PROGRAMMING ATTINY85 AND I2C COMMUNICATION USING ATTINY85, by Pinwheel Robotics

Programming ATtiny85 and ATtiny45 with Arduino IDE

Programming The ATtiny85 - DIYODE Magazine

Using an I2C LCD on Attiny85 - Instructables

Programming an ATtiny85/45 with an Arduino UNO (Getting started

ATtiny85 I2C protocol tutorial - Gadgetronicx

Pinwheel Robotics – Medium

ATtiny Adventure -- I2C on ATtiny 84/85 –

Burning & Programming the ATTiny 44 84 45 85 8 bit MCU

6 digital I/O, 3 support PWM and 4 support analog inputs.

ATtiny85 Module with Micro USB

Programming The ATtiny85 - DIYODE Magazine

ATtiny i2c Slave – The Wandering Engineer

ATtiny85 I2C protocol tutorial - Gadgetronicx