| #include <zephyr/dt-bindings/led/led.h> |
| |
| /* Wiring: |
| * - M1.S connected to GND |
| * - SDOUT connected to M1.D |
| * - ~300 ohm resistor between M1.D and TP5 (5V / Vbus) |
| */ |
| |
| &pinctrl { |
| i2s0_default_alt: i2s0_default_alt { |
| group1 { |
| psels = <NRF_PSEL(I2S_SCK_M, 0, 20)>, |
| <NRF_PSEL(I2S_LRCK_M, 0, 19)>, |
| <NRF_PSEL(I2S_SDOUT, 0, 18)>, |
| <NRF_PSEL(I2S_SDIN, 0, 21)>; |
| }; |
| }; |
| }; |
| |
| i2s_led: &i2s0 { |
| status = "okay"; |
| pinctrl-0 = <&i2s0_default_alt>; |
| pinctrl-names = "default"; |
| }; |
| |
| / { |
| led_strip: ws2812 { |
| compatible = "worldsemi,ws2812-i2s"; |
| |
| i2s-dev = < &i2s_led >; |
| chain-length = <10>; /* arbitrary; change at will */ |
| color-mapping = <LED_COLOR_ID_GREEN |
| LED_COLOR_ID_RED |
| LED_COLOR_ID_BLUE>; |
| out-active-low; |
| reset-delay = <120>; |
| }; |
| |
| aliases { |
| led-strip = &led_strip; |
| }; |
| }; |
