PaulStoffregen/cores

Teensy Core Libraries for Arduino

578

1,775 commits

updated Jun 27, 2026

See the code

README

Teensy 2.0, LC, 3.x, 4.x core libraries for Arduino.

The latest stable version of Teensy's core library is always available in the Teensyduino installer, at this page:

http://www.pjrc.com/teensy/td_download.html

Project health

Overall

1.3/10

Maintained

0/10

Code review

0/10

OpenSSF Scorecard

Significant stargazers

Chris Lilley

689 followers · starred Jul 2014

Carson McDonald

343 followers · starred Oct 2016

Joey Gouly

54 followers · starred Dec 2014

Michael Neumann

78 followers · starred Apr 2020

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PaulStoffregen/cores

Teensy Core Libraries for Arduino

578

1,775 commits

updated Jun 27, 2026

See the code

README

Teensy 2.0, LC, 3.x, 4.x core libraries for Arduino.

The latest stable version of Teensy's core library is always available in the Teensyduino installer, at this page:

http://www.pjrc.com/teensy/td_download.html

Project health

Overall

1.3/10

Maintained

0/10

Code review

0/10

OpenSSF Scorecard

Significant stargazers

Chris Lilley

689 followers · starred Jul 2014

Carson McDonald

343 followers · starred Oct 2016

Joey Gouly

54 followers · starred Dec 2014

Michael Neumann

78 followers · starred Apr 2020

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STM32 core support for Arduino

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mciantyre/teensy4-rs

Rust support for the Teensy 4

374

InovelliUSA/Firmware

A centralized location for Inovelli device firmware files.

LonelyWolf/stm32

STM32 stuff

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Arduino IDE 1.x

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