RE: LEDs inverted with nRF Connect SDK DK Button and LEDs

brec — Thu, 05 Aug 2021 19:45:36 GMT

Thanks Stian, That did the trick.

I placed CONFIG_DK_LIBRARY_INVERT_LEDS=n in the <boardname>_cpuapp_defconfig, <boardname>_cpuappns_defconfig, and <boardname>_cpunet_defconfig to cover all cases for this board.

Bob

RE: LEDs inverted with nRF Connect SDK DK Button and LEDs

Stian Røed Hafskjold — Thu, 05 Aug 2021 14:32:58 GMT

Hi, it the peripheral_lbs sample is using the dk_buttons_and_leds library which is setting the output of the GPIO based on the CONFIG_DK_LIBRARY_INVERT_LEDS config:

err = gpio_pin_set_raw(led_devs[led_idx], led_pins[led_idx].number, IS_ENABLED(CONFIG_DK_LIBRARY_INVERT_LEDS) ? !val : val);

https://github.com/nrfconnect/sdk-nrf/blob/41202f304f0e67423448afc5368fd4d640cb73e6/lib/dk_buttons_and_leds/dk_buttons_and_leds.c#L388

The config is set to =y by default, so changing this to =n should give you an active high output.