Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: blackketter

Page 1 of 7 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    13
    Views
    1,458

    See the drawings here: ...

    See the drawings here:

    https://www.pjrc.com/store/teensy41.html#tech
  2. I've built a couple of keyboards from Teensy 3.2...

    I've built a couple of keyboards from Teensy 3.2 and 3.6, and I've tested that they'd port to the T4.x boards. I rolled my own software for key mapping, scanning, etc. The hard part is the...
  3. Replies
    524
    Views
    67,522

    Those boards look great! I am curious, though,...

    Those boards look great! I am curious, though, why did you decide to use the M.2 daughterboard arrangement rather than just soldering the module on to the host board?
  4. Ta da! https://github.com/blackketter/GT911

    Ta da!

    https://github.com/blackketter/GT911
  5. Wow, you have my sympathies, Keith_M! (Note to...

    Wow, you have my sympathies, Keith_M!

    (Note to self: ALWAYS buy an extra.)
  6. Replies
    524
    Views
    67,522

    That IS nice. Another thing I noticed there...

    That IS nice.

    Another thing I noticed there is that they added a couple of voltage dividers connected to both USB VBUS and VSYS and connected them to a spare analog inputs to add voltmeters to...
  7. Can you post a picture of the tearing on the...

    Can you post a picture of the tearing on the display? Could be a configuration issue...
  8. Same, 4 wire SPI.

    Same, 4 wire SPI.
  9. Replies
    1
    Views
    187

    Not sure how the age of the ESP8266 is an issue...

    Not sure how the age of the ESP8266 is an issue for you, but they are quite simple to use and cheap and plentiful. They don't have BLE5, though.

    Both the ESP32 and ESP8266 can be put into low...
  10. Replies
    888
    Views
    30,311

    Looking at the schematic, it's surprising that...

    Looking at the schematic, it's surprising that the MicroMod Reset pin is connected to the Teensy On/Off and not a reset as per the MicroMod spec.
  11. Replies
    12
    Views
    755

    Might be better off using a FET and a NO tact...

    Might be better off using a FET and a NO tact switch. It would probably be cheaper too.
  12. Replies
    524
    Views
    67,522

    Or a modified boot loader chip that uses a double...

    Or a modified boot loader chip that uses a double tap or long press on the program button to do a reset.
  13. Replies
    12
    Views
    755

    Alas, no, there is no reset pin available on the...

    Alas, no, there is no reset pin available on the Teensy 4.0 or 4.1. It is possible to do a software reset, but that won't help in the case of a firmware fault.
  14. Replies
    524
    Views
    67,522

    My interest in M.2 was as a cheap, higher density...

    My interest in M.2 was as a cheap, higher density connector and not for mPCIe connectivity. For the Vidor it kind of makes sense given the FPGA on board. The applications that make sense to me for...
  15. Replies
    524
    Views
    67,522

    One way to expand the number of pins available...

    One way to expand the number of pins available would be to provide double-density castellations along the edge. The Alorium Evo M51 does this. Every 0.1" spaced through-hole pin is brought out to a...
  16. I'm able to trigger the "2D ready failed" with a...

    I'm able to trigger the "2D ready failed" with a low voltage on the 5v rail. Could that be an issue for you?
  17. NM, found it. (Wasn't searching in the right...

    NM, found it. (Wasn't searching in the right folder...)

    Apparently the 8876 isn't responding. Not sure why that might be intermittent on my side, but if it happens fo you from the start, Keith,...
  18. Interestingly, I'm seeing "2D ready failed" on my...

    Interestingly, I'm seeing "2D ready failed" on my console too. It's happened twice now after running some demos for a long time.

    Not sure where it's coming from, searching the source comes up...
  19. Yup, I"m on 1.53, though I'm using Platformio. ...

    Yup, I"m on 1.53, though I'm using Platformio. Shouldn't matter.

    And the board is v1.0

    Here are images of my board and wiring for a sanity check:

    24034 2403524036

    Hard to trace out the...
  20. Is it possible for you to test with the...

    Is it possible for you to test with the ER-TFT0784.ino example?

    I just verified that with hardware setup the same as is in there, that sketch works.
  21. Same here. I did have one display that came from...

    Same here. I did have one display that came from BuyDisplay that was misconfigured. Couldn't hurt to double-check the jumpers per the datasheet.
  22. Sorry for the silence. 2828DC / Pin 36 doesn't...

    Sorry for the silence. 2828DC / Pin 36 doesn't need to be connected.

    Not sure what the error "2D ready failed" is...

    One thing to double check is that the display is getting enough power. ...
  23. That IS strange. Can you share your...

    That IS strange. Can you share your platformio.ini contents and confirm that the only change you are making to the contents of framework-arduinoteensy is to replace the cores and libraries...
  24. I believe that the version number it's displaying...

    I believe that the version number it's displaying is obtained from

    .platformio/packages/framework-arduinoteensy/.piopm

    which hasn't changed, but you've replaced the code in the cores...
  25. Replies
    205
    Views
    18,636

    There's an early bit of development being done...

    There's an early bit of development being done for RP2040 support on Platform.io. I was able to do a basic blink application using the Arduino framework with it. Might be worth looking at and/or...
  26. I ported over a bit-banged version of...

    I ported over a bit-banged version of configuration code for the SSD2828 and added it to my fork of the Ra8876LiteTeensy library. You can see the files here:
    ...
  27. Replies
    205
    Views
    18,636

    +1 for PlatformIO and VSCode. The combination is...

    +1 for PlatformIO and VSCode. The combination is remarkably easy use, though it does have a slightly steeper learning curve than the Arduino IDE.

    What the PlatformIO team has accomplished is...
  28. Replies
    12
    Views
    734

    You'll definitely need those resistors (I2C...

    You'll definitely need those resistors (I2C pull-ups, RESET, REXT), so see if you can get them soldered in somehow.

    And looking at the schematic, it seems you are using 5v+ for some of the...
  29. Replies
    12
    Views
    734

    A couple of things to look at: According the...

    A couple of things to look at:

    According the datasheet, you'll need a pull-up resistor on the /RESET pin. Make sure you have that connected before you power it up.
    And you'll need REXT connected...
  30. Replies
    2
    Views
    222

    I can't see from the schematic what is connected...

    I can't see from the schematic what is connected to the reset pin (pin 10 on your connector). I wonder if you'd need a pull-up resistor on that pin.
  31. Replies
    58
    Views
    4,609

    Sorry, I don't have any experience laying out...

    Sorry, I don't have any experience laying out this part, but it looks like there might be room right next to the 19/20 pins there!

    It does look like you'll need the diodes, to ensure that there is...
  32. Replies
    58
    Views
    4,609

    Just noticed one more (tiny) thing. There is...

    Just noticed one more (tiny) thing. There is solder mask between the pads on the jumpers. Was this intended? This might make it hard to cut the trace and/or jump the pins.
  33. Replies
    58
    Views
    4,609

    NICE! I see that you have a note that says...

    NICE!

    I see that you have a note that says "RTC Not Yet Implemented".

    That would be my only suggestion left!

    (Could be like the T3.2 with an optional through-hole footprint. Also,...
  34. Replies
    58
    Views
    4,609

    Terrific! I'm sure you're thinking about...

    Terrific!

    I'm sure you're thinking about these, but I noticed:

    - Why not hook up the BATT_VIN/3 pin to one of the free analog input pins?

    - G8 appears to not be connected to anything and...
  35. Replies
    5
    Views
    436

    Adafruit has ported the awesome Audio library to...

    Adafruit has ported the awesome Audio library to some of their boards. See: https://learn.adafruit.com/synthesizer-design-tool/audio-library-examples-on-trellis and https://github.com/adafruit/Audio
  36. Terrific! Couple of thoughts/questions: -...

    Terrific! Couple of thoughts/questions:

    - Have you thought about mixing this with Adafruit_GFX hierarchy to provide compatibility with that API? Not sure where the actual primitives would come...
  37. Replies
    20
    Views
    1,867

    Neat! Will you be trying to merge this upstream?

    Neat! Will you be trying to merge this upstream?
  38. No problem! For just a USB keyboard, the...

    No problem!

    For just a USB keyboard, the Teensy LC should be plenty fast and has enough pins for your application.

    If you need other features like a more memory or pins, an SD card slot,...
  39. Totally doable. For the buttons, the most...

    Totally doable. For the buttons, the most straightforward approach is to do a 8x9 matrix, that'll give you 72 positions. You could use one of the two leftover positions for the push button on the...
  40. Replies
    4
    Views
    535

    Can you elaborate on how you are trying to snap...

    Can you elaborate on how you are trying to snap to grid? What does the Grid: popup menu under the icons along the top of the window say?


    Yeah, that's definitely frustrating. I've taken to...
  41. Replies
    28
    Views
    1,946

    Check out https://platformio.org for command-line...

    Check out https://platformio.org for command-line builds. You can specify gcc options in the platformio.ini file for a given project.
  42. Replies
    2
    Views
    377

    Try Open() instead of open() :)

    Try
    Open() instead of
    open()

    :)
  43. Very clever. Well done!

    Very clever. Well done!
  44. Replies
    66
    Views
    5,498

    Well done, sir! This is great.

    Well done, sir! This is great.
  45. Take a look at the Teensy 4.1 schematic here:...

    Take a look at the Teensy 4.1 schematic here: https://www.pjrc.com/teensy/schematic.html for a reference.

    It may be easier for you to replace the Teensy 4.0 in your system with a Teensy 4.1, which...
  46. Replies
    35
    Views
    4,511

    There are two relevant pins in the MicroMod...

    There are two relevant pins in the MicroMod specification:

    RESET - Input to processor. Open drain with pullup on processor board. Pulling low resets processor.

    and

    BOOT - Input to...
  47. Replies
    35
    Views
    4,511

    Sorry, can you point me to the SFE docs? I'm not...

    Sorry, can you point me to the SFE docs? I'm not seeing them...
  48. Replies
    35
    Views
    4,511

    If they did then it probably wouldn't be MicroMod...

    If they did then it probably wouldn't be MicroMod compatible. The MicroMod pinout here https://www.sparkfun.com/micromod#tech-specs doesn't have any provision for ethernet pins.
  49. Replies
    35
    Views
    4,511

    I sincerely hope that the MicroMod pin labelled...

    I sincerely hope that the MicroMod pin labelled RESET# is a real old-fashioned cpu reset pin as described in the MicroMod pin description. :)
  50. Thread: Support

    by blackketter
    Replies
    5
    Views
    764

    This forum is a good place to get help. Try...

    This forum is a good place to get help. Try posting your issue here with as many details as you can...
Results 1 to 50 of 343
Page 1 of 7 1 2 3 4