ATtiny85
avr - How to use ATTiny PB5 RESET pin as GPIO - Electrical Engineering Stack Exchange
ATtiny85 GPIO input tutorial - Gadgetronicx
12 ATtiny85 Microcontroller ideas microcontrollers, arduino, arduino projects
ATtiny85
Digispark ATtiny85 Pinout and Configuration - CyberBlogSpot
ATtiny85 timer switch tutorial: Generating Time Delay using Interrupts
ATtiny85 GPIO input tutorial - Gadgetronicx
How To Program ATtiny13/ATtiny13a using Arduino IDE - Electronics-Lab