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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: 88,683
    kd5rxt-mark
    01-08-2021, 01:57 PM Go to last post

  1. Teensy 4.1 will not start/boot without USB

    Started by Pontus, Today 02:17 PM
    • Replies: 1
    • Views: 3
    KurtE
    Today, 03:22 PM Go to last post

  2. Troubleshot on custom board

    Started by Goderfer, 09-24-2023 10:11 PM
    • Replies: 3
    • Views: 136
    PaulStoffregen
    Today, 08:33 AM Go to last post

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

    Started by wonderingwho, Yesterday 03:15 AM
    1 Attachment(s)
    • Replies: 5
    • Views: 100
    wonderingwho
    Today, 03:21 AM Go to last post

  4. TEENSY40_LOCK vs TEENSY40

    Started by romalo, Yesterday 01:39 AM
    1 Attachment(s)
    • Replies: 2
    • Views: 73
    romalo
    Today, 01:41 AM Go to last post

  5. Fuse part number

    Started by hmaarrfk, 09-25-2023 03:59 PM
    • Replies: 1
    • Views: 98
    PaulStoffregen
    Yesterday, 05:08 PM Go to last post

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

    Started by MichaelB, Yesterday 10:37 AM
    • Replies: 1
    • Views: 79
    joepasquariello
    Yesterday, 03:41 PM Go to last post

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

    Started by Dave1976, Yesterday 08:20 AM
    • Replies: 0
    • Views: 60
    Dave1976
    Yesterday, 08:20 AM Go to last post

  8. 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: 120
    jmarsh
    Yesterday, 06:00 AM Go to last post

  9. Need help saving serial data to SD card

    Started by Ash, 08-29-2023 12:38 AM
    6 Attachment(s)
    • Replies: 21
    • Views: 697
    joepasquariello
    Yesterday, 03:33 AM Go to last post

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

    Started by akiharmonikas@yahoo.com, 09-25-2023 05:28 AM
    • Replies: 2
    • Views: 77
    akiharmonikas@yahoo.com
    09-25-2023, 05:42 PM Go to last post

  11. Modbus RTU

    Started by o5i, 09-13-2016 11:15 AM
    2 Pages •
    1 2
    10 Attachment(s)
    • Replies: 49
    • Views: 40,629
    pd0lew
    09-25-2023, 05:42 PM Go to last post

  12. 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: 94
    waterlubber
    09-25-2023, 02:07 PM Go to last post

  13. I2C and AD7991 and Teensy4

    Started by pd0lew, 08-25-2019 03:52 PM
    • Replies: 6
    • Views: 2,083
    starfire151
    09-24-2023, 05:27 PM Go to last post

  14. 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

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

    Started by koochak, 09-23-2023 09:22 AM
    • Replies: 2
    • Views: 115
    PaulStoffregen
    09-23-2023, 10:11 AM Go to last post

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

    Started by sebar, 09-22-2023 01:13 PM
    • Replies: 2
    • Views: 136
    sebar
    09-22-2023, 04:33 PM Go to last post

  17. 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

  18. Max PSRAM and FLASH size for teensy 4.1

    Started by ThatQuietSoundGuy, 05-11-2022 11:24 PM
    • Replies: 14
    • Views: 1,289
    PaulStoffregen
    09-22-2023, 05:05 AM Go to last post

  19. 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

  20. 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

  21. 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: 168
    MarkT
    09-21-2023, 08:46 PM Go to last post

  22. MM Teensy & SPI

    Started by mcb, 09-15-2023 07:11 PM
    3 Attachment(s)
    • Replies: 6
    • Views: 257
    PaulS
    09-21-2023, 07:05 PM Go to last post

  23. 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: 211
    KurtE
    09-21-2023, 01:03 PM Go to last post

  24. Locked Teensy "bricks"

    Started by Dogbone06, 09-20-2023 08:42 AM
    1 Attachment(s)
    • Replies: 17
    • Views: 223
    defragster
    09-20-2023, 06:34 PM Go to last post

  25. Teensy 4.1 USB Host Joystick

    Started by Witlock123, 09-19-2023 08:28 PM
    • Replies: 3
    • Views: 143
    KurtE
    09-20-2023, 05:47 PM Go to last post

  26. Teensy Power and Startup Questions

    Started by tbennett, 09-19-2023 09:27 PM
    • Replies: 2
    • Views: 137
    tbennett
    09-20-2023, 03:55 PM Go to last post

  27. Teensy 4.1 USB issue

    Started by davidk, 09-20-2023 07:20 AM
    • Replies: 0
    • Views: 83
    davidk
    09-20-2023, 07:20 AM Go to last post

  28. VS Code/Platform IO and Lockable Teensy 4.1

    Started by milesg, 09-23-2022 08:02 PM
    • Replies: 9
    • Views: 1,257
    quiver
    09-19-2023, 01:21 PM Go to last post

  29. 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: 276
    QuantX
    09-19-2023, 09:41 AM Go to last post

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

    Started by tompilot, 02-03-2022 10:31 PM
    • Replies: 5
    • Views: 1,202
    WMXZ
    09-19-2023, 08:37 AM Go to last post

  31. 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: 565
    milesg
    09-19-2023, 06:47 AM Go to last post

  32. Teensy Port issue

    Started by leeroy, 09-18-2023 08:47 PM
    arduino ports, ports, teensy
    • Replies: 4
    • Views: 173
    leeroy
    09-19-2023, 01:53 AM Go to last post

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

    Started by Paul96, 09-18-2023 02:47 AM
    • Replies: 5
    • Views: 189
    thebigg
    09-19-2023, 01:18 AM Go to last post

  34. Grounding Issue (Electronic Panel)

    Started by Paul96, 09-18-2023 02:56 AM
    • Replies: 1
    • Views: 106
    MarkT
    09-18-2023, 11:33 PM Go to last post

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

    Started by HermesTheNurse, 09-13-2023 07:44 AM
    6 Attachment(s)
    • Replies: 4
    • Views: 258
    HermesTheNurse
    09-18-2023, 11:12 PM Go to last post

  36. teensy 4.1 voltage and current limiters heating up

    Started by Lalita, 06-30-2023 11:35 AM
    5 Attachment(s)
    • Replies: 21
    • Views: 611
    jmarsh
    09-18-2023, 03:53 PM Go to last post

  37. avrdude: ser_open(): can't open device "/sys/devices/.../1-6.3": Is a directory

    Started by lukexyz, 03-31-2021 03:43 AM
    • Replies: 3
    • Views: 686
    gwideman
    09-18-2023, 07:46 AM Go to last post

  38. HardwareSerial: Send a specific “break” or “end of frame”

    Started by cdalio, 09-17-2023 05:59 PM
    hardwareserial, stop bit
    • Replies: 6
    • Views: 146
    cdalio
    09-17-2023, 09:46 PM Go to last post

  39. Custom Teensy DCDC_PSWITCH 2.3 Volts

    Started by murdog, 09-17-2023 03:59 AM
    1 Attachment(s)
    • Replies: 6
    • Views: 185
    PaulS
    09-17-2023, 05:31 PM Go to last post

  40. How to handle divide by zero on a T3.6?

    Started by Narrowboater, 09-16-2023 12:44 PM
    • Replies: 5
    • Views: 208
    joepasquariello
    09-16-2023, 06:50 PM Go to last post

  41. Teensy 4.1 Error opening serial port, usb:1100000 (port not found)

    Started by nicksalloum, 09-16-2023 04:55 PM
    3 Attachment(s)
    • Replies: 3
    • Views: 121
    defragster
    09-16-2023, 06:50 PM Go to last post

  42. Delaying a message sent using DMA

    Started by ajc225, 09-16-2023 08:13 AM
    dma 1 Attachment(s)
    • Replies: 0
    • Views: 89
    ajc225
    09-16-2023, 08:13 AM Go to last post

  43. RAM2 Arrays Cache Flushing and 32 byte Alignment

    Started by Neal, 09-16-2023 02:13 AM
    • Replies: 2
    • Views: 123
    defragster
    09-16-2023, 02:53 AM Go to last post

  44. Problem when uploading program to T4.1 in IDE 2.0.2

    Started by W5ZZO, 11-19-2022 03:08 PM
    2 Pages •
    1 2
    7 Attachment(s)
    • Replies: 28
    • Views: 2,521
    CraigF
    09-15-2023, 11:11 PM Go to last post

  45. REST server for 4.1

    Started by santi, 09-15-2023 09:15 PM
    • Replies: 0
    • Views: 84
    santi
    09-15-2023, 09:15 PM Go to last post

  46. ADC speed for oscilloscope

    Started by Worev, 09-15-2023 09:49 AM
    adc
    • Replies: 12
    • Views: 316
    MarkT
    09-15-2023, 06:44 PM Go to last post

  47. Teensy 4.1 RXTX errors

    Started by dorin, 09-14-2023 07:05 PM
    2 Attachment(s)
    • Replies: 6
    • Views: 233
    joepasquariello
    09-15-2023, 05:55 PM Go to last post

  48. How to use teensy 4.1 and interface with a 5v synth?

    Started by NeoBender, 09-04-2023 02:25 AM
    2 Attachment(s)
    • Replies: 5
    • Views: 265
    PaulStoffregen
    09-15-2023, 01:24 PM Go to last post

  49. Teensy not detected by mac

    Started by abel, 09-15-2023 09:50 AM
    2 Attachment(s)
    • Replies: 1
    • Views: 114
    Mcu32
    09-15-2023, 09:52 AM Go to last post

  50. Reading Quad Timer Seems Slow

    Started by lerman, 09-13-2023 10:19 PM
    • Replies: 11
    • Views: 311
    Mcu32
    09-15-2023, 07:15 AM Go to last post
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