RUN_STATUS_LED in zigbee/light_bulb stops blinking if brightness is less than 100%!

RE: RUN_STATUS_LED in zigbee/light_bulb stops blinking if brightness is less than 100%!

Sergey A. — Wed, 29 Sep 2021 04:53:33 GMT

Hi Marte,

Indeed, I deleted ch0-pin association with pwm0 and the issue has gone away.

Thank you for your prompt and professional reply!

Best regards,

Sergey

RE: RUN_STATUS_LED in zigbee/light_bulb stops blinking if brightness is less than 100%!

Marte Myrvold — Tue, 28 Sep 2021 12:31:15 GMT

Hi Sergey,

This is caused by the pins for LED 1 and LED 4 both being configured as PWM0. LED 4 is configured specifically for this sample, which you can find in the overlay file boards/nrf52840dk_nrf52840.overlay, while LED 1 is the default PWM LED for nRF52840 DK and is configured in the board file zephyr/boards/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840.dts.

If you need to disable LED 1 as PWM LED you can do so by deleting the ch0-pin property in the overlay file:

&pwm0 {

ch1-pin = <16>;

ch1-inverted;

/delete-property/ ch0-pin;

};

Best regards,

Marte

RE: RUN_STATUS_LED in zigbee/light_bulb stops blinking if brightness is less than 100%!

Marte Myrvold — Mon, 27 Sep 2021 14:58:58 GMT

Hi Sergey,

I am able to reproduce this on my side, but it seems like RUN_STATUS_LED stops blinking when LED 4 is turned on completely as well, and it will only blink if LED 4 is turned off.

I have started looking into this, and I will come back to you tomorrow.

Best regards,

Marte