A simple and inexpensive way to program new AVR ATtiny214, ATtiny414, ATtiny814 and Atmega microcontrollers using by the UPDI interface - ООО "НПК "Спецтехнаука"
Technoblogy - Driving Four RGB LEDs from an ATtiny85
Getting Started With the ATtiny85: The Little Microcontroller That Could – Embedded Thoughts
Only one LED is blinking ATTINY45 - Project Guidance - Arduino Forum
Ultra Low Power Led Flasher (with ATtiny) | Electronics & Arduino
ATtiny #3: Blinking an LED with 4 bytes of code? - YouTube
How to Create a Blinking LED project using Atmega16 microcontroller in Proteus - Step by Step with Pictures | mcuhq