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Type: Posts; User: radias

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    Thank you so much! This feature exists since 2016...

    Thank you so much! This feature exists since 2016 and I was not aware of it. :o Should sometimes re-read the manual. Sorry to have caused confusion.
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    ok. Understand. So it may be better to prevent...

    ok. Understand. So it may be better to prevent teensyduino libraries from showing up in Library manager. Anyway, for existing things I use 1.8.10/1.5 the way it works and for new tings I use each a...
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    Restored a backup of everything. 1.8.10, 1.5 and...

    Restored a backup of everything. 1.8.10, 1.5 and everything works perfectly, like it did before.

    btw:
    I've tried 1.8.12 and 1.51-beta1 on an other clean formerly arduino-free PC. Same error....
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    A uninstall / delete "C:\Program Files...

    A uninstall / delete "C:\Program Files (x86)\Arduino" / reinstall solved that issue. But now it is a new feature: Teensyduino does no longer update libraries existing in the sketchbook. I just forgot...
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    Windows 10 pro x64 Arduino 1.8.12 Teensyduino...

    Windows 10 pro x64
    Arduino 1.8.12
    Teensyduino 1.51-beta1
    In the library manager I now get this error:
    "Comparison method violates its general contract!"
    This is something new here.
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    :D Good luck!

    :D Good luck!
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    It is very hard to see something in the crystal...

    It is very hard to see something in the crystal ball...
    What I understand from your description it says you are feeding 5V into the Teensy via the I/O lines. This will surely fry it.

    Anyway, the...
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    Yes, failure is unavoidable, you are absolutely...

    Yes, failure is unavoidable, you are absolutely right. But still every chance to reduce it shall be considered.
    The MAX story is something different. The race between american and european industry...
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    @chileflora "keep it simple" means adding...

    @chileflora
    "keep it simple" means adding complexity adds also chance of failure. The more complex a system is, the more likely it will fail.

    Why develop an expensive Space Pen that works in low...
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    What about insulation? Styrofoam or PU could...

    What about insulation? Styrofoam or PU could provide enough insulation to prevent the cold from reaching the electronics before the flight is over. With clever design, it could let heat out and keep...
  11. What I could imagine is that the Teensy is so...

    What I could imagine is that the Teensy is so fast, it recognizes crackle and bounce on the signal lines as separate switching events when the switch is pressed and so sends massive amounts of midi...
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    So which kind of "autopilots" are you playing...

    So which kind of "autopilots" are you playing with? And for what purpose? Legal?
    An anavionics engineer just knows the Teensy boards are not suitable because of several factors, beginning at the...
  13. They prevent current from leaking into USB host...

    They prevent current from leaking into USB host in case the Teensy is powered by external source on 3.3V rail or if power is applied to the second USB port, and the host on the first USB port lacks...
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    Anything where a tangible interface is useful. Or...

    Anything where a tangible interface is useful. Or where you want to know capacitive coupling properties of something in a matrix... whatever. This board is universal. Usually this touch controller is...
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    Muca Multitouch breakout

    Find of the week:
    http://muca.cc

    This thing is way too cool. Imagine the possibilities: The Teensy4 may be easily able to run Lanczos algorithm to detect complex touch motions, field scans and...
  16. A Teensy 3.5 would be exactly what you need to go...

    A Teensy 3.5 would be exactly what you need to go on without a custom PCB. It has 27 analog inputs, two of them on the two analog outputs, makes 25 analog inputs remaining. One for each pot or fader,...
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    Yes, if you just connect your own Teensy devices,...

    Yes, if you just connect your own Teensy devices, that is all very simple. But if you connect other devices, like you wanted to do (see quote), that could cause the mentioned problems, if the patch...
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    Absolutely. Then all the devices connected to...

    Absolutely.
    Then all the devices connected to the Teensy#4 definitely need to be configured so they do not retransmit. Some keyboards, for example, are configured by default to retransmit and a...
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    Yes, but then you have latency between them,...

    Yes, but then you have latency between them, because every Teensy receives am message, processes it and forwards it. The usual MIDI-problem.
    I thought you wanted to get rid of that by making a...
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    If you connect the Teensy like shown on your...

    If you connect the Teensy like shown on your sketch, you will need limiting resistors on the TX lines. The RX lines have an impedance high enough so the signal will get through.
    A solution to the...
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    MIDI does not provide bus arbitration. So how...

    MIDI does not provide bus arbitration.
    So how could you prevent two Teensy from transmitting on the bus the same time, destroying the signal? Limiting resistors would at least prevent the output...
  22. actually, even an input pin of a 5V circuit or...

    actually, even an input pin of a 5V circuit or controller can bleed enough voltage to fry a 3.3V output. So it is always good practice to either use overvoltage suppressors and in-line resistors or...
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    Catalina is so full of bugs, it should be...

    Catalina is so full of bugs, it should be disregarded until the issues are fixed by the costermongers.
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    Windows 10 Pro 1909 x64 build 18363.476 Trying...

    Windows 10 Pro 1909 x64 build 18363.476

    Trying to run example "Teensy USB_MIDI Buttons"

    CPU Speed: "600MHz" (default)
    Optimize: "Faster" (default)

    USB Type: "MIDI"
    Windows builtin MIDI...
  25. Oh, with pots it is even much easier. T3.5 has...

    Oh, with pots it is even much easier. T3.5 has enough analog inputs for 20 pots and enough digital inpus for the buttons. Just use Pots in the range of 10k to 47k to make reading the ADC faster and...
  26. @bryangold42 The teensy 3.5 has enough pins to...

    @bryangold42
    The teensy 3.5 has enough pins to add 20 rotary encoders, 12 buttons and many LEDs, if they are Neopixels or other "smart LEDs", all without any additional hardware. Plus, you will have...
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    I had a similar problem and found out that, with...

    I had a similar problem and found out that, with high impedance inputs, the 74HC4051 do not work well. This is related to the design of the chip, which leads to midrange errors, if the chip runs on...
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    USB MIDI, any date?

    Hi Paul.

    Is there any date when USB MIDI arrives for Teensy 4.0? Even a Beta would be better than how it is now.

    I am really stuck at a point in my project, where USB MIDI is needed.
    Up to...
  29. (I do not understand, why posts get sent...

    (I do not understand, why posts get sent unintentionally. So here is the next sentence as a new post.)

    Anyway, have you left the jumper on the underside of the LiPoly Backpack open? If you closed...
  30. So you've done everything right. The only real...

    So you've done everything right. The only real "problem" is the hard limit of 500mA (or be it a bit more, depending on th capabilities of the port). You could use some (absolutely out-of-specs)...
  31. How did you wire the charger to the Teensy? I...

    How did you wire the charger to the Teensy?

    I had similar Problems with ESP32 boards with built-in LiPo charger. The problem was, the ESP32 plus the charger drew so much current that the voltage...
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    btw: it would be super cool to have a USB type...

    btw: it would be super cool to have a USB type "network adapter" that could handle a local webserver... unfortunately I am not ale to code somethig like that.
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    Or add an ESP32 or ESP8266 to the project, that...

    Or add an ESP32 or ESP8266 to the project, that offers a webpage in WLAN or even on it's own AP to do all the config needed.
    Is a bit like shooting cannons at bugs, but we need to add a co-processor...
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    Have you seen https://processing.org/ ? This...

    Have you seen https://processing.org/ ?
    This allows to make Apps for Windows, Android and Pi in an arduinoesque way, that can communicate with MIDI, COM and other channels.
  35. A more Arduino-like optuion could be to use a...

    A more Arduino-like optuion could be to use a SN65HVD230 on each slave node and on the master.
    These could be connected as star or line topology. If you do not use CAN functionality, tie Rs to GND...
  36. Well, that would allow to just connect the UART...

    Well, that would allow to just connect the UART RX pins to one TX pin. This could be done with TX to 10 MAX3232 TX drivers (5 chips containing 2 TX drivers each) and each output connected to the 10...
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    If i recall what we've done on a 1MHz 6510 CPU,...

    If i recall what we've done on a 1MHz 6510 CPU, like synthetic h-blank video graphics while running a functional game or demo, with sound and animation and disk access, then i can just laugh at the...
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    Best would be to update the display only if there...

    Best would be to update the display only if there is free CPU time. Now it takes to look at the code to find out, where and when in the loop this could be.
    Think of the loop as a "frame". I've made...
  39. I've just tested this FeatherWing with T4. It...

    I've just tested this FeatherWing with T4.
    It runs the graphicstest at 166MHz SPI. If you remove all the delays (except the delay(200); to be put in the beginning of setup), it shows how fast it all...
  40. Oh, i've run into the same trap. That is because...

    Oh, i've run into the same trap. That is because a pre-beta system is marketed under a previously well reputated name.
    Unfortunately, it is not possible to program the T4 with the original IDE any...
  41. @MichaelMeissner Speed does not matter from the...

    @MichaelMeissner
    Speed does not matter from the FeatherWing's side of view. See the datasheet. 48 MHz should run quite well, if the wiring is properly built. Extra pullup resistors in addition to...
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    The only software solution would be to program...

    The only software solution would be to program your own loader using the on-chip encrytion and UID features.
    Or use really strong epoxy resin with an embedded vial of nasty acid, like in the old...
  43. The TFT FeatherWing contains it's own power-on...

    The TFT FeatherWing contains it's own power-on reset timer (APX803-SAG). This leads to a problem, if the TFT is initialized in Teensy before the reset sequence in the display is over.
    The solution...
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    Teensy 4 usbMIDI ? any plans ?

    hi.
    I've recently started a synth/controller project on my T4 and it really rocks.
    The only downside: No MIDI over USB
    By now I am using some COM-MIDI software on the PC, but that does not really...
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    FT6206 on Teensy 3.x with multitouch

    Hi :-)
    Since yesterday I'm a proud owner of a Teensy 3.6. and an Adafruit 2.8" Color TFT Capacitive Touchscreen. What I found out to make the FT6206 touchscreen controller work on any of the 4 I2C...
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