Looking for Basic LED Feedback for Original AKAI APC40 file

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  • Looking for Basic LED Feedback for Original AKAI APC40 file
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Happy holiday folks,

I am Looking for Basic LED Feedback for Original AKAI APC40 file

I use the device with Millumin Media Server Software

Not pick AT ALL. I work in the dark and it would be easier if the keys would lit up.

I spent a day reading and coding, and I kinda got it, but no matter what I do I can’t keep them lit.

 

Any help is appreciated

 

Alex

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Posted by (Q&A Forum: 1, Answers: 1)
December 5, 2018 9:08 pm
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Private answer

Hi, feel free to look around and search on APC-40. There may be something out there already, however my guess is that whatever you find will probably require some customization. If you know the note numbers for the pads and the note velocity values for the different colors, it should be pretty straight forward.

I’ve done similar exercises for other controllers in the past but we are talking probably an hour or two of work for all 64 clips (Doesn’t the APC40 only have 40 clip buttons)?

Basically what you would do is something like this

Incoming Note-On note 0 on APC40 any velocity
Rules
// Toggle global variable for that note. Lets set this one to ga
ga=ga^1
// change the values of xx an yy to the velocity colors you want below
if ga==1 then qq=xx
if ga==0 then qq=yy
Outgoing: Note-on Note 0 velocity qq to APC 40

You would use a different global variable and note number for each of the pads.

If you find out you are running out of global variables, then you could use a bitmapping technique to reduce the amount of required global variables needed. Using bitmapping you would need only one global variable for each 32 leds (assuming only one on and one off color) since variables are 32 bit integers in Bome MIDI Translator

 

Let me know if you want me to build a file for you via email and I can provide a quotation.

You might find one I did on the APC MINI out there on this board that is pretty close to what you would want for the APC-40.  Just search on terms such as “APC-MINI” and “bitmapping”.

 

Steve Caldwell
Bome Q and A Moderator and
Independent Bome Consultant/Specialist
bome@sniz.biz

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Posted by (Q&A Forum: 31, Answers: 2435)
December 6, 2018 1:54 am

Thank You Steve!

( at December 6, 2018 10:13 am)

Here are the colors for each velocity f=flash

0-off
1-on green
2-flashing green
3-red
4-f red
5-orange
6-f orange

( at December 6, 2018 10:13 pm)
1
Private answer

Hi Alex,

The APC40 starts up in Mode 0 which means local push of buttons also controls lights. If you want it only controlled remotely and not by local buttons, have MT Pro send it the following Sysex to the controller

 

F0 47 00 73 60 00 04 42 08 01 01 F7

 

This will put it in Mode 2 which will only control LED’s remotely.

To put it back to the default startup mode (Mode 0) send it this:

 

F0 47 00 73 60 00 04 40 08 01 01 F7

This information can be found in the APC40 Programmers Reference manual which can be downloaded from The Akaipro site. The same manual also describes the MIDI that can be sent to it to control the lights.

Steve Caldwell
Bome Q and A Moderator and
Independent Bome Consultant/Specialist
bome@sniz.biz

 

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Posted by (Q&A Forum: 31, Answers: 2435)
December 5, 2018 9:51 pm

Steve, thank you for the quick reply.
I do not want the Software (millumin) to control the LED behavior. The feedback implementation is rudimental and worthless to me.
The APC40 in mode 0 is acceptable. Just looking for someone who has a file with the following behavior:
Launch Clips (1-64) Green at boot – Red if pushed – Green if pushed again (released)
I have other relevant keys flashing green which is not great, but that’s all I get in mode 0
Since the APC-40 has been out for over a decade, I figured there may be a file out there.

Sincerely,

Alex

( at December 6, 2018 12:03 am)