/* * Copyright (c) 2021 The ZMK Contributors * * SPDX-License-Identifier: MIT */ &spi1 { compatible = "nordic,nrf-spim"; status = "okay"; mosi-pin = <6>; // Unused pins, needed for SPI definition, but not used by the ws2812 driver itself. sck-pin = <5>; miso-pin = <7>; led_strip: ws2812@0 { compatible = "worldsemi,ws2812-spi"; label = "WS2812"; /* SPI */ reg = <0>; /* ignored, but necessary for SPI bindings */ spi-max-frequency = <4000000>; /* WS2812 */ chain-length = <8>; /* number of LEDs */ spi-one-frame = <0x70>; spi-zero-frame = <0x40>; }; }; / { chosen { zmk,underglow = &led_strip; }; };