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Teensyduino 1.33 Beta #2 Available
Here is a second beta test for Teensyduino 1.33.
This version attempts to fix a serious bug in version 1.32 which prevents uploading sketches.
Linux 32 bit:
http://www.pjrc.com/teensy/td_133-be...nstall.linux32
Linux 64 bit:
http://www.pjrc.com/teensy/td_133-be...nstall.linux64
Linux ARM:
http://www.pjrc.com/teensy/td_133-be...stall.linuxarm
Mac OS-X:
http://www.pjrc.com/teensy/td_133-be...inoInstall.dmg
Windows:
http://www.pjrc.com/teensy/td_133-be...inoInstall.exe
Changes since Teensyduino 1.33-beta1:
- Fix first-use communication error between Arduino & Teensy Loader
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I can confirm that the problem from 1.33-beta1 (error on first-use) is fixed in my setup.
Thanks for the quick fix!
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Confirmed here as well (same setup as kophi though, on mac, T3.2, A1.6.13). Thanks for working on this!
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Thank you Paul, this solved the compiler error problems (MacBook Pro macOS 10.11.6).
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Paul, I can confirm 1.33-Beta2 works with Teensy 3.2 under Windows 10 - Arduino1.6.13 and vMicro/VS.
Thank you so much - Glenn
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Senior Member
Looks like this fixed the trouble.
I'm going to do another round of testing here tomorrow, and then release this as 1.33... unless I discover any problems, or anyone reports any more issues.
If anyone sees anything wrong, please please please speak up ASAP.
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This worked for me as well. For completeness the log is attached.
teensy_reboot_log.txt
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Senior Member
I've released Teensyduino 1.33. There were no substantial changes after 1.33-beta2.
http://www.pjrc.com/teensy/td_download.html
This 1.33 release is mainly to fix the bug with first-time upload errors from Arduino.
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Senior Member+
I ran into an issue installing Teensyduino on my Windows 10 64 bit Arduino 1.6.13... I get error messages like:

I tried with the current one 1.33 as well as the current one here and get this error.
I tried rebooting, I deleted the old Arduino and unzipped a new 1.6.13 to c:\ tried running as Admin... Will try to download fresh copies again...
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I had that error while installing 1.13b2 but I had forgotten to kill a T3.6 project that I had open in the IDE. Killed it, started again, all OK.
Pete
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Senior Member+
This time I tried it again, with a freshly downloaded Arduino IDE, I just rebooted, then unzipped the Arduino IDE to c:\ and then tried running the Teensyduino, same error...
Maybe should try on another machine... Will try later, now getting ready for company...
Edit: I also tried installing Arduino in my Documents folder and rerun the Teensyduino... Failed there too.
At times like this I wonder if 1.6.13 now is the same 1.6.13 when it was released
Last edited by KurtE; 12-14-2016 at 04:47 PM.
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Senior Member+
I ran the TD_1.33b2 install over my prior 1.6.13 install with no problems with TD install
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BTW. I install Arduino/Teensyduino on a SSD. I start by unzipping the Arduino stuff and that goes really fast. Up until recently, the Teensyduino install was really slow. But 1.33 installs MUCH faster than previous versions.
Excellent 
Pete
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Senior Member+

Originally Posted by
KurtE
This time I tried it again, with a freshly downloaded Arduino IDE, I just rebooted, then unzipped the Arduino IDE to c:\ and then tried running the Teensyduino, same error...
Maybe should try on another machine... Will try later, now getting ready for company...
Edit: I also tried installing Arduino in my Documents folder and rerun the Teensyduino... Failed there too.
At times like this I wonder if 1.6.13 now is the same 1.6.13 when it was released
Update: I think it is the Virus detector
must have changed. I turned McAfee real time scanning off for 15 minutes and was able to update the two directories that failed earlier
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Senior Member

Originally Posted by
el_supremo
But 1.33 installs MUCH faster than previous versions.
Oh, yeah... I made a couple little improvements to the installer. Should speed things up on Mac and Windows. Linux was already very fast.
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Originally Posted by
PaulStoffregen
Oh, yeah... I made a couple little improvements to the installer.
Woah really fast, damn.
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