How to specify build flags to ESPHome yaml

[hideosasaki]

Hi all, does any one knows how I write down build_flags to ESPHome yaml?

For instance, I set the build_flags in my ESPHome yaml like:

esphome:
  name: $devicename
  platform: ESP32
  board: m5stick-c
  platformio_options:
    build_flags: -D_IR_ENABLE_DEFAULT_=false 
        -DDECODE_MITSUBISHI=true 
        -DSEND_MITSUBISHI=true
  libraries:
    - IRremoteESP8266

but the compiler included the all features. I wanted to use only Mitsubishi A/C feature. Is something wrong?

[crankyoldgit]

I'm not sure as I don't use ESPHome, so you're best asking them if you've got the build flags component correct.

What I can point out is that you've probably enabling the incorrect IR protocol. The Mitsubishi A/Cs don't typically use the MITSUBISHI protocol. You probably want to enable one of these:

IRremoteESP8266/src/IRremoteESP8266.h

Lines 268 to 287 in 74f4136

	#ifndef DECODE_MITSUBISHI_AC
	#define DECODE_MITSUBISHI_AC _IR_ENABLE_DEFAULT_
	#endif // DECODE_MITSUBISHI_AC
	#ifndef SEND_MITSUBISHI_AC
	#define SEND_MITSUBISHI_AC _IR_ENABLE_DEFAULT_
	#endif // SEND_MITSUBISHI_AC
	#ifndef DECODE_MITSUBISHI136
	#define DECODE_MITSUBISHI136 _IR_ENABLE_DEFAULT_
	#endif // DECODE_MITSUBISHI136
	#ifndef SEND_MITSUBISHI136
	#define SEND_MITSUBISHI136 _IR_ENABLE_DEFAULT_
	#endif // SEND_MITSUBISHI136
	#ifndef DECODE_MITSUBISHI112
	#define DECODE_MITSUBISHI112 _IR_ENABLE_DEFAULT_
	#endif // DECODE_MITSUBISHI112
	#ifndef SEND_MITSUBISHI112
	#define SEND_MITSUBISHI112 _IR_ENABLE_DEFAULT_
	#endif // SEND_MITSUBISHI112

That said, at first glance, you're using the library's build flags correctly. I'd have expected only the MITSUBISHI protocol to have been included if those were the flags used. :-/

[crankyoldgit]

Just a suggestion:
Try putting them all on one line. eg.

build_flags: -D_IR_ENABLE_DEFAULT_=false -DSEND_MITSUBISHI_AC=true -DDECODE_MITSUBISHI_AC=true

(Edited to fix syntax)

[hideosasaki]

Thank you @crankyoldgit
Oh, it must be DECODE_MITSUBISHI_AC and SEND_MITSUBISHI_AC.
I'll ask this issue to the ESPHome community as well.

one line... nothing changed, unfortunately.

[crankyoldgit]

Looking at this: esphome/esphome#1651
The syntax might be:

  platformio_options:
    build_flags: 
      - -D_IR_ENABLE_DEFAULT_=false
      - -DSEND_MITSUBISHI_AC=true
      - -DDECODE_MITSUBISHI_AC=true

or

  platformio_options:
    build_flags: 
      - -D_IR_ENABLE_DEFAULT_=false -DSEND_MITSUBISHI_AC=true -DDECODE_MITSUBISHI_AC=true

[hideosasaki]

Yes, the build flags affected by what you pointed out. Thank you!