Programming a Teensy 1.0 in 2026

[Vam]

Hi, I have an old OG Teensy that I would like to use in a current project.

Teensyduino doesn't support it, and a cursory search about the AT90USB162 was not fruitful...

Is it still possible to program these nowadays ?

My main machine is an Apple Silicon Mac. I have an old Win XP netbook that could be used if I can put my hands on legacy software...

 

[joepasquariello]

There's a thread from 2017 that might help...

https://forum.pjrc.com/index.php?threads/is-the-teensy-1-0-still-supported.43571/post-141331

 

[Vam]

Thanks, my netbook is warming up !

Edit, since there is obviously no modern solution, I had a dig at the wayback machine, which has arduino and teensyduino v0018 (Which must be the version available around the time I bought that board).

https://web.archive.org/web/20100329092555/http://www.pjrc.com/teensy/td_download.html

https://web.archive.org/web/20100330101600/http://www.arduino.cc/en/Main/Software

 

[PaulStoffregen]

Teensyduino 1.18 was the last version with support for Teensy 1.0. Good news is the files are still on the PJRC server. Here's a link you can use to download them.

Arduino IDE was at version 1.0.5 back then. I found those files and put them into that directory on the server so you can get everything needed with 1 easy download.

I'd be amazed if this stuff could run on modern MacOS, even using Rosetta2. Linux version is also unlikely on modern Linux. I believe back then the IDE didn't ship with a Java JRE on Linux. Windows truly is the king of backwards compatibility. Just by guessing, I'd give it a 50-50 chance on Windows 10 or 11.