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README.md

IRremote Arduino Library

Build Status

Join the chat at https://gitter.im/z3t0/Arduino-IRremote

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

Tutorials and more information will be made available on the official homepage.

Version - 2.2.3

Installation

  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.

FAQ

  • IR does not work right when I use Neopixels (aka WS2811/WS2812/WS2812B)
    Whether you use the Adafruit Neopixel lib, or FastLED, interrupts get disabled on many lower end CPUs like the basic arduinos. In turn, this stops the IR interrupt handler from running when it needs to. There are some solutions to this on some processors, see this page from Marc MERLIN

Supported Boards

  • Arduino Uno / Mega / Leonardo / Duemilanove / Diecimila / LilyPad / Mini / Fio / Nano etc.
  • Teensy 1.0 / 1.0++ / 2.0 / 2++ / 3.0 / 3.1 / Teensy-LC; Credits: @PaulStoffregen (Teensy Team)
  • Sanguino
  • ATmega8, 48, 88, 168, 328
  • ATmega8535, 16, 32, 164, 324, 644, 1284,
  • ATmega64, 128
  • ATtiny 84 / 85
  • ESP32 (receive only)
  • ESP8266 is supported in a fork based on an old codebase that isn't as recent, but it works reasonably well given that perfectly timed sub millisecond interrupts are different on that chip. See https://github.com/markszabo/IRremoteESP8266

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
ATmega48, ATmega88, 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
ESP32 N/A (not supported) 1
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

Experimental patches

The following are strictly community supported patches that have yet to make it into mainstream. If you have issues feel free to ask here. If it works well then let us know!

Arduino 101

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.

Usage

  • TODO (Check examples for now)

Contributing

If you want to contribute to this project:

  • Report bugs and errors
  • Ask for enhancements
  • Create issues and pull requests
  • Tell other people about this library
  • Contribute new protocols

Check here for some guidelines.

Contact

Email: zetoslab@gmail.com Please only email me if it is more appropriate than creating an Issue / PR. I will not respond to requests for adding support for particular boards, unless of course you are the creator of the board and would like to cooperate on the project. I will also ignore any emails asking me to tell you how to implement your ideas. However, if you have a private inquiry that you would only apply to you and you would prefer it to be via email, by all means.

Contributors

Check here

Copyright

Copyright 2009-2012 Ken Shirriff

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