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  1. Paul

    Teensyduino 1.60 Released

    Teensyduino 1.60 has been released https://www.pjrc.com/teensy/td_download.html Support for Arduino IDE 2.0.4 and later is available by adding this package index URL in File > Preferences. https://www.pjrc.com/teensy/package_teensy_index.json Article with summary of new features and changes...
  2. Paul

    Run-time non-volatile read and write to flash or SD card

    Do not create duplicate threads. Closing this one. Everyone can reply on the other: https://forum.pjrc.com/index.php?threads/run-time-non-volatile-read-and-write-to-flash-or-sd-card.77617/
  3. Paul

    Here is a sixth beta test for Teensyduino 1.60

    Here is a sixth beta test for Teensyduino 1.60. This is meant to be a release candidate. My hope is to release 1.60 with the many small fixes that accumulated since 1.59 before starting major new development. Arduino 2.3.x, all systems...
  4. Paul

    Teensyduino 1.60 Beta #5

    Here is a fifth beta test for Teensyduino 1.60. Arduino 2.3.x, all systems: https://www.pjrc.com/teensy/td_160-beta5/package_teensy_0.60.5_index.json 1: Quit Teensy Loader, if running 2: Use Boards Manager to uninstall Teensy, if previously installed 3: Use File > Preferences (Arduino IDE >...
  5. Paul

    Recent "An error occurred while the page was being generated" issue

    I've disabled a couple of the large netblock filters. Hopefully this helps? We're still receiving a huge amount of botnet traffic, but at least it's within the server's capability to keep up. I'm sad to say, if it becomes worse again like we saw 2 weeks ago, effectively taking the forum down...
  6. Paul

    Recent "An error occurred while the page was being generated" issue

    Starting yesterday (May 27, 2025) the forum began having problems, showing "An error occurred while the page was being generated". After some investigation, the problem turned out to be a "xf_session_activity" table grew too large. Apparently it's a common problem on some other Xenforo-based...
  7. Paul

    Forum Server Maintenance Downtime on May 21, 2025

    This forum is expected to be offline next Wednesday (May 21). Our web hosting provider will be physically moving the server to a nearby location. Outage is expected to begin around 7 AM, US East Coast time and may last a good portion of the day, possibly up to 12 hours. The main PJRC website...
  8. Paul

    Teensyduino 1.60 Beta #4

    Here is a fourth beta test for Teensyduino 1.60. Arduino 2.3.x, all systems: https://www.pjrc.com/teensy/td_160-beta4/package_teensy_0.60.4_index.json 1: Quit Teensy Loader, if running 2: Use Boards Manager to uninstall Teensy, if previously installed 3: Use File > Preferences (Arduino IDE >...
  9. Paul

    2 mono mics into the audio board?

    Continued on other thread. Closing this one. https://forum.pjrc.com/index.php?threads/2-mono-mics-repost-from-project-guidance-forum.76818/
  10. Paul

    SparkFun To Manufacture Teensy

    We are excited to announce the expansion of our partnership with SparkFun Electronics to include the manufacturing of all Teensy products. Teensy 4.0, Teensy 4.1 and related accessories will now be manufactured by SparkFun in Colorado, USA. SparkFun will also fulfill direct sales and also sell...
  11. Paul

    LPSPI in Teensy 4.0/4.1, maximum clock frequency

    NXP, obviously, though inconsisteny like "F(op)" versus "F(SCK)" kinda makes it look like copypasta. An NXP employee or contractor risks a reprimand or poor performance review, if there's even the slightest implication they advised you to do so! Seriously, do you really imagine anyone at NXP...
  12. Paul

    Upload problem.

    Problems can also happen entirely on your PC. Usually you would see an error message. The most common problem is some other program (not the Arduino IDE) tries to access Teensy. Especially with Windows, when another program has opened access to Teensy, access from Arduino IDE gets blocked...
  13. Paul

    Upload problem.

    The most common problem is disabling interrupts for too long, either by intentionally using noInterrupts() or cli() or similar, or by your own interrupt function which takes too long and thereby blocks other interrupts until it completes. When software on your PC tries to ask Teensy to go into...
  14. Paul

    Black Friday Sale 2024

    PJRC will have a Black Friday sale this year. Sweet discount on Teensy 4.0 and Audio Shield. Prices to be announced when the sale starts. Sale will run Nov 25 to Dec 2, or until inventory allocated to the sale runs out. Will limit to 50 per person.
  15. Paul

    Teensyduino 1.60 Beta #3

    Here is a third beta test for Teensyduino 1.60. Arduino 2.3.x, all systems: https://www.pjrc.com/teensy/td_160-beta3/package_teensy_0.60.3_index.json 1: Quit Teensy Loader, if running 2: Use Boards Manager to uninstall Teensy, if previously installed 3: Use File > Preferences (Arduino IDE...
  16. Paul

    Teensyduino 1.60 Beta #2

    Here is a second beta test for Teensyduino 1.60. Arduino 2.3.x, all systems: https://www.pjrc.com/teensy/td_160-beta2/package_teensy_0.60.2_index.json Quit Teensy Loader, if running Use Boards Manager to uninstall Teensy, if previously installed Use File > Preferences (Arduino IDE > Settings...
  17. Paul

    Spare Teensy LC's

    Leftover Teensy LC quest continues here: https://forum.pjrc.com/index.php?threads/anyone-have-some-teensy-lc%E2%80%99s.75834/
  18. Paul

    Teensyduino 1.60 Beta #1

    Teensyduino 1.60 Beta #1 Here is a first beta test for Teensyduino 1.60. Arduino 2.3.x, all systems platforms: Use Boards Manager to install Teensy version 0.60.1 (to refresh versions, Shift-Ctrl-P and click "Arduino: Update Package Index") Arduino 1.8.x, Linux 32 bit...
  19. Paul

    Pls help rocketry

    Do not create duplicate questions. It does not help you get more answers. Duplicates only annoy people who would help. Original thread: https://forum.pjrc.com/index.php?threads/pls-help-my-rocketry.75487/
  20. Paul

    [waiting for update] Teensy Opening/Closing Valve Over WiFi Using Just 1 Pin

    Ah, ok, that makes sense. Will wait for updates.
  21. Paul

    [posted] AMC8-HUI-Midi-Faders-Automation-Control

    This excellent project was featured on the website in this article: https://www.pjrc.com/amc8-automated-midi-controller/
  22. Paul

    [posted] Enhancement of Convolution SDT: the T41-EP SDT

    Also mentioned here: https://forum.pjrc.com/index.php?threads/duplicate-software-defined-transceiver.72629/
  23. Paul

    [duplicate] Software Defined Transceiver

    Looks like this was mentioned in more detail on another thread. Closing this older thread. https://forum.pjrc.com/index.php?threads/queued-enhancement-of-convolution-sdt-the-t41-ep-sdt.73552/
  24. Paul

    [queued] MiniTouch 2nd edition, T4.0 compact synth

    Can you give me a quick rundown on what's changed since the previous version covered in an article on January 10, 2024? Hardware looks to be quite well updated, Teensy 4.0 rather than Teensy 3.2 and more pots... but a quick explanation of the practical benefit the better hardware brings for...
  25. Paul

    [waiting for update] Teensy Opening/Closing Valve Over WiFi Using Just 1 Pin

    This one is now in the queue for a blog article. Quick question though, is the Teensy's main purpose just to keep the ESP in a low power mode when not needed? I guess I'm just struggling to understand the project as a whole. Any extra explanation could really help so we get the article...
  26. Paul

    Adapting IBM/Lexmark M4 keyboard (from IBM L40 SX) to USB?

    quick followup to ask if you got this project going?
  27. Paul

    [queued] tape music invention VC REV-VAR LOOP

    Any chance for a picture of the electronics?
  28. Paul

    [queued] DIY Hardware Data Vault With Teensy 4.1 (Midbar (Teensy 4.1) V3.0)

    prior threads: https://forum.pjrc.com/index.php?threads/midbar-teensy-4-1-version-advanced-teensy-4-1-based-open-source-data-vault.73103/ https://forum.pjrc.com/index.php?threads/midbar-teensy-4-1-version-v2-0.73231/
  29. Paul

    [duplicate] Midbar (Teensy 4.1 Version): Advanced, Teensy 4.1 - based, open-source data vault.

    Continues on this thread: https://forum.pjrc.com/index.php?threads/diy-hardware-data-vault-with-teensy-4-1-midbar-teensy-4-1-v3-0.74204/
  30. Paul

    [duplicate] Midbar (Teensy 4.1 Version) V2.0

    Continues on this thread: https://forum.pjrc.com/index.php?threads/diy-hardware-data-vault-with-teensy-4-1-midbar-teensy-4-1-v3-0.74204/
  31. Paul

    [queued] TEAMS-, ZOOM-Headset by upcicling an old Phone

    This is in the queue to get a blog article (likely within the next few months). I hope you'll consider putting the source on a site like Github. This is a fun project I'm sure some other people would love to build, if the source and needed info is published.
  32. Paul

    [posted] Teensy-RV-Leveling-Helper

    Any chance you could share a photo of the system in use on a RV? Maybe also a photo of the hardware with Teensy? These display pictures are awesome, but we could write a much better article with at least 1 photo showing how it's actually used.
  33. Paul

    [no Teensy?] +/-5V power from USB

    Is this used with Teensy? Perfectly fine to discuss power supplies... but this was posted in the Blog Project Submission section. To show a project on the website blog, it needs to somehow use Teensy.
  34. Paul

    iSCSI target

    Any chance you could explain a bit more about this project? A bit more background about what iSCSI is and why people might want to use it could really help when the blog article is written. Is the PC accessing Teensy via USB or Ethernet or some other way? This graph is good, but usually we...
  35. Paul

    [posted] OctoWS2811 Power Injection Board

    Article posted on the website: https://www.pjrc.com/octows2811-power-injection-board/
  36. Paul

    [posted] Log 60 Hz AC Powerline Frequency

    Article posted on the website: https://www.pjrc.com/ac-powerline-frequency-monitor/
  37. Paul

    [posted] LED matrix control with Teensy 4.0

    Article posted on the website: https://www.pjrc.com/scrolling-led-sign/
  38. Paul

    [posted] Teensy 3.6 based 8086 PC emulator with CGA graphics, PS2 keyboard

    Article posted on the website: https://www.pjrc.com/8086-pc-emulator-with-cga-graphics/
  39. Paul

    Teensy / Launchpad sequencer (update)

    Article posted on the website: https://www.pjrc.com/beatmaster2k-sequencer-using-novation-launchpad/
  40. Paul

    Teensy powered railgun?

    Article posted on the website: https://www.pjrc.com/magnetic-railgun-paper-airplane-launcher/
  41. Paul

    Teensy 3.5 powered turbine FADEC for land speed record attempt

    Article posted on the website: https://www.pjrc.com/fadec-turbine-controller/
  42. Paul

    New Teensy 4.1 DIY Synthesizer

    Article posted on the website: https://www.pjrc.com/jeannie-diy-synthesizer/
  43. Paul

    A Compressed Video Player for Teensy 4.1 Boards using JPEGDEC

    Article posted on the website: https://www.pjrc.com/mjpegtft_t4/
  44. Paul

    [posted] Netflix "Maniac" GRTA Mainframe

    Article posted on the website: https://www.pjrc.com/netflix-maniac-grta-mainframe/
  45. Paul

    [posted] Quantum Jungle: My new installation with 12000 LEDs+touch+Teensy 4.1+eth

    Article posted on the website: https://www.pjrc.com/quantum-jungle/
  46. Paul

    Teensy spiral music visualization

    Article posted on the website: https://www.pjrc.com/spiral-music-visualization/
  47. Paul

    [posted] modular datalogger system

    Article posted on the website: https://www.pjrc.com/modular-datalogger-system/
  48. Paul

    Monitoring voice while recording it

    Article posted on the website: https://www.pjrc.com/voice-recording-phone/
  49. Paul

    [posted] AMC8 - Automated midi controller (Hui Protocol)

    Article posted on the website: https://www.pjrc.com/amc8-automated-midi-controller/
  50. Paul

    [posted] MAME (Multiple Arcade Machine Emulator) ported to Teensy4.0

    Article posted on the website: https://www.pjrc.com/mame-arcade-machine-emulator/
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