it. My configuration will likely have them separated, and it might get wired out of phase if I’m reading the schematics as I believe them to be.
Board artwork is fine, though, so no worries. Likely not an issue for most. 🙂
Thoughts?
Great layout and schematic! So easy to follow.
Best regards,
Chris
EDIT: IC10 on the schematics are labeled IC1 on the Main Board. 🙂
While reviewing the schematics, I may have run into a pin labeling error on the Main Board. Presuming I read this correctly, the input and output signals for connection point X4-4 on the Muses interface area are reversed. Presuming the leftmost connection in the schematic is X4-4:1 and X4-4:3 is the rightmost, it is opposite of pin 1 on Volume Board.
If you’re stacking boards, you’ll probably never even notice it. My configuration will likely have them separated, and it might get wired out of phase if I’m reading the schematics as I believe them to be.
Board artwork is fine, though, so no worries. Likely not an issue for most. 🙂
Thoughts?
Great layout and schematic! So easy to follow.
Best regards,
Chris
EDIT: IC10 on the schematics are labeled IC1 on the Main Board. 🙂
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Daniel - how critical is the value for R5/R6 on the ucontroller board? made a mistake and ordered one 2k7. The nearest I have spare for two is 3k3?
@jmc_1965:
Yes and yes.
The paramter also has an effect on the setting volume with remote control.
Yes and yes.
The paramter also has an effect on the setting volume with remote control.
@Chris:
Thanks for your feedback. I will correct the documentation asap.
Nice pictures and high professional work.
Show us more!
Thanks for your feedback. I will correct the documentation asap.
Nice pictures and high professional work.
Show us more!
@ passive420:
The resistors are I2C pull ups.
I think 2k2-3k3 is a good value.
The resistors are only required with the mainboard.
The resistors are I2C pull ups.
I think 2k2-3k3 is a good value.
The resistors are only required with the mainboard.
Wonderful! One last item and I'll be done, I promise. 🙂 In/Out pins on X4-4 are backwards based on their signal. You can either move pin 4:1 on the drawing or change label flag above if you want to keep the pins 1-3 from left to right.
Appreciate your volume control project!
Appreciate your volume control project!
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Hi,
Gladly in the next few days
@meldano,
COV makes possible ... cool Vokuhila (avatar) 🙂
I will it into my HPA-1 Clone from Jeff, but meldano has also a really nice one made.
Gladly in the next few days
@meldano,
COV makes possible ... cool Vokuhila (avatar) 🙂
You're fantastic 😀 Appreciate your speed!
FYI, I'm breaking my build out into its own discussion, but will post updates here as well.
FYI, I'm breaking my build out into its own discussion, but will post updates here as well.
Daniel, just to say thanks for your excellent service, your PCB's are lovely quality and very easy to build. Does my uController need the update flash? I'll buy the little widget.
Not sure if this is useful to anyone about to buy components for Meldano Muses boards, but I found some ultra miniature caps by Panasonic ECE to fit seated properly between boards. No reason other than making things tidy 😉
ECE-A1AKS470
For C2/C4 on the attenuator boards, I have Rubycon ML 100uF 16V:
16ML100MEFC6.3X7
Prasi designed some tiny SMD dual regulators for me using DPak 78/79xx regs, they have rectifiers so can run the Muses from separate winding if necessary. I have had great success using diamond buffers on Muses output. Sjostrom super buffers are very good if you can handle the size. Muses and buffers both fed by the same SMD regs. A nice 'front end'. 🙂
Not sure if this is useful to anyone about to buy components for Meldano Muses boards, but I found some ultra miniature caps by Panasonic ECE to fit seated properly between boards. No reason other than making things tidy 😉
ECE-A1AKS470
For C2/C4 on the attenuator boards, I have Rubycon ML 100uF 16V:
16ML100MEFC6.3X7
Prasi designed some tiny SMD dual regulators for me using DPak 78/79xx regs, they have rectifiers so can run the Muses from separate winding if necessary. I have had great success using diamond buffers on Muses output. Sjostrom super buffers are very good if you can handle the size. Muses and buffers both fed by the same SMD regs. A nice 'front end'. 🙂
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