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Marxon

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Posts posted by Marxon

  4. SSD1306 128x64 OLED Displays

    in Bulk Orders

    Posted · Edited by Marxon

    Hi everybody!

    I want to start a bulk order of SSD1306 OLED displays

    LINK

    Here are the technical details:


    Controller:SSD1306
    Pixels: 128x64
    Panel Size: 26.70mm x 19.26mm x 1.85mm
    Active Area: 21.74mm x 11.2mm
    Module size:28.mm x 27.1mm
    Dot Size: 0.15mm x 0.15mm
    Drive Duty: 1/64 Duty
    Support interface: 6800/8080, parallel interface, IIC, 4 SPI, 3 SPI
    Voltage:3.3V

     

    They are available in 3 different colors.

    White
    post-4098-0-93007400-1407609460_thumb.jp

    Blue
    post-4098-0-44780800-1407609445_thumb.jp

    Yellow-Blue
    post-4098-0-95956900-1407609471_thumb.jp


    The pinout is somewhat different than in Thorsten's schematic but
    i have already tested the displays and they are working without problems
    on my LPC1769 and STM32F4 cores.


    ------------------------------------------------------------------------------
    The Dealer offers following prices:


    if ordered      1pcs = 5,80€ / 7,78$ per pcs.
    if ordered >=  50pcs = 5,35€ / 7,18$ per pcs.
    if ordered >= 100pcs = 4,66€ / 6,25$ per pcs.
    if ordered >= 200pcs = 4,25€ / 5,70$ per pcs.

    Everyone pays the same price per pcs.
    regardless how many Displays he ordered
    ---------------------------------------------------------------------

    Shipping:
    Germany (unversichert) = 1,45€
    Germany (versichert) = 5,40€
    International (uninsured) = 3,45€ / 4,90$
    international (insured) = 7,10€ / 10,06$

    (Shipping costs can be reduced
    if the pin header is cut off
    so the Display takes less space)
    -----------------------------------------------------------------------------------


    Orders can be submitted until 07 September 2014.
    Shipping to me in germany will take 4-6 weeks.
    Afterwards it will take another 3-30 days (depending on distance)
    until all displays reaches their owners.
    -------------------------------------------------------------------------------------

    Payments can be done via Paypal.
    (payments from germany can be done by bank transfer)
    Paypal fees = 1,9% + 0,35€ / 0,47$
    -----------------------------------------------------------------------------------------


    ORDER LIST

    Simply reply to this topic and write down your name, quantities, display color and shipping destinaion. 
    Use your full and correct forum name, so I can reach you via PM.
    Everybody gets an order confirmation and
    an invoice after the order deadline

     


    By putting your name on the list you agree to the terms and conditions described here:
    www.midibox.org/dokuwiki/nils_bulk_terms


    Best regards
    Marxon
     

  5. [Q] SSD1306 connection (BS0, BS1, BS2)

    in Parts Questions

    Posted · Edited by Marxon

    My settings:
     

    - all BS bridges are set to 0
    - voltage jumper is set to 3V
    - lcd_type is set to 0x84
    - led_num_x and lcd_num_y are set to 1
    - lcd_heigh and lcd_width are set to 128 respectively 64

    At the moment i am using just the bootloader app.

     

     

    EDIT:

    I've just noticed the following:
    After changing the number of displays with the bootloader app,
    then MIOS studio does initialize them and reports which displays failed to initialize.
    If i use character displays and connect less character displays than i have set,

    MIOS studio reports the missing ones correctly.
    But when i use SSD1306 displays, then MIOS studio does not recognize missing ones

    regardless how much displays have been connected.
    Is this a normal behavior?
     

  6. [Q] SSD1306 connection (BS0, BS1, BS2)

    in Parts Questions

    Posted · Edited by Marxon

    Hi again and sorry for my late reply!

    I tried to connect the display to Port J10B of my STM32F4 core

    but it still does not work. :( The led goes on but the display shows nothing.

    Is there any minimum configuration (like connecting Vdd, Vss and Vo of a standard display)

    to test if the display is generally working?

    Best regards

    Marxon

  8. [Q] SSD1306 connection (BS0, BS1, BS2)

    in Parts Questions

    Posted

    Hi novski!

     

    Sorry my schematic was not the best choice.

    It´s more to show the different pinout of the JY-MCU display

    compared to the one from TK HERE.

    Of course i dont use the same CS line for both displays and no second resistor/ capacitor :smile:

    Nevertheless i have connected D7 instead of D0 to the display CS pin, like you said but it still does not work.

  9. [Q] SSD1306 connection (BS0, BS1, BS2)

    in Parts Questions

    Posted

    Hi all!

    I have exactly the same display but unfortunately i cant get it work on my STM32f4 core.
    The screen stays black only the led gets on.
    My core module should be OK because character displays are working properly.
    Settings:
    - all BS bridges are set to 0
    - voltage jumper is set to 3V
    - lcd_type is set to 0x84
    - led_num_x and lcd_num_y are set to 1
    - lcd_heigh and lcd_width are set to 128 respectively 64
    Thats my display wiring:

    I soldered 1k resistor and the 10uF capaciator directly on the core board and
    added a connection from the core to the display RES pin.
     
    What could be problem?
     
     
    Best regards
    Marxon


     

  10. multiple SSD1306 Displays

    in MIDIbox NG

    Posted

    Hi TK!

     

    MIDIbox NG supports only a single display type.

     

     

    Oh OK, i did not know that. But that´s no big problem.

    To use a second display was anyway an optional idea.

    If really needed then i still can use a second core,

    But maybe it would be helpfull to mention this "circumstance" in the LCD chapter from the NG manual.

     

     

    Have a nice weekend!

     

    Best regards

    Marxon

  12. multiple SSD1306 Displays

    in MIDIbox NG

    Posted · Edited by Marxon

    Hi novski!

     

    Thanks for your info and your board looks nice too!

    Do I see correctly that you moved the 595 from the core to the lcd board?

    Are short lines from the chip to the displays better? Or is it because an easier chaining of your display boards?

     

    Another NG question:

    Is it possible to use different LCD types at the same time?

    Because i like to use four SSD1306 and two 16x4 displays connected to J15A respectively J15B

    but i guess it´s not possible because there are only two "enable" (E) outputs...?

     

    Best regards

    Marxon

  13. multiple SSD1306 Displays

    in MIDIbox NG

    Posted

    Hi Midiboxer!

     

    I have a question about connecting multiple SSD1306 displays:

    Do i need a 10k resistor and a 10uF cap on every display or would it be enough

    if i use just one resistor and one cap on the core board only?

     

    Thanks for your advice!

     

    Best regards

    Marxon

  17. NRPN - "current instrument"

    in MIDIbox SID

    Posted

    This sounds like you are complaining me that encoders can't be "simulated" via SysEx or NRPN... :-/

     

    No, of course not! That was just an observation.

    Which might could have been wrong.

    So i stated "i can´t find any Sysex or NRPN..." and not "there is no Sysex or NRPN..."

    :angel: :angel: :angel:

     

    It shouldn't be so difficult to add a pragmatic solution as long as it doesn't need to be documented, because I guess that you are they only guy who is interested on such a remote control...

     

    Sorry that I'm the only one . :sweat: 

    No documentation needed. I promise!

     

     

    Note that feedback won't be possible (too difficult to implement) - means: you won't be able to send the current values to MBNG, e.g. for LCD display or LED ring updates.

     

    Good to know but so far I haven't even thought of.

     

    Thanks for your response and have a nice weekend!

     

     

    Best rgards

    Marxon

  18. NRPN - "current instrument"

    in MIDIbox SID

    Posted

    Ok, thank you Thorsten!

    And what´s about the SID control surface encoders itself?

    I can´t find any Sysex or NRPN which "simulate" them.

     

    Englisch kann ich das evtl nicht genau erklären... Was ich meine ist, dass

    ich anstatt die NG mit eigenen Encodern auszustatten,

    gerne die Sid eigenen 10 Control Surface Encoder (die 4 LFO/Filter Encoder jetzt mal nicht mitgezählt :smile:) nutzen möchte

    und die NG quasi einfach davor zuschalten.

    Die verschiedenen Funktionen/Parameter der Encoder lassen sich zwar per Sysex/NRPN steuern,

    die Encoder selbst (sodass sich ihrer Funktion je nach Menü ändert) aber scheinbar nicht.

    Gibt es da eine Lösung? Vielen Dank für deine Hilfe!

     

    Best regards

    Mfg

     

    Marxon

  19. NRPN - "current instrument"

    in MIDIbox SID

    Posted · Edited by Marxon

    I just remember that I have (due your tip with the MidiRex) a unused LPC core.
    Maybe i build a small MidiboxNG with:
    -1 encoder to select the current instrument
    -8 Encoders for the drum parameters
    -some buttons to select the drum model

    Or even better would be to use the Sid encoders itself.
    I imagine something like this
    post-4098-0-48924000-1403906672_thumb.jp

     

    What do you think about it?

     

     

    Best regards

    Marxon
     

    EDIT:

    Maybe it´s better to move this post to the MidiboxNG section.

  20. AVR-Synthesizer "WAVE 1"

    in Deutsch

    Posted · Edited by Marxon

    Hallo Rolf,

    es ist wirklich interessant, deinem Synth beim Erwachsenwerden zuzusehen!

    Mich würde noch interessieren, auf was sich die Bautteilkosten

    beim aktuellen Stand des Gerätes belaufen?

    Gruß

    Marxon

  23. 4xMBHP_CORE : need to solder LCD and MIDI components?

    in Parts Questions

    Posted

    Hi Alchemist,

     

     

     

    - The regulator part: IC3, X1, C5 and C6 (power through J2)

    - The LCD part: P1, P2, T1, R4 (and R3?), but well use 1N4148 diodes for the CAN bus

    - The MIDI part: R5, R6, R7, R8, R11, D1 (recycled for CAN bus), IC2, J12, J13?

    - The DIN/DOUT buses: J8 and J9

    - The AIN/AOUT buses: J6 and J7

    Is it correct?

     

    AFAIK you can leave out these parts except R9 and R10.

     

     

    EDIT: and do I need 1 banckstick per core, or is it shared from core #1 to other cores?

     

    You can connect up to 8 Banksticks to one core.

    They are shared between all cores.

     

     

    Best regards

    Marxon

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