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zaordsword

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  6. Sur MIDIO128, faire un accord en envoyant plusieurs midi en appuyant sur un touche

    in Français

    Posted · Edited by zaordsword

    Bonjour,

    Je cherche une solution pour pouvoir faire envoyer plusieurs noteOn  pour créer un accord a 3,4 ou 5 sons (en fonction de la table excell .MIO) lors de l'appui sur un bouton d'un DIN module d'un midibox STMf4 avec l'appli midio128 (https://github.com/midibox/mios32/tree/master/apps/controllers/midio128_v3/src).

    Je pense qu'il y a un peu de code à réécrire dans l'application MIDIO. Quelqu'un pourrais m'aider ?

    Voila l'idée: Dans une ligne du fichier patch :

    #DIN;SR.Pin;USB1;USB2;USB3;USB4;OUT1;OUT2;OUT3;OUT4;RES1;RES2;RES3;RES4;OSC1;OSC2;OSC3;OSC4;Mode;OnEv0;OnEv1;OnEv2;OffEv0;OffEv1;OffEv2
    DIN;12.D3;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0;0x90;0x30;0x7F;0x90;0x30;0x00

    Je voudrais pouvoir rajouter dans les Notes OnEv0,OnEv1 et OnEv2 plusieurs messages midi qui correspondraient a les différentes notes de mon accord et modifier le code de l'application pour qu'elle detecte le nombre de messages midi (séparé par exemple par des espaces) et que le contrôleur envoie 3 messages si il trouve par exemple 0x90 0x90 0x90;0x30 0x32 0x35;0x7F 0x7F 0x7F;0x90 0x90 0x90;0x30 0x32 0x35;0x00 0x00 0x00

    Merci d'avance pour votre aider pour cette problématique !

     

     

  7. Ajouter un contrôle de la vélocité a l'aide d'un capteur de pression SPI pour un MIDI128

    in Français

    Posted

    Bonjour à tous,

    Je cherches une solution pour pouvoir faire varier la vélocité de chaque note d'un DIN module d'un midibox STMf4 avec l'appli midio128 a l'aide d'un capteur de pression de type BMP280, assez largement utilisé avec arduino pour midifier des accordéons par exemple.


    Ca fait des mois que je galère. On trouve déja les drivers de ce capteur interfacé en i2c ou en spi pour arduino, et j'aurais besoin d'aide pour  pouvoir coder ca dans l'application midio128.

    Je vous joints les deux drivers qui sont codées en C pour arduino et un driver codé en python que j'ai testé également.

     

    Merci d'avance pour votre aide à tous :)

    bme280.py measurment.txt BMP280.h BMP280.cpp

  8. MIDIO128 V3

    in MIDIfication

    Posted

    Hi,

    Is it possible to define a Input putton to play a chord, like from DIN module and STMF4 the D1.1 send 3 midi messages simulteanously for exemple C2 E2 G2 ?

    This is for midify an left side of an accordion.

    Thanks by advance

  10. Modify the velocity of all notes of a DIn module with MIDI128 with a I2c sensor

    in MIOS programming (C)

    Posted

    On 2/17/2021 at 6:52 PM, latigid on said:

    Maybe it would be easier for you to use the Arduino and output an analogue voltage to be read by the STM32F4 AIN? That way you can use your working system without much extra coding effort. MBIO supports AIN either on the MCU ports J5A/B or using the AINSER module (typically less noise on the signal).

    Do you have any idea to do that, I have worked a lot on it but still I don't know how to do that.

    Thanks by advance for your helps

  11. Modify the velocity of all notes of a DIn module with MIDI128 with a I2c sensor

    in MIOS programming (C)

    Posted

    For SPI I have this question :

    1) Should I create a special new file for my driver (for exemple bmp380.c ), or should I modify another file existing file in the MIDO128 project and add my code into ?

    2) In which file should I need to declare my new SPi driver ? I had a look in MIOS-32spi.c /.h and it seems the declaration is on this file but I am not sure

    3) Is there a IDE specially adapted for coding MIOS ? Eclispe ? Borland ? something even better ?

     

    Quote

    There is some module board which convert SPI to Analog, that could be a easy solution.

    So 2 maybe more "easy" questions :

    1 ) How can I calibrate my Ain threshold on MIDIO to say for exemple that a +0.4V correspon to 0 velocity and 4.5 correspond to 127 in velocity ?

    2) How can I set that this realtime velocity given by the AInput is applied to all the MIDI event from the DIN module ?

    Thanks a lot, I really hope that I could fond a solution


     

  12. Modify the velocity of all notes of a DIn module with MIDI128 with a I2c sensor

    in MIOS programming (C)

    Posted

    Hi,
     

    On 2/13/2021 at 8:41 AM, latigid on said:

    Maybe you can try to code a driver for a similar sensor with an SPI interface?

    The bmp280 is also working with SPI interface !
    Do you think it could be more easy do use this kind of interface ?
    Do you have exemple of coded drivers working with SPI interface working with MIOS32 that could be closer than wroting a driver in I2C interface ?

    Thanks by advance !

     

  13. Modify the velocity of all notes of a DIn module with MIDI128 with a I2c sensor

    in MIOS programming (C)

    Posted · Edited by zaordsword

    Hi latigid !

    Thanks for your answear :)

    >>have you written a driver for it to be used with MIOS?


    No, I don't know how to wrote the driver working with MIOS, but I have a script for making it working with arduino and python.
    Do you have examples of drivers ? I have see nothing about this topic anywhere on ucapp or on wiki or documentation and forum ...

    The bmp280 is a pressure / temperature and humidity sensor manufactured by boch. I join the datasheet, my python and a arduino script. (c ++)

    Edit: I had upload server -200 error when I try to up the datasheet . It's a project exemple availble here. The datasheet is on le page or  datasheet



     >>How would you expect the velocity values to be modified?
    The sensor give the barometric pressure . I plan to save the atmospheric pressure at initialization as P0 and find the realtime surpressure like P_surpess= ( Press_sensor(t) - P0) 

    Then I would like to map a certain variation of pressure matching with the velocity from 0 ... 127

    >>Have you looked into the MBIO code?

    What is MBIO code ? If you talk about the code on github there is a lot of file and I don't know where to find the file where to modify or to put a driver.
    I did not find documentation of a list of the reference classes / function. 

    BMP280.cpp BMP280.h measurment.txt

    bme280.py

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