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    What you use for tempo is called the MIDI Beat...

    What you use for tempo is called the MIDI Beat Clock and most DAWs will support this since it’s needed to sync external MIDI sequencers together. This is supported in Teensyduino already and there...
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    I added a function to turn on promiscuous mode so...

    I added a function to turn on promiscuous mode so all ethernet messages come through instead of just the matching MAC address or broadcast messages. This does come at the cost of increased USB...
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    Interesting, I wonder what changes are being made...

    Interesting, I wonder what changes are being made with debug that stops it from working.
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    Yeah it was pushed to GitHub a while ago, I don't...

    Yeah it was pushed to GitHub a while ago, I don't remember which version had the issue but I know there have been several more commits since that issue was fixed.
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    Also yes there was an issue a while ago where the...

    Also yes there was an issue a while ago where the small delay that was added from printing debug information allowed it to work, but that was fixed. I’ve done my fair share of testing with it on and...
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    The vendor id you have is correct, it is...

    The vendor id you have is correct, it is programmed for 0x0B95 however it may be a different chipset, from my understanding most usb to Ethernet adapters share a common driver after they are...
  7. If you choose to build stuff with common buses...

    If you choose to build stuff with common buses it’s really easy to get a large I/O amount with a relatively small number of pins needed. Even though common buses have died off in favor of serial it’s...
  8. That doesn’t have an output latch like he would...

    That doesn’t have an output latch like he would need, it’s only an address latch.
  9. The second USB port has to be used to connect...

    The second USB port has to be used to connect other devices, the first can only be connected to a computer or power. You would connect a powered USB hub to the second USB port then connect your four...
  10. Most people wouldn’t recommend a multiplexer for...

    Most people wouldn’t recommend a multiplexer for controlling LEDs, while it is possible and I’ve done it, it’s not the best device to do it. That being said, while the 4051 is not latchable if you...
  11. Theoretically UART MIDI can run at any baud rate...

    Theoretically UART MIDI can run at any baud rate as long as both devices support it, I happen to own a device that had selectable speeds from the early 90’s. However since you are using the Teensy...
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    Have a look at: https://ctrlr.org/ It has the...

    Have a look at: https://ctrlr.org/
    It has the ability to do what you want if you can program it right, the basic objects won’t be able to do it without some programming though. It allows you to...
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    AREF is hardwired to 3.3v on the Teensy 4.0 and...

    AREF is hardwired to 3.3v on the Teensy 4.0 and the pin is not accessible so there is no way to change it like you can with some of the other models.
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    Yes, that looks correct.

    Yes, that looks correct.
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    To avoid some confusion both Teensy 4.0 and 3.6...

    To avoid some confusion both Teensy 4.0 and 3.6 have two USB ports, one is configured for USB host and the other is configured for USB device modes respectively. The onboard micro USB is the device...
  16. Keep in mind I have no experience with using...

    Keep in mind I have no experience with using OctoWS2811, but from my understanding the sync signal is not used by the library at all and is only broken out for use in the users code which can be seen...
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    There is technically software support for it,...

    There is technically software support for it, although most libraries tend to be hard coded to use SPI port 0, so you would have to edit the library so it uses a different SPI port. I’ve done this...
  18. Isolated ground is fine, that’s the purpose of...

    Isolated ground is fine, that’s the purpose of these types of chips, being that it’s electrically isolated nothing on the other side of this chip can affect the Teensy. The only issue I can tell so...
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    Teensy 4.0 uses the same library as Teensy 3.6,...

    Teensy 4.0 uses the same library as Teensy 3.6, any project that works with that will work for the T4.0, it is installed as part of Teensyduino and is called USBHost_t36. Github page is here:...
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    Straight out of the box it would not be able to...

    Straight out of the box it would not be able to do this, you would have code it to be able to emulate what’s on the second USB port and forward all the information to the first USB port, this would...
  21. I know nothing about it either, but you don’t...

    I know nothing about it either, but you don’t truthfully need it to communicate between the two, you would just have to write your own serial commands that can tell your software on the esp what to...
  22. Looks like you actually have to flash the esp...

    Looks like you actually have to flash the esp with the AT firmware, it doesn’t just work without it, here’s an instructable: https://www.instructables.com/id/ESP-12F-Flashing-AT-Firmware/
  23. For one Tx should go to Rx and vise versa, never...

    For one Tx should go to Rx and vise versa, never Tx to Tx or Rx to Rx. You don’t need a voltage divider, both are 3.3v devices so that’s not needed, without knowing what sketch you’re running the...
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    I imagine this page may help:...

    I imagine this page may help: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka3750.html
    Seems to be just a matter of creating a pointer variable to that register.
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    Indeed changing the name is not enough, it’s when...

    Indeed changing the name is not enough, it’s when the serial number gets changed that the device is registered as new so the existing cache from the old number isn’t used. Changing the serial number...
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    For question 2 the easiest way I find to do this...

    For question 2 the easiest way I find to do this with my midi devices is by changing the serial number, this is really simple for midi, but I don’t remember if it works for all devices types or not....
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    Wireshark can capture usb packets as well, but...

    Wireshark can capture usb packets as well, but this seems unrelated to this forum.
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    Indeed 0 and 1 is used for SPI1, one is chip...

    Indeed 0 and 1 is used for SPI1, one is chip select, one is MISO1, I can’t remember which is which but that would be the issue.
  29. Looks good so far, looking forward to buying this...

    Looks good so far, looking forward to buying this and getting native Ethernet working, I think it makes the most sense to bring out UART5 and the rest of a 16 bit port. I plan on doing some things...
  30. TouchRead counts on you yourself being grounded...

    TouchRead counts on you yourself being grounded to get stable readings, the more grounded you are the higher your touchRead value will be, at the same token the more grounded you are the slower...
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    Ok I spent a couple hours trying to figure out...

    Ok I spent a couple hours trying to figure out the multicast filter crc algorithm, I finally got it cracked down so it actually works now, I've been testing MDNS and it wasn't working correctly since...
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    Easiest way to do it without changing a bunch of...

    Easiest way to do it without changing a bunch of things is to edit usb_desc.h, but if you ever needed to change it again you would have to edit that again. A while ago for my personal use I added an...
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    I’m not sure if there would be any improvements...

    I’m not sure if there would be any improvements to speeds if multi threading was disabled in the FNET library, it didn’t seem to make a difference when I first activated it, but at the time I was...
  34. The pins I would like to see is definitely...

    The pins I would like to see is definitely Serial8, usb host port like a T3.6 offers, and I would love native Ethernet if it’s a possibility. To coincide with the native Ethernet I would like the...
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    Yes the adapter has auto crossover detection,...

    Yes the adapter has auto crossover detection, there is a parameter for a static IP address for the DHCP service as well as an autoip service which is the one that should be used for direct connection...
  36. Here is a link to the current library for this:...

    Here is a link to the current library for this: https://github.com/felis/UHS30
    Link to forum page: https://forum.pjrc.com/threads/28173-Teensy-3-x-NATIVE-USB-HOST-PREVIEW-AVAILABLE
    Of note, Teensy...
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    There is a function that adds the services to a...

    There is a function that adds the services to a polling list that gets called from the usbthread, all of that is handled by the init function for the service you are trying to add. The specific...
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    There is definitely a learning curve to FNET...

    There is definitely a learning curve to FNET being that there really isn’t any documentation available on how to do certain things like create your own sockets. The author of FNET just tells people...
  39. Adafruit has their own port of the Teensy Audio...

    Adafruit has their own port of the Teensy Audio Library for such purposes: https://learn.adafruit.com/synthesizer-design-tool/overview
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    There’s certainly some surfaces that can be...

    There’s certainly some surfaces that can be bought cheaper than you can build one, some of the more specialized ones like a Euphonix controller can be built for cheaper since they are so overpriced...
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    I definitely want to see how well the gigabit...

    I definitely want to see how well the gigabit Ethernet on the 1170 performs if we have access to it, I would like for it to be available directly onboard so I don’t lose I/O pins just to support...
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    The original library does have direct support,...

    The original library does have direct support, but that support would have to be rewritten to work with Teensyduino, but we don’t have to use the original libraries code to use the hardware. You can...
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    Looks like the register values are not reading...

    Looks like the register values are not reading back what it expects, the product ID is right but the revision and Manufacturer ID are not. Here is what the library expects the values to be:

    if...
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    Since you have a relay on hand already I say test...

    Since you have a relay on hand already I say test with that and see how it performs, it should perform well since itís a direct connection through a relay and not flowing through a transistor, it...
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    Exactly correct.

    Exactly correct.
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    There’s no way to specify the number of LEDs per...

    There’s no way to specify the number of LEDs per pin, but if you just start the object with the max LEDs that one pin has there’s nothing stopping you from using less LEDs on the other pins. You just...
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    Yes two of those should be fine, those are the...

    Yes two of those should be fine, those are the same model that are on the OctoWS2811 adapter so you can guarantee that they will work.
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    Also I believe T4.0 isn’t yet supported with the...

    Also I believe T4.0 isn’t yet supported with the OctoWS2811 library and as the name suggests it is only for 8 pins which are hard coded into the library, so you would either have to port the library...
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    Octo2811 has nothing to do with level shifting.

    Octo2811 has nothing to do with level shifting.
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    I’m not sure about dma support, but the FastLED...

    I’m not sure about dma support, but the FastLED library can use the T4.0’s 16 bit port for output: https://github.com/FastLED/FastLED/wiki/Parallel-Output
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