ATtiny85 microcontroller tutorials, Part 4: LED chaser using ATtiny85
A simple and inexpensive way to program new AVR ATtiny214, ATtiny414, ATtiny814 and Atmega microcontrollers using by the UPDI interface - ООО "НПК "Спецтехнаука"
Start with IAR Embedded Workbench for Atmel AVR: Attiny13 LED blink with timer interrupt | electronicsblog.net
Week 9 : Embedded Programming
Only one LED is blinking ATTINY45 - Project Guidance - Arduino Forum
Programming Hex-code on an Attiny85 with the Arduino – Arduino, ESP8266, ESP32 & Raspberry Pi stuff
Programming ATtiny85 IC directly through USB without Arduino using Digispark Bootloader
Attiny85 USB Development Board LED Blinking With Arduino IDE : 7 Steps - Instructables
Technoblogy - Driving Four RGB LEDs from an ATtiny85