*[ArduinoCore-mbed](https://github.com/arduino/ArduinoCore-mbed#clone-the-repository-in-sketchbookhardwarearduino-git)

*[ArduinoCore-samd](https://github.com/arduino/ArduinoCore-samd/#developing)

This open source code is maintained by Arduino with the help of the community. We invest a considerable amount of time in testing code, optimizing it and introducing new features. Please consider[donating](https://www.arduino.cc/en/donate/) or[sponsoring](https://github.com/sponsors/arduino) to support our work, as well as[buying original Arduino boards](https://store.arduino.cc)which is the best waytomake sureoureffort can continue inthelong term.

This open source code is maintained by Arduino with the help of the community. We invest a considerable amount of time in testing code, optimizing it and introducing new features. Please consider[buying original Arduino boards](https://store.arduino.cc) tosupportourwork ontheproject.