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Arduino IRremote

Infrared remote library for Arduino: send and receive infrared signals with multiple protocols

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IRremote Arduino Library

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This library enables you to send and receive using infra-red signals on an Arduino.

Check here for tutorials and more information.

Version - 2.2.0


  1. Navigate to the Releases page.
  2. Download the latest release.
  3. Extract the zip file
  4. Move the "IRremote" folder that has been extracted to your libraries directory.
  5. Make sure to delete Arduino_Root/libraries/RobotIRremote. Where Arduino_Root refers to the install directory of Arduino. The library RobotIRremote has similar definitions to IRremote and causes errors.

Supported Boards

We are open to suggestions for adding support to new boards, however we highly recommend you contact your supplier first and ask them to provide support from their side.

Hardware specifications

Board/CPU Send Pin Timers
ATtiny84 6 1
ATtiny85 1 TINY0
ATmega8 9 1
Atmega32u4 5, 9, 13 1, 3, 4
ATmega168, ATmega328 3, 9 1, 2
ATmega1284 13, 14, 6 1, 2, 3
ATmega164, ATmega324, ATmega644 13, 14 1, 2
ATmega8535 ATmega16, ATmega32 13 1
ATmega64, ATmega128 13 1
ATmega1280, ATmega2560 5, 6, 9, 11, 46 1, 2, 3, 4, 5
Teensy 1.0 17 1
Teensy 2.0 9, 10, 14 1, 3, 4_HS
Teensy++ 1.0 / 2.0 1, 16, 25 1, 2, 3
Teensy 3.0 / 3.1 5 CMT
Teensy-LC 16 TPM1

The table above lists the currently supported timers and corresponding send pins, many of these can have additional pins opened up and we are open to requests if a need arises for other pins.



If you want to contribute to this project:

Check here for some guidelines.


The only way to contact me at the moment is by email: I am not currently monitoring any PRs or Issues due to other issues but will respond to all emails. If anyone wants contributor access, feel free to email me. Or if you find any Issues/PRs to be of importance that my attention is needed please email me.


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Copyright 2009-2012 Ken Shirriff