Can the Simple Hardware Abstraction Layer be used to control LEDs that are &quot;active high&quot;?https://devzone.nordicsemi.com/f/nordic-q-a/37559/can-the-simple-hardware-abstraction-layer-be-used-to-control-leds-that-are-active-highHi, I am playing around with the the Bluetooth Mesh SDK (`nrf5_SDK_for_Mesh_v2.1.1_src`), more precisely with the light-switch `proxy server` example. The nRF52 DK&#39;s LEDs are &quot;active low&quot;, but my custom board has &quot;active high&quot; LEDs. The firmware worksen-USTelligent Community 13Wed, 24 Feb 2021 07:02:41 GMTRE: Can the Simple Hardware Abstraction Layer be used to control LEDs that are "active high"?https://devzone.nordicsemi.com/thread/295941?ContentTypeID=1Wed, 24 Feb 2021 07:02:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a2068ee0-d51b-4d07-86ce-05a200508812Brainson <p>what does it mean can you please tell me, same problem for me also.&nbsp;</p><div style="clear:both;"></div>RE: Can the Simple Hardware Abstraction Layer be used to control LEDs that are "active high"?https://devzone.nordicsemi.com/thread/144859?ContentTypeID=1Mon, 20 Aug 2018 08:15:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f5818ad4-bb12-407d-a6c1-df97ed0b657dBj&#248;rn Kvaale<p>Hi Frank,</p> <p>Have you tried setting the hal_led_pin_set function to false to turn the LED on? You should just be able to update the&nbsp;bool value argument to be the opposite of what the mesh sdk does. This should then work for active high LEDs.</p> <p>Kind Regards,</p> <p>Bjørn</p><div style="clear:both;"></div>