ATtiny85 IR Library, you can send the IR Signal with the Physical pin 3 - aka 4 - .
This library is a mix of library and code from those components:
I recommend you to use the ATTinyCore for driver the ATtiny85: https://goo.gl/hin2re
NEC:
Sony:
SAMSUNG:
sendRC5/6:
sendRaw
Donwload the ZIP, extract it and copy the "tiny_IRremote" folder in to "Arduino/libraries" .
[ ] SAMSUNG Receive ( copy to the main library )
[ ] ATtiny84 ?