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  1. brendanmatkin

    Oh! - Science World Building Lights Controller

    Wow thanks Kris! I need to get back to it I guess - I have been snoozing on making stuff lately.
  2. brendanmatkin

    Oh! - Science World Building Lights Controller

    Brave or stupid! We must've done something because somehow it kept working haha. Funny I went to the trouble of spooling up multiple iterations of the sensor PCB but never even made a protoboard version for the controller.. Thanks very much!
  3. brendanmatkin

    Oh! - Science World Building Lights Controller

    OH! is a sculpture/controller for the lights on the geodesic dome at the Telus World of Science in Vancouver, Canada. It was built by me and several others at Tangible Interaction in Vancouver. I did the firmware, sensors/EDA, wiring, PureData (for external generated music), and local LED...
  4. brendanmatkin

    Serial Monitor missing data on some Macintosh computers

    Sorry about the delay - I've been on vacation. I will try later today!
  5. brendanmatkin

    Serial Monitor missing data on some Macintosh computers

    p.s. FYI just did another test with Teensy to verify that it fails after Adafruit succeeds and it behaves just like before (i.e. it still drops data and hangs the serial monitor) NOTE: I can stop the monitor from hanging on Teensy if I add a delay(1) to the end of your benchmark program (see...
  6. brendanmatkin

    Serial Monitor missing data on some Macintosh computers

    Just tested with a Feather M0 Bluefruit, and a Trinket M0. Both work as expected - not hanging and not dropping data - settling around 5500 lines/sec. Tried multiple uploads and power cycles on each just to be sure.
  7. brendanmatkin

    Serial Monitor missing data on some Macintosh computers

    Paul, let me know if you'd like me to test anything else. The only hint I've got to think about is something to do with serial modems in the OS - sometimes in the network preferences teensy will keep creating new modem devices (USB Serial, USB Serial 1, USB Serial 2...). BUT this is also not...
  8. brendanmatkin

    Serial Monitor missing data on some Macintosh computers

    Now using a Teensy LC (left the 3.6 at home, sorry for the change but the behaviour is the same). First upload. Actually worked fine but Arduino Serial Monitor hung after a second or so. SIDENOTE: Just as a reminder, once in a while it works fine. AND that uploaded sketch continues to work...
  9. brendanmatkin

    Serial Monitor missing data on some Macintosh computers

    It has existed since at least Sierra. High Sierra did some fixes to serial in the OS that we hoped would fix the problem but didn't seem to.
  10. brendanmatkin

    Serial Monitor missing data on some Macintosh computers

    Just as a reminder - the missed data and hanging only happens when USB Type is set to something including Serial. If it's set to Raw HID then the serial printout works perfectly (but only in Arduino Serial Monitor, of course. No other serial terminal sees it).
  11. brendanmatkin

    Serial Monitor missing data on some Macintosh computers

    Forget what I said on twitter, I found a 3.6! Ok this first test is Arduino 1.8.8, macOS 10.13.6, Teensduino 1.45. I'll update to latest and try again in a bit. Old usb_serial.c (included with package): New usb_serial.c (provided my Paul): Both just stop printing at the point where it...
  12. brendanmatkin

    Teensyduino 1.43 Beta #3

    Can confirm that the mac slow gui issue seems to be fixed with original Arduino 1.8.6 and Teensyduino 1.42-beta3 (menu loading was slow right before installing teensyduino and fast after)! macOS 10.13.6
  13. brendanmatkin

    Teensyduino 1.42 Beta #4

    MacOS 10.13.3, Arduino 1.8.5, Teensy 3.6, USB Type: Serial, Teensyduino 1.42-beta4 Serial Monitor no longer skips prints but it stops responding after an apparently random number of loops (or time?). After anywhere from 30 to around 2000 loops it stops. The teensy is not crashing - but serial...
  14. brendanmatkin

    Ehternet Wiz820IO Using 8 Sockets

    Awesome! Thanks for testing! I thought it would be much more complex but I think I was going on old info. I will do some further tests in the next week or so and confirm that it works for me too.
  15. brendanmatkin

    Octows2811 with matrix panel

    Start off on this page for the Octows2811. Make sure to scroll down (there is a white space gap)! Instead of several rows of strips, just consider the matrix to be a single strip of 256 (8x32). You might also look at this Adafruit library ( and this guide ).
  16. brendanmatkin

    Ehternet Wiz820IO Using 8 Sockets

    Hey, I submitted an issue on github for this but probably should have just posted here... I'd just like to bump this and see if there is time to take another pass at it? If there is and you need some help/testing/sample code, please let me know! It is a very high priority for me so I can...
  17. brendanmatkin

    Pin 17 and DMA on Teensy LC

    This is old but if anyone comes across it looking for an answer: https://github.com/PaulStoffregen/WS2812Serial (scroll to the bottom) tldr; you are correct. Physically connect whichever pin you want to use to 17 on the side, then connect the 5v 17 on the end to your LEDs. Just don't do...
  18. brendanmatkin

    Serial Issue with Teensy

    Arduino 1.8.5, macOS 10.13.3, teensy loader 1.42-beta3, teensy 3.1 Still not working. Teensy Loader verbose log attached. One instance of teensy_ports in activity monitor even after multiple uploads. I get "An error occurred while uploading the sketch" in IDE every time, but sketch still...
  19. brendanmatkin

    Serial Issue with Teensy

    Ok thanks! Must some deeper-seated problem with my computer. Weird that it only happens with Teensy though. I've also attached a sanity check screenshot on my end. (I get that "error occurred while uploading the sketch" whenever it's not showing serial data properly - this is a new behaviour...
  20. brendanmatkin

    Serial Issue with Teensy

    Thanks for checking! Same results if you re-upload a few times?
  21. brendanmatkin

    Serial Issue with Teensy

    Had this problem for a long time but just used rawHID plus Arduino Serial monitor for debugging. I've finally updated to Sierra (10.12.6) and was excited that this would be gone but the problem is the same. Deleted arduino and teensyduino and preferences.txt (was causing problems after the...
  22. brendanmatkin

    Teensy 3.1 Reset

    Pull the pin low to reset. ...I have no source, just tried it and that's what works.
  23. brendanmatkin

    Serialmonitor / TeensyMoitor not working as expected

    p.s. I'm also getting a "Teensy Loader is unable to read your compiled sketch (r) This error should never happen." on the first upload after I switch USB Type. I think every time. If I just hit upload again it works until I change USB Type again. Not sure if this is related.
  24. brendanmatkin

    Serialmonitor / TeensyMoitor not working as expected

    I have had this problem for a long time now too. Currently on Arduino 1.8.0, Teensyduino 1.34, OS X 10.11.6. Edit: Changing to Raw HID also removes for me, but then I have to use Arduino Serial Monitor. Not the end of the world, but not a proper fix haha. Some testing (as USB Serial): I...
  25. brendanmatkin

    Serial monitor problems arduino 1.6.13/ teenly lc

    Does it only do this when you try to monitor in RealTerm (which I assume you are doing from the last post), or also when you try to use the Arduino Serial Monitor? I would suggest to try closing all applications, opening JUST arduino/teensy loader and trying to connect with the Arduino Serial...
  26. brendanmatkin

    serial monitor woes

    Yeah or just swap the file entirely. Anyway, might be a slightly different problem. FYI for anyone who might be still be having problems with this: mine seems to be a complete crap shoot; once in a while the serial monitor (or any other serial application) works fine, but most of the drop it...
  27. brendanmatkin

    serial monitor woes

    DANGIT nevermind. The problem is so intermittent that it appeared to be working for a while but actually isn't. Even after increasing: if (tx_full_count >= 15) { Anyway it still might work for you harrih.
  28. brendanmatkin

    serial monitor woes

    El Capitan USB Serial workaround updated for 1.34 Paul + harrih The workaround in usb_serial.c that I found in the 1.26 beta 1 release thread worked for me. I'm currently using arduino 1.8.0, teensy 1.34, OS X 10.11.6. I guess the fix was never fully implemented and I could find a workaround...
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