Infrared remote library for ESP8266: send and receive infrared signals with multiple protocols. Based on:
C++ Python Makefile Other
Clone or download
crankyoldgit Update LG (28-bit) HDR mark and space timings. (#492)
- Based on data collected in #472 and #488 it appears LG A/C (28bit)
  messages have a header that's closer to 8500+ for the mark and 4250 for
  the space. This puts the new values about midway between the range
  of values seen so hopefully will be compatible with old and new LG devices
Latest commit 25b1a29 Jul 17, 2018

IRremote ESP8266 Library

Build Status Average time to resolve an issue Percentage of issues still open GitLicense

This library enables you to send and receive infra-red signals on an ESP8266 using the Arduino framework using common 940nm IR LEDs and common IR receiver modules. e.g. TSOP{17,22,24,36,38,44,48}* etc.

v2.4.2 Now Available

Version 2.4.2 of the library is now available. You can view the Release Notes for all the significant changes.

Upgrading from pre-v2.0

Usage of the library slight changed at v2.0. You will need to change your usage to work with v2.0 and beyond. You can read more about the changes required on our Upgrade to v2.0 page.


Before reporting an issue or asking for help, please try to follow our Troubleshooting Guide first.

Frequently Asked Questions

Some common answers to common questions and problems are on our F.A.Q. wiki page.


Official releases via the Arduino IDE v1.8+ (Windows & Linux)
  1. Click the "Sketch" -> "Include Library" -> "Manage Libraries..." Menu items.
  2. Enter IRremoteESP8266 into the "Filter your search..." top right search box.
  3. Click on the IRremoteESP8266 result of the search.
  4. Select the version you wish to install and click "Install".
Manual Installation for Windows
  1. Click on "Clone or Download" button, then "Download ZIP" on the page.
  2. Extract the contents of the downloaded zip file.
  3. Rename the extracted folder to "IRremoteESP8266".
  4. Move this folder to your libraries directory. (under windows: C:\Users\YOURNAME\Documents\Arduino\libraries\)
  5. Restart your Arduino IDE.
  6. Check out the examples.
Using Git to install library ( Linux )
cd ~/Arduino/libraries
git clone
To Update to the latest version of the library
cd ~/Arduino/libraries/IRremoteESP8266 && git pull


If you want to contribute to this project, consider:


Available here

Library History

This library was originally based on Ken Shirriff's work (

Mark Szabo has updated the IRsend class to work on ESP8266 and Sebastien Warin the receiving & decoding part (IRrecv class).

As of v2.0, the library was almost entirely re-written with the ESP8266's resources in mind.