#Atmega #arduino #adventcalendar #FOSS #linux Welcome to my AVR advent calendar. Here you can learn in 24 days how to program AVR 8-bit microcontrollers and use the most important interfaces of them. Today I will show you how to use digital input pins. We will control some LEDs over a button. You can find the source code here: https://github.com/johannes4Linux/avr_advent_calendar You want to support my work? You can buy me a coffee here: https://www.buymeacoffee.com/johannes4linux If you want to contact me, you can find my E-Mail on www.gnu-linux.rocks You want to learn more? Check out my playlist: https://www.youtube.com/watch?v=IYdzRYCzDX0