ATTiny85 I2C LCD

After hours of Googling, I found a blog post by Dimitris Platis where he describes using an ATTiny85 with I2C LCD. I emailed the guy and he replied with a link to his LCD I2C ATTiny library on GitHub. Using this library with the TinyWireM and the right core, it instantly worked.

My final setup is with a 4.7K resistor on SDA and SCL, I will add the final sketch in the original post under [EDIT]. This adventure took me two weeks so I hope it helps someone else some day.

LCD library used: https://github.com/platisd/ATtiny85-LCD-library
TinyWireM used: https://github.com/adafruit/TinyWireM
Core used: https://github.com/vprimachenko/ArduinoTiny