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Forum: Technical Support & Questions

Technical support for hardware and software and questions for projects you are working on

  1. Sticky Thread Sticky: Please Post Code & Details In Your Question!

    Started by Paul, 01-07-2013 08:07 PM
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 34
    • Views: 88,686
    kd5rxt-mark
    01-08-2021, 01:57 PM Go to last post

  1. [Teensy 4.1] Technical questions relative to GPIO registers and how to use them.

    Started by hlide, Today 02:44 PM
    3 Attachment(s)
    • Replies: 1
    • Views: 24
    hlide
    Today, 02:46 PM Go to last post

  2. Fuse part number

    Started by hmaarrfk, 09-25-2023 03:59 PM
    • Replies: 2
    • Views: 121
    hmaarrfk
    Today, 02:13 PM Go to last post

  3. Teensy 4.1 powered from 3.3V pin not initializing USB communication

    Started by nathanielbelles, Today 01:08 AM
    • Replies: 2
    • Views: 77
    PaulStoffregen
    Today, 05:02 AM Go to last post

  4. Unintentional HIGH when uploading code to the Teensy 4.1

    Started by mwolters, 01-31-2022 07:13 AM
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 28
    • Views: 1,840
    VictorFS
    Yesterday, 08:24 PM Go to last post

  5. T4 CrashReport Debugging on a Mac

    Started by TeensyDigital, 07-12-2022 08:39 PM
    • Replies: 23
    • Views: 1,406
    VictorFS
    Yesterday, 06:16 PM Go to last post

  6. Teensy 4 Arduino 2.0.3 addr2line tutorial

    Started by carlsuttle, 01-05-2023 05:37 PM
    1 Attachment(s)
    • Replies: 1
    • Views: 483
    VictorFS
    Yesterday, 06:10 PM Go to last post

  7. Multiple issues using TeensyThreads on T3.5. Dynamic heap allocation problems.

    Started by VictorFS, 08-05-2022 06:50 PM
    4 Pages •
    1 2 3 ... 4
    • Replies: 83
    • Views: 2,868
    VictorFS
    Yesterday, 12:29 PM Go to last post

  8. MIDI and sys ex reception

    Started by damo1976, Yesterday 08:32 AM
    • Replies: 0
    • Views: 66
    damo1976
    Yesterday, 08:32 AM Go to last post

  9. IC-Socket for the Teeny 4.0

    Started by Stephen_Ge, 09-28-2023 07:24 AM
    4 Attachment(s)
    • Replies: 14
    • Views: 186
    Stephen_Ge
    Yesterday, 07:38 AM Go to last post

  10. Help with XTSD0xG Memory ICs

    Started by TomV, 09-28-2023 06:50 PM
    • Replies: 0
    • Views: 51
    TomV
    09-28-2023, 06:50 PM Go to last post

  11. What happens if i plug more than 5V unto the VIN pin of teensy 4.0 and 4.1?

    Started by Luca, 08-28-2023 12:25 PM
    • Replies: 7
    • Views: 301
    MarkT
    09-28-2023, 06:14 PM Go to last post

  12. Teensy 4.1 cannot connect to Putty/Teraterm

    Started by danieltsz, 09-28-2023 02:59 PM
    2 Attachment(s)
    • Replies: 5
    • Views: 106
    danieltsz
    09-28-2023, 05:18 PM Go to last post

  13. Custom MIDI controller with 18 Illuminated Pushbuttons - LED feedback question

    Started by akiharmonikas@yahoo.com, 09-25-2023 05:28 AM
    • Replies: 5
    • Views: 132
    TomChiron
    09-28-2023, 10:23 AM Go to last post

  14. Legacy project help: I need GCC toolchain for Teensy 3.2, but can't find it!

    Started by kc5tja, 09-28-2023 02:09 AM
    • Replies: 1
    • Views: 72
    PaulStoffregen
    09-28-2023, 05:09 AM Go to last post

  15. Teensy 4.1 Built-in RTC problem

    Started by danieltsz, 09-28-2023 01:57 AM
    1 Attachment(s)
    • Replies: 2
    • Views: 87
    danieltsz
    09-28-2023, 04:58 AM Go to last post

  16. MIDI Library, Teensy 4.1 & Dodgy Old Synth! (DX7)

    Started by wonderingwho, 09-26-2023 03:15 AM
    1 Attachment(s)
    • Replies: 7
    • Views: 168
    wonderingwho
    09-27-2023, 11:05 PM Go to last post

  17. Is the Teensy 4.1 with Audio-Shield the right Component for my Project?

    Started by Dave1976, 09-26-2023 08:20 AM
    • Replies: 1
    • Views: 87
    TomChiron
    09-27-2023, 09:17 PM Go to last post

  18. Flashing 4.1 code on a board with a 4.0 bootloader chip

    Started by Henrik, 12-17-2021 09:39 AM
    • Replies: 15
    • Views: 1,892
    Rezo
    09-27-2023, 04:52 PM Go to last post

  19. Teensy 4.1 will not start/boot without USB

    Started by Pontus, 09-27-2023 02:17 PM
    • Replies: 1
    • Views: 70
    KurtE
    09-27-2023, 03:22 PM Go to last post

  20. Troubleshot on custom board

    Started by Goderfer, 09-24-2023 10:11 PM
    • Replies: 3
    • Views: 155
    PaulStoffregen
    09-27-2023, 08:33 AM Go to last post

  21. TEENSY40_LOCK vs TEENSY40

    Started by romalo, 09-26-2023 01:39 AM
    1 Attachment(s)
    • Replies: 2
    • Views: 80
    romalo
    09-27-2023, 01:41 AM Go to last post

  22. FreqMeasureMulti Library on T4.1 or Micromod - which pins for 8 independent signals?

    Started by MichaelB, 09-26-2023 10:37 AM
    • Replies: 1
    • Views: 90
    joepasquariello
    09-26-2023, 03:41 PM Go to last post

  23. USB Host (teensy 4.1) possible to configure to not skip empty poll events?

    Started by cirthix, 09-25-2023 05:02 PM
    • Replies: 2
    • Views: 123
    jmarsh
    09-26-2023, 06:00 AM Go to last post

  24. Need help saving serial data to SD card

    Started by Ash, 08-29-2023 12:38 AM
    6 Attachment(s)
    • Replies: 21
    • Views: 708
    joepasquariello
    09-26-2023, 03:33 AM Go to last post

  25. Modbus RTU

    Started by o5i, 09-13-2016 11:15 AM
    2 Pages •
    1 2
    10 Attachment(s)
    • Replies: 49
    • Views: 40,645
    pd0lew
    09-25-2023, 05:42 PM Go to last post

  26. Teensy 4.1 Not Resuming from ON_OFF_SW suspend.

    Started by waterlubber, 09-24-2023 09:16 PM
    1 Attachment(s)
    • Replies: 2
    • Views: 97
    waterlubber
    09-25-2023, 02:07 PM Go to last post

  27. I2C and AD7991 and Teensy4

    Started by pd0lew, 08-25-2019 03:52 PM
    • Replies: 6
    • Views: 2,084
    starfire151
    09-24-2023, 05:27 PM Go to last post

  28. ADC tests for TCD1304DG

    Started by Oleum, 09-07-2023 06:43 PM
    5 Attachment(s)
    • Replies: 17
    • Views: 470
    joepasquariello
    09-23-2023, 07:47 PM Go to last post

  29. Teensy 4.0/4.1 to ESP32 via Rx & Tx HARDWARE question

    Started by koochak, 09-23-2023 09:22 AM
    • Replies: 2
    • Views: 117
    PaulStoffregen
    09-23-2023, 10:11 AM Go to last post

  30. Teensy: Maximum number of buttons for USB Controller?

    Started by sebar, 09-22-2023 01:13 PM
    • Replies: 2
    • Views: 138
    sebar
    09-22-2023, 04:33 PM Go to last post

  31. PEM Key location in Ubuntu Linux

    Started by EmbeddedGuru, 09-22-2023 09:59 AM
    • Replies: 2
    • Views: 93
    KurtE
    09-22-2023, 01:29 PM Go to last post

  32. Max PSRAM and FLASH size for teensy 4.1

    Started by ThatQuietSoundGuy, 05-11-2022 11:24 PM
    • Replies: 14
    • Views: 1,297
    PaulStoffregen
    09-22-2023, 05:05 AM Go to last post

  33. Library function to extract unique ID from PSRAM chips

    Started by strud, 09-21-2023 10:37 PM
    • Replies: 2
    • Views: 94
    strud
    09-22-2023, 12:25 AM Go to last post

  34. Teensy 4.0 Serial/ RF interference

    Started by rimbu, 09-20-2023 05:55 PM
    • Replies: 7
    • Views: 171
    MatrixRat
    09-21-2023, 10:35 PM Go to last post

  35. Teensy 4.1 and ATWINC1500 (can't connect to module)

    Started by JurMa1, 09-20-2023 09:57 AM
    1 Attachment(s)
    • Replies: 5
    • Views: 169
    MarkT
    09-21-2023, 08:46 PM Go to last post

  36. MM Teensy & SPI

    Started by mcb, 09-15-2023 07:11 PM
    3 Attachment(s)
    • Replies: 6
    • Views: 261
    PaulS
    09-21-2023, 07:05 PM Go to last post

  37. MTP_Teensy example "mtp-logger.ino" compile error, on T4.1.

    Started by Sandro, 09-20-2023 07:23 PM
    1 Attachment(s)
    • Replies: 7
    • Views: 215
    KurtE
    09-21-2023, 01:03 PM Go to last post

  38. Locked Teensy "bricks"

    Started by Dogbone06, 09-20-2023 08:42 AM
    1 Attachment(s)
    • Replies: 17
    • Views: 225
    defragster
    09-20-2023, 06:34 PM Go to last post

  39. Teensy 4.1 USB Host Joystick

    Started by Witlock123, 09-19-2023 08:28 PM
    • Replies: 3
    • Views: 144
    KurtE
    09-20-2023, 05:47 PM Go to last post

  40. Teensy Power and Startup Questions

    Started by tbennett, 09-19-2023 09:27 PM
    • Replies: 2
    • Views: 139
    tbennett
    09-20-2023, 03:55 PM Go to last post

  41. Teensy 4.1 USB issue

    Started by davidk, 09-20-2023 07:20 AM
    • Replies: 0
    • Views: 86
    davidk
    09-20-2023, 07:20 AM Go to last post

  42. VS Code/Platform IO and Lockable Teensy 4.1

    Started by milesg, 09-23-2022 08:02 PM
    • Replies: 9
    • Views: 1,266
    quiver
    09-19-2023, 01:21 PM Go to last post

  43. Teensy 4.1 no longer being recognized as a USB device

    Started by QuantX, 09-18-2023 03:33 AM
    1 Attachment(s)
    • Replies: 10
    • Views: 281
    QuantX
    09-19-2023, 09:41 AM Go to last post

  44. Builtin Sd-Card Teensy 4.1 - SD.begin() errors

    Started by tompilot, 02-03-2022 10:31 PM
    • Replies: 5
    • Views: 1,210
    WMXZ
    09-19-2023, 08:37 AM Go to last post

  45. RS-485 Serial/Modbus gurus requested for Teensy4.1 running Paul's ModbusRTU library.

    Started by milesg, 08-09-2022 10:34 PM
    2 Attachment(s)
    • Replies: 8
    • Views: 574
    milesg
    09-19-2023, 06:47 AM Go to last post

  46. Teensy Port issue

    Started by leeroy, 09-18-2023 08:47 PM
    arduino ports, ports, teensy
    • Replies: 4
    • Views: 174
    leeroy
    09-19-2023, 01:53 AM Go to last post

  47. RA8876 10.1 Inch Eastrising Display and Teensy 4.1 (SPI Issues)

    Started by Paul96, 09-18-2023 02:47 AM
    • Replies: 5
    • Views: 191
    thebigg
    09-19-2023, 01:18 AM Go to last post

  48. Grounding Issue (Electronic Panel)

    Started by Paul96, 09-18-2023 02:56 AM
    • Replies: 1
    • Views: 109
    MarkT
    09-18-2023, 11:33 PM Go to last post

  49. MIDI Library Question: <MIDI.h> versus <usbmidi.h>

    Started by HermesTheNurse, 09-13-2023 07:44 AM
    6 Attachment(s)
    • Replies: 4
    • Views: 262
    HermesTheNurse
    09-18-2023, 11:12 PM Go to last post

  50. teensy 4.1 voltage and current limiters heating up

    Started by Lalita, 06-30-2023 11:35 AM
    5 Attachment(s)
    • Replies: 21
    • Views: 619
    jmarsh
    09-18-2023, 03:53 PM Go to last post
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