How to narrow down the list of protocols recognized by the library?

[vkvark]

Hi there.

In my project, I'm using only one IR protocol, so it makes sense to limit the range of protocols detected by the library when it's decoding the received signal. This would save both RAM and CPU time. How can I do that?

[crankyoldgit]

Your answer is here:

IRremoteESP8266/src/IRremoteESP8266.h

Lines 85 to 102 in d8aee22

	// Do we enable all the protocols by default (true), or disable them (false)?
	// This allows users of the library to disable or enable all protocols at
	// compile-time with `-D_IR_ENABLE_DEFAULT_=true` or
	// `-D_IR_ENABLE_DEFAULT_=false` compiler flags respectively.
	// Everything is included by default.
	// e.g. If you only want to enable use of he NEC protocol to save program space,
	// you would use something like:
	// `-D_IR_ENABLE_DEFAULT_=false -DDECODE_NEC=true -DSEND_NEC=true`
	//
	// or alter your 'platform.ini' file accordingly:
	// ```
	// build_flags = -D_IR_ENABLE_DEFAULT_=false
	// -DDECODE_NEC=true
	// -DSEND_NEC=true
	// ```
	// If you want to enable support for every protocol *except* _decoding_ the
	// Kelvinator protocol, you would use:
	// `-DDECODE_KELVINATOR=false`