GitHub - MCUdude/MightyCore: Arduino hardware package for ATmega1284, ATmega644, ATmega324, ATmega324PB, ATmega164, ATmega32, ATmega16 and ATmega8535
GitHub - MCUdude/MightyCore: Arduino hardware package for ATmega1284, ATmega644, ATmega324, ATmega324PB, ATmega164, ATmega32, ATmega16 and ATmega8535
![Increasing Digital I/O Pins of Arduino uno Using 8255 Peripheral Programmable Interface with Arduino Increasing Digital I/O Pins of Arduino uno Using 8255 Peripheral Programmable Interface with Arduino](https://www.engineersgarage.com/wp-content/uploads/2/2/1/5/22159166/6692125_orig.jpg)