A look at the Digispark ATtiny85 board – Get micros
ATtiny85 I2C protocol tutorial - Gadgetronicx
OLED (I2C) with ATtiny85 - Hello World Program
Micro USB Interface ATTINY85 Module Programmer Development Board I/O Pins for Arduino I2C USB ATTINY85 20PU PCB board|Instrument Parts & Accessories| - AliExpress
ATtiny85 Microcontroller Interfaced with I2C OLED - YouTube
PROGRAMMING ATTINY85 AND I2C COMMUNICATION USING ATTINY85 | by Pinwheel Robotics | Medium
ATtiny85】TinyWireMライブラリでのI2C開発のススメ | くろべこblog
ATtiny i2c Slave – The Wandering Engineer
Introduction to ATtiny85 - The Engineering Projects