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  1. Hi Nock, I'll luook for a snippet of code in my...

    Hi Nock,
    I'll luook for a snippet of code in my projects and try to post it here in the next few days

    Stefano
  2. Yes, it would be better to reverse the button...

    Yes, it would be better to reverse the button matrix diodes...

    For the leds (see the current implementation below) I was thinking to use something like 74HC595 or there are better choices?
    ...
  3. I found some time today to "study" your...

    I found some time today to "study" your suggestions (You know how it happens: click one link, read that article, then follow that other link, read there, but wait what's that? search Google...e tc...
  4. Today I reserved a couple of hours to read your's...

    Today I reserved a couple of hours to read your's project documentation and to try the online editor/configurator (but I haven't any Teensy with me to connect...)
    It's an IMPRESSIVE work!
    It could...
  5. Jannik and John, thank you so much for your...

    Jannik and John,
    thank you so much for your suggestions and for all the hard work you have put in it.
    Now I have something to study for the next days :p ...

    I can dedicate only few horus a week...
  6. Thanks for your feedback! I have problems...

    Thanks for your feedback!



    I have problems understending the above sentece, it could be my bad English or my bad electronic knowledge :o
    Could you elaboarate on it?


    Unfortunately the...
  7. Re-doing my Hammond MIDI controller: ideas and suggestion needed

    Hallo,
    sorry for the long post, but I'd love to have your suggestion on my next project.

    A premise
    Last year I finished my MIDI drawbars Controller based on Teensy LC and since then I used it on...
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    Nice! Thanks for sharing :-) Stefano

    Nice!
    Thanks for sharing :-)

    Stefano
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    Hi Glenn, I'm Stefano, the author of the project...

    Hi Glenn,
    I'm Stefano, the author of the project you found on Hackaday. :)
    You can find the thread about building it in this forum too:...
  10. Your project looks very promising and...

    Your project looks very promising and interesting, moreover considering the hight number of MIDI cntroller projectss here on the forum.
    I'm sure taht if you'll open source it on github you wil have...
  11. Thank you for the pictures and the explanation :-)

    Thank you for the pictures and the explanation :-)
  12. Very interesting! I barely understood how the...

    Very interesting!
    I barely understood how the led/photoresistor thing works for velocity, but looks like a brilliant idea... can you explain more about it?

    Thans

    Stefano
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    I get the "Multiple libraries were found for.."...

    I get the "Multiple libraries were found for.." error all the times I compile a sketch without disabling "real time" protection in the PC's antivirus: it doesn't allows some temp file's rewriting...
  14. [resolved]

    The last weekend I opened the controller and checked the circuit... and as Paul suggested it was wrong...
    I used the 6N139 but connected as if it was a P900 or maybe something else...

    So I...
  15. If it can be useful, I can provide a little...

    If it can be useful, I can provide a little Arduino sketch showing how to receive MIDI from usbMIDI, checking for the CC of your choice and using the CC value for whatever you want.

    Once you have...
  16. In the meantime a re-tested the serial MIDI IN to...

    In the meantime a re-tested the serial MIDI IN to serial MIDI OUT, connecting the OUT to a real MIDI monitor and not only to my musical expander and it proved to send out any sort of garbage too.
    So...
  17. Hi Paul, thank you very much for your deep...

    Hi Paul,
    thank you very much for your deep analysis and suggestions!


    Yes, I start thinking that is an hardware issue... especially now that I ha read your posts :rolleyes:



    Mmmm, I built...
  18. wow, sounds really interesting! I wait for the...

    wow, sounds really interesting!
    I wait for the second part, then! :)
  19. Hi Pete, thanks for your feedback! Hmmm, you...

    Hi Pete, thanks for your feedback!


    Hmmm, you are right, but that code is barely a copy-paste from the MIDI_3x3 example and I presumed it works.

    I'm now upgrading to the latest Arduino and...
  20. So you would like to set say the threshold value...

    So you would like to set say the threshold value of the noise gate (or any other paramater) not using an analog input of the teensy, but instead a value sent from the computer to the teensy via USB? ...
  21. I missed your posts at that time. Very nice...

    I missed your posts at that time. Very nice instruments.
    Have you documented your buildings? I'm in particular interested in how do you "read" the "fake strings" strum and your usage of touch...
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    I second the request ;) Since it's powered by...

    I second the request ;)
    Since it's powered by WordPress it should be just a matter of enabling it (or better: "disable disabling" ;)since I think RSS and ATOM are enabled by default on WP)
    ...
  23. MIDI serial (DIN) to usbMIDI issues: got weird MIDI messages

    The context:
    In my MIDI Drawbar controller based on Teensy LC I use both usbMIDI and serial MIDI (i.e MIDI IN and OUT with DIN plugs).
    The whole thing is configured so it can accept MIDI messages...
  24. Wow brilliant! I have to check your code!! :)...

    Wow brilliant!

    I have to check your code!!
    :)

    Stefano
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    I'm not an expert at all, but I built a number of...

    I'm not an expert at all, but I built a number of MIDI controllers using Teensy and even Arduinos, and me too I'd be concerned to such a radical change.

    I'd suggest, as @JWScotSat said, to just...
  26. I missed your posts when you published them, but...

    I missed your posts when you published them, but thanks for the description and the code too. Very inspiring (and very useful too, since I'm looking to wrap my head around OSC...)

    In the last...
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    Project completed!

    Just a quick note (I hope that I'm not breaking any forum's rule of conduct) to let all of you know that the drawbars MIDI controller (proudly named MIDI Drawbars Commander :p) is almost complete!
    ...
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    It's really an awesome project!! I'm learning a...

    It's really an awesome project!!
    I'm learning a lot reading your code. Thanks for sharing it!

    I'm builing a drawbars controller for my hammond clone but since it's my first Teensy project I'm an...
  29. [solved!]

    I resolved the issue... thanks to all of you!

    As often happens it was a stupid thing: a broken jumper...
    and obviously the inverted pins in the MIDI connector...

    Now I can go ahead with my...
  30. Hi Frank, well it's just an IC socket... I...

    Hi Frank,

    well it's just an IC socket... I used Teensy mounted on it for other testing (5 analog input, some buttons etc) and it had no problem.
    I have to add that I checked the voltage at the...
  31. Swapped pins but still nothing transmitted

    Thank you for pointing out the reversed pin error...
    I swapped the two pins but still nothing is transmitted :(
    I stripped down the script and the circuit too, to be sure that nothing interferes...
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    I too had great problem finding any PC900...

    I too had great problem finding any PC900 avaiable so resolved to buy some 6N137S...
    I'll try them in the next days... and if you don't mind I'll report my results here.

    I'm expecting that just...
  33. Hi Pete, thank you! I changed that line but...

    Hi Pete,
    thank you!

    I changed that line but still nothing happens... :(

    Maybe I have to "set" the USB type to something different? I tried with Serial, Midi, and Serial + Midi... but no luck...
  34. Help me understand where I'm wrong with this Midi DIN out

    I'm trying to make a working Midi DIN output but after several hours checking, debugging etc... I can't get it sending anyting...
    so I'm asking your help to understand where I'm failing...

    I'm...
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    A little update: I changed the schematic I posted...

    A little update: I changed the schematic I posted before, now with the correct potentiometer-to-3.3V connection.
    I'm now looking online to find all the components, and in the meantime I'm planning...
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    Thank you Michael!

    Thank you Michael!
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    Another little question. In my schematics I've...

    Another little question.
    In my schematics I've put a 4.7k Ohm resistor between both the 2 i2c lines and 3.3v as suggested in the Wire reference page, but this post seems to suggest that 4.7k is more...
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    OH I see! Thank you very much! I'll soon post an...

    OH I see! Thank you very much!
    I'll soon post an updated schematic so if someone else will look here he'll not be confused

    EDIT: schematic updated in post #20
    I also attach it here
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    I see only now that my reply to you (posted from...

    I see only now that my reply to you (posted from my cellphone) was lost.

    I too I'm curious to see how the hardware will come out... from my experience in previous projects the HW part is often...
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    Well, I think I read some reference that I can't...

    Well, I think I read some reference that I can't find anymore... or it's just my mis-interpretation of what A(nalog)REF(erence) is.

    Now re-reading the Analog Input How To I'm pretty sure that I'm...
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    😀😀 Well, Thank you... I lost some precious...

    😀😀
    Well, Thank you... I lost some precious working hours... so please don't tell it to my clients that are waiting for their website to go online 😉
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    Sorry for the late reply! I collected all your...

    Sorry for the late reply!
    I collected all your suggestions and I tried to draw the schematic of the whole controller, adding the MIDI IN and OUT interface too.

    If someone of has some free time to...
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    :) well, in any way I learned a lot !! I...

    :)
    well, in any way I learned a lot !!

    I decided to go with the pushbuttons wired directly to 8 PINs and LEds driven via I2C.
    Now if someone could suggest me 2 or 3 different chip for drive the...
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    To which PIN numbers are attached Power and...

    To which PIN numbers are attached Power and Ground of the potentiometer?
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    Yes it would be very easy and stright-forward,...

    Yes it would be very easy and stright-forward, but I'm planning to use each button for more than one function (using one of them like a SHIFT/ALTERNATE key) so I need them act as momentary and using...
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    Thanks to all your suggestions and...

    Thanks to all your suggestions and clarifications. I took some more time to study the links you all provided.
    At the same time I revised the plan for the controller.

    I think that I'll can go with...
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    Thank you for your further clarification. What...

    Thank you for your further clarification.
    What about making a diode matrix for the buttons to reduce the number of pin used? Or a led matrix?
    Does this solution could help?

    The Mux solution...
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    Ops... I forgot to mention I need to have a bunch...

    Ops... I forgot to mention I need to have a bunch of LED... could be 8 or 10...
    If I well understand LED and buttons are connected to Digital pins so to remain in the TeensyLC limit I can have max...
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    Thank you to all for your frendly answers! ...

    Thank you to all for your frendly answers!


    Wonderful, thank you!


    Yes, it's really my plan: to buy one of each... I have other projects in my mind... ;)
    For the settings in EEPROM I'll see...
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    Drawbars MIDI Controller planning questions

    Hallo,
    first time here, Iím Stefano from Italy. :D

    Iím planning the construction of a MIDI Controller and I need some help to decide if a Teensy LC is enough for my needs or if I need the Tennsy...
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