Matter Light Bulb Change Default LED1 Usage

RE: Matter Light Bulb Change Default LED1 Usage

AHaug — Fri, 29 Nov 2024 08:35:53 GMT

My bad, I had the 0-indexing of LED numbers which is present on the nRF54L15DK fresh in my mind and not the 1-indexing from the nRF52/nRF53 devices there. I thought you were referring to the Light bulb imitating LED and not the status LED.

Status LED and everything thats common in between the Matter samples can be found in "<sdk>\nrf\samples\matter\common\src\board"

I recommend you start with board.cpp and .h.

Kind regards,
Andreas

RE: Matter Light Bulb Change Default LED1 Usage

Jacky Ortega — Thu, 28 Nov 2024 20:42:57 GMT

Hi AHaug

That's not related to my question in hand. I know I can use LED3(p0.30) instead of LED1(P0.29) by changing the overlay.

My question and concern is related to LED 1(P0.28) which is somehow being used by matter light bulb sample and I cant find how?.

The thing is I have another use case for Pin 0.28 and want to use it as per my own business logic.

Note::
My original question still remains.

RE: Matter Light Bulb Change Default LED1 Usage

AHaug — Thu, 28 Nov 2024 13:57:53 GMT

Hi Jacky,

In the Light bulb sample, the LED is controlled by the pwm0-device, which is set to LED1. If you change the following in your overlay

&pinctrl {
	pwm0_default_alt: pwm0_default_alt {
		group1 {
			psels = <NRF_PSEL(PWM_OUT1, 0, 29)>;
			nordic,invert;
		};
	};

	pwm0_sleep_alt: pwm0_sleep_alt {
		group1 {
			psels = <NRF_PSEL(PWM_OUT1, 0, 29)>;
			low-power-enable;
		};
	};
};

&pinctrl {
	pwm0_default_alt: pwm0_default_alt {
		group1 {
			psels = <NRF_PSEL(PWM_OUT1, 0, 30)>;
			nordic,invert;
		};
	};

	pwm0_sleep_alt: pwm0_sleep_alt {
		group1 {
			psels = <NRF_PSEL(PWM_OUT1, 0, 30)>;
			low-power-enable;
		};
	};
};

you should see that the pwm peripheral now generates a signal that drives P0.30 (LED3) instead of P0.29 (LED1)

Kind regards,
Andreas

RE: Matter Light Bulb Change Default LED1 Usage

Jacky Ortega — Fri, 22 Nov 2024 18:21:42 GMT

AHaug Yes it was just a typo.

My original question still remains.

RE: Matter Light Bulb Change Default LED1 Usage

AHaug — Fri, 22 Nov 2024 12:37:25 GMT

Hi,

[quote user=""]Please see my default nrf53440dk_nrf5340_cpuapp.overlay
[/quote]

Could you confirm if this is the name of the overlay or a typo? If it is the name of the overlay, could you rename it to "nrf5340dk_nrf5340_cpuapp.overlay"?

Kind regards,
Andreas