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Type: Posts; User: radias

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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...
  3. 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...
  4. @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...
  7. (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...
  8. 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)...
  9. 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.
  13. 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...
  14. 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...
  17. 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...
  18. 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...
  19. @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...
  21. 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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