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  1. hmmm- interesting - thanks. TBH - I haven't...

    hmmm- interesting - thanks.

    TBH - I haven't updated either (IDE or Teensyduino) is a very long time.

    Maybe now is the time.

    Cheers
  2. Variable name stopping Switch from working - weird!!!

    I've just spent the last few days troubleshooting a really annoying problem with a Teensy 3.6 project of mine.

    I have 24 (3 x banks of 8) momentary switches connected to Digital inputs.
    One...
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    Hi sorry for slow response. Believe I got the...

    Hi sorry for slow response.
    Believe I got the library from here:
    https://www.digole.com/forum.php?topicID=1

    I had already tried various values for Wire.setClock - nothing seemed to make a...
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    The Digole displays come with their own library...

    The Digole displays come with their own library for sending data (text, shapes etc) to them.
    So apart from the include for wire.h - all commands for sending the data are Digole specific commands....
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    Thanks. I picked up v11.0 already. It's the...

    Thanks.

    I picked up v11.0 already. It's the only 1 I've tried.
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    Hi nox771, Thanks for getting back on this. ...

    Hi nox771,

    Thanks for getting back on this.

    Before I waste any of your time trying to help me - as I could be trying to achieve the impossible here.
    Would you expect your library to help...
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    Oh well - I've just spent the last 3 hrs reading...

    Oh well - I've just spent the last 3 hrs reading up on this i2c_t3 library & tbh - I can't make head nor tail of what I need to do to increase the speed.
    Nothing I do seems to change anything.

    Do...
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    OK - by total luck I found what was causing the...

    OK - by total luck I found what was causing the code to not run after uplaoding to Teensy.

    I had this is line in my Void Setup()

    Wire.setClock(400000);

    It was left over from my original...
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    Hmmmm So 2 things. 1] Ref doh - I hadn't...

    Hmmmm

    So 2 things.

    1] Ref doh - I hadn't put that in the correct folder. Finally realised that when I noticed I wasn't getting the Warning for Mulitple libraties found.
    Fixed that - so now...
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    Errors are:

    Errors are:
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    Oh OK - I thought (mistakenly) from reading the...

    Oh OK - I thought (mistakenly) from reading the posts on that subject that teh "simple" changes made avoided having to modify other libraries
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    Hi 1bit Can you recall exactly what you did to...

    Hi 1bit

    Can you recall exactly what you did to get the digole library working with i2c_t3.
    I've followed the links & used teh suggestions but it wont compile.Feel I'm missing something
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    Hi - old post I know - but I'm trying to do teh...

    Hi - old post I know - but I'm trying to do teh samer think but with teh DigoleSerialDisp libray displays.

    Any idea of this method should work with teh digole library too?

    Using the std wire...
  14. Was just looking to the i2c_t3 library you...

    Was just looking to the i2c_t3 library you suggested.

    Can't confess to understand how the DigoleSerialDisp library was interacting/interfacing with the Wire library - but to get that working I had...
  15. Thanks Michael. That was going to be one...

    Thanks Michael.



    That was going to be one of the things I looked at after hopefully trying afew things on teh i2c side.


    To help me see if I'm going to be chasing shadows here... could you...
  16. Here's my code for teh data writting - just...

    Here's my code for teh data writting - just incase its a code rather HW issue.


    void InstanstAccess_LCDs()
    {
    int Text_H = 5;

    for (int n = 1; n < 2; n++) //n < DispQty; n++)
    ...
  17. I've now tried both methods of topology (getting...

    I've now tried both methods of topology (getting a bit tired of soldering now tbh :) ).
    Cables are just butchered Jumper wires - so nothing special or shielded.

    Anyways - Both seem to work...
  18. Thanks I was powering the displays off teh 5v...

    Thanks
    I was powering the displays off teh 5v Vin pin.
    But using the 3.3v pin fr the pullups.
    Is that the prefered way.

    \Guess |I should not use teh 5v supply of the pullups - right?
  19. just wondering if I've made an error in teh way...

    just wondering if I've made an error in teh way I've wired these displays up too.

    In essence, each of teh 8 displays has its 2 x i2c wires (each ~300mm in length) connected to a rail/bus on a...
  20. Thanks mate. I quick look at those links tells...

    Thanks mate.

    I quick look at those links tells me all that stuff is way way way over my little head I'm afraid.

    Guess I'll have to stick withtrial & error.
    Started of with 4k7 ohm
  21. hmmm is the position of the i2c pull up...

    hmmm
    is the position of the i2c pull up resistors critical.
    gone from being within 20mm from teensy to about 300mm and now getting corrupted displays.

    could possibly the soldering as my iron...
  22. Yep - will do. Thanks again

    Yep - will do.

    Thanks again
  23. 17108 Flux & new tip did the trick. #8 now...

    17108

    Flux & new tip did the trick.

    #8 now up & running.

    Thanks for all teh help & support!!!
  24. OOOP!!! Feel bad now - after Ive seen your reply....

    OOOP!!! Feel bad now - after Ive seen your reply.

    Sorry - I should have been clearer - it was the jumper pads on teh Digole display that I fried.

    I did the same on teh 8th of the forst batch of...
  25. Dont believe it. Managed to burn out the i2c...

    Dont believe it.

    Managed to burn out the i2c jumper pad again whilst soldering - aarrrg!!!!

    Any idea if there is anywhere else on the board I can jump out to configure this for i2c comms pls?
  26. Cheers mate! Worked a treat - thanks!!! ...

    Cheers mate!

    Worked a treat - thanks!!!

    Been battling for days with this.

    Any chance you could re-write the whoile manual so its easier to understand :)
  27. TRhanks - I'll take a look. BTW - I'm using a...

    TRhanks - I'll take a look.

    BTW - I'm using a Teensy MPC with arduino.
    So I've been using teh arduino commands listed in manual.

    Am I still able to send te other commands listed in the manual...
  28. One other thing - is there any way to use excel...

    One other thing - is there any way to use excel &VBA to calculate the resulting color from a BITWISING operation?

    I see the digole displays use 8 bit (256) colour - where the inputted integer (0...
  29. TBH - I don't find the manual particularly easy...

    TBH - I don't find the manual particularly easy to follow (probably just me).
    Just looking for something a little more detailed & easier to follow
    Hence my request.
  30. oops - sorry about that - yes you did :o

    oops - sorry about that - yes you did :o
  31. Update on my project ref OP. So I ordered 8 of...

    Update on my project ref OP.

    So I ordered 8 of the Digole 160x128 OLED displays as mentioned by Michael in Post #10 (Thanks Michael - btw).
    Got 7 of them hooked up and running on I2C OK-ish...
  32. Oops - sorry never mind. Pins 18 & 19...

    Oops - sorry never mind.

    Pins 18 & 19 corresponds to A4 & 5.
    Doh!!!
  33. HI - my Digole displays have arrived. I've...

    HI - my Digole displays have arrived.

    I've loaded the Digole library - but I see from one of the sample sketches that the SDA & SCL pins are set to/defined as 4 & 5 respectively.


    #if...
  34. ha im glad yiu said that...as that exactky whst i...

    ha im glad yiu said that...as that exactky whst i did.
    cheers
  35. Also - can you expand on this too pls?

    Also - can you expand on this too pls?
  36. Thanks Michael definitely food for thought. Ref...

    Thanks Michael definitely food for thought.
    Ref having to change the address - can you elaborate on how I would do this pls?
    DO I need any additional HW/SW?

    EDIT: oops never mind sorry - just...
  37. thanks for the detailed response. appreciate the...

    thanks for the detailed response.
    appreciate the time it must have took.

    I've seen the single or 2 colour 12c ones.
    but nfortunately it's the multi colour feature thst I need.
    as I'm wanting to...
  38. yeah I said that because it sounded way over my...

    yeah I said that because it sounded way over my head.
    thanks though.
  39. by small I mean 1.4 or 1.8 inch max. refresh...

    by small I mean 1.4 or 1.8 inch max.
    refresh won't be any thing fast.
    all will just display simple text (2 rows each of 8 chars max) & a simple symbol. updated once after a press of a switch....
  40. OK thanks Kurt. Sounds like it may not be a...

    OK thanks Kurt.

    Sounds like it may not be a good option.

    Does anyone have any suggestions on teh best way to achieve what I'm after then pls?

    ie 8 small displays - for displaying...
  41. 8 x 1.44/1.8'' inch 128x128 128x160 TFT Full Color SPI LCD Display Modules over SPI

    Hi - does anyone know if it would be possible to hook up 8 of these 1.44/1.8'' inch 128x128 128x160 TFT Full Color SPI LCD Display Modules to a Teensy 3.6 (via SPI) - for displaying 8 different...
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    At exactly what point does MIDI.read flip from ...

    At exactly what point does MIDI.read flip from true to false.

    I tried monitoring the value Midi.Read() at various places in my code but its always 0.
    even at teh start of my callback (void...
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    Thanks for all the help so far. I think I have a...

    Thanks for all the help so far. I think I have a better understanding now.

    One oither thing.

    Is it possible to extract the FULL/WHOLE midi buffer in 1 go?
    I think all we've discussed so far...
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    So any ideas on the best/prefered way to read...

    So any ideas on the best/prefered way to read multiple msgs from the buffer?

    IN my application, I will be sending 1 or 2 sysex's & trying to read the several ( possibly up to 4 msgs) that get...
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    Thanks again - so to summarise with regards midi...

    Thanks again - so to summarise with regards midi sysex msg's:

    1]calling Midi.read() [on its own] - checks to see if there are any sysex msg's in the serial buffer.
    If there are (ie returns...
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    Thanks also. It was more the midi.read() piece...

    Thanks also.
    It was more the midi.read() piece of that code I was after - sorry.

    I didnt appreciate that if there were no msgs to be read that it returned false.
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    Brilliant thanks. I didn't understand teh...

    Brilliant thanks.
    I didn't understand teh difference between just



    midi.read()

    and

    while (midi.read())
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    while (midi.read())

    Hi - really basic question, but could someone pls explain exactly what sticking "while" in front of midi.read does pls


    while (midi.read() )
    {
    do something
    }
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    Midi serial buffer

    Hi - any one know of a useful resource (web based) for understanding the midi serial buffer.

    ie what it looks like, how it works etc.

    Thanks
  50. Stategy for Programming a DIY foot controller

    A few years ago, I embarked on a project to build & program a midi foot controller for my AXEFX2.
    I managed to do this with a little success, but I've never been fully happy with the performance...
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