MIDIbox of the Week (monodeck II)
#1
Posted 20 August 2006 - 00:24
the monodeck II designed by monolake aka. Robert Henke
is finally done. Control software development (which is done by
Robert and is runnning on the host computer) will continue and
for sure see refinement after the experience from the first gigs,
but the device itself is finished.
Thank you very much for your hard and nice work.
MIOS and MIDIBOX are a great platform.
Have a nice life, you deserve it!
http://www.monolake.de/monodeck2.html
Ralf
#2
Posted 20 August 2006 - 02:52
I'm really interested in your RGB LED driver, is there any chance of you sharing that? I've got 150 of those things here and I was planning on writing a driver later on when I get to the CS....
#4
Posted 20 August 2006 - 10:07
I should've searched your previous posts :) http://www.suckow.de...4x20/index.html
Thanks!!
#5
Posted 20 August 2006 - 11:49
It does look very cool, though!
Best regards, ilmenator
#7
Posted 20 August 2006 - 14:04
this is one of the most beautiful controllers I've ever seen - I'm impressed!
The design demonstrates your full passion for this baby :)
Best Regards, Thorsten.
#8
Posted 20 August 2006 - 14:44
isn't it a bit hard to carry? hey I've got a really light MB16 lying next to me.
I think you've got a better overview with only 6 sliders, 6 pots and 8 buttons...
.....wanna trade ? ;D ;D
#10
Posted 21 August 2006 - 19:55
Quote
I should've searched your previous posts :) http://www.suckow.de...4x20/index.html
Thanks!!
The software has been rewritten for the monodeck:
- based on midibox64 (not ...e) since we need no encoders but lots of pots
- the color of one, four, or all LEDS are set using MIDI notes
- there is a mapping which lets the buttons and LEDs be related to the same
note number, with a nice numbering scheme over the whole device,
which compensates for the anarchistic wiring
- the bitmap calculation is done when the note arrives,
so that the multiplexing routine is simpler and faster
- software dimming (1:1 ... 1:4, more is not possible since it flickers)
- two cores are linked, the software is modified so that one core
is responsible for LEDs/Buttons 0..63, the other for 64..127
- the schematic is a bit different, because the LEDs are RGB, not RGBB
- I disabled the button debouncing, else the LEDs would flicker
In general we would publish the info, IMHO, if somebody is
interested, there's just no time at the moment, Live6 is in the
beta phase, and then I'm on vacation until End of September
- lucky me 8)
Ralf
#11
Posted 21 August 2006 - 20:14
Quote
Best regards, ilmenator
Yes, on the photos they appear a bit lighter than in reality.
And you are right, a 1:4 software dimming is not enough.
The maximum setting allows playing in direct sun, 1/4 of that
is still too bright for the night. So, Robert invented and added a
hardware dimming which is a separate circuit for each color:
a square signal generator with adjustable busy cycle, which
turns the enable inputs of each of the shift registers on and off,
with a relatively high frequency, to avoid flicker. This not only
allows to setup the monodeck for performances at night, it also
allows to ajust the relative color brightness, which is important
for nice clean colors and the white balance.
Based on this setting, Robert can now fine-tune the brightness,
depending on the situation, with the software, quickly.
Ralf
#12
Posted 21 August 2006 - 20:25
Quote
This is something what I'm planning to solve in one of the next MIOS versions - currently the same SR scanning routine is used for DIN and DOUT registers, which means, when the DINs are temporary disabled due to the cheap debouncing method, the DOUT registers won't be updated.
The solution is to add a second scan routine which only services the DOUTs so long the debouncing delay is active.
Best Regards, Thorsten.
#13
Posted 21 August 2006 - 22:00
Yes, it is done. After almost one year of hard (brain) work. I will spend all september with the preparation of a new Monolake live set which is to be performed using the Monodeck. The plan is to get rid of the computer on stage and to run the show entirely from the hardware controler, even without the need to watch a computer screen. I might contribute / answer questions here at the forum but I am not sure how much time I will find for this. We will see....
Thorsten, thank you for all your work & knowledge - much appreciated.
Robert
#14
Posted 22 August 2006 - 01:26
I understand that you're a bit busy to document your findings, but if you could just make the code available, it could serve as a starting point for others... I'm not the only one working on a LED matrix at the moment :)
I hope you'll record the show for us too!
#15
Posted 22 August 2006 - 12:24
Quote
Quote
This is something what I'm planning to solve in one of the next MIOS versions - currently the same SR scanning routine is used for DIN and DOUT registers, which means, when the DINs are temporary disabled due to the cheap debouncing method, the DOUT registers won't be updated.
The solution is to add a second scan routine which only services the DOUTs so long the debouncing delay is active.
Best Regards, Thorsten.
Aah, this would explain why my ledmatrix keeps flickering :)
I thought I made some kind of wiring error
very interesting topic :)
#16
Posted 22 August 2006 - 14:02
Good work on the Led Matrix, I'm currently planning a 7x8 button grid for triggering clips in ableton (6 channels and one coloumn for the scene triggers) so yours will be an invaluable resource!
#17
Posted 22 August 2006 - 14:08
#18
Posted 22 August 2006 - 17:29
Quote
I too, would like to see that thing in action!! ;D thanks
#19
Posted 22 August 2006 - 18:06
Good job
-tel3
#20
Posted 31 August 2006 - 17:17
One thing that is missing (if he does intend to use this without looking at his computer screen) is the LCD display!? Especially now with features such as Automap (by novation) it would have been really useful to have a display setup that would tell you the name of tracks, name of clips playing...maybe even a sample/preset browser for loading up your step sequencer or programming synths/fx?
I guess I need to build my onw ;)



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