Pinned

1. MightyCore Public

   Arduino hardware package for ATmega1284, ATmega644, ATmega324, ATmega324PB, ATmega164, ATmega32, ATmega16 and ATmega8535

   C++ 450 146

2. MegaCore Public

   Arduino hardware package for ATmega64, ATmega128, ATmega640, ATmega1280, ATmega1281, ATmega2560, ATmega2561, AT90CAN32, AT90CAN64 and AT90CAN128

   C++ 235 89

3. MiniCore Public

   Arduino hardware package for ATmega8, ATmega48, ATmega88, ATmega168, ATmega328 and ATmega328PB

   C++ 626 152

4. MicroCore Public

   A light-weight Arduino hardware package for ATtiny13

   C++ 383 66

5. SigmaDSP Public

   A versatile Arduino library for interfacing with the ADAU1701 audio DSP

   C++ 49 21

6. MegaCoreX Public

   An Arduino hardware package for ATmega4809, ATmega4808, ATmega3209, ATmega3208, ATmega1609, ATmega1608, ATmega809 and ATmega808

   C++ 131 24