blinky/boards/atguigu/mini_keyboard/mini_keyboard.dts

/dts-v1/;
#include <nordic/nrf52840_qiaa.dtsi>
#include "mini_keyboard-pinctrl.dtsi"
#include <zephyr/dt-bindings/adc/adc.h>

/ {
	model = "Mini keyboard";
	compatible = "atguigu,mini-keyboard";

	chosen {
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,code-partition = &slot0_partition;
	};

	aliases {
        led0 = &myled0;
    };

    leds {
        compatible = "gpio-leds";
        myled0: led_0 {
            gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
        };
    };

	vbatt: vbatt {
		compatible = "voltage-divider";
		io-channels = <&adc 7>;
		output-ohms = <100000>;
		full-ohms = <200000>;
		power-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
		power-on-sample-delay-us = <200>;
	};
};

&flash0 {
	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x00000000 DT_SIZE_K(48)>;
		};

		slot0_partition: partition@c000 {
			label = "image-0";
			reg = <0x0000c000 DT_SIZE_K(472)>;
		};

		slot1_partition: partition@82000 {
			label = "image-1";
			reg = <0x00082000 DT_SIZE_K(472)>;
		};

		storage_partition: partition@f8000 {
			label = "storage";
			reg = <0x000f8000 DT_SIZE_K(32)>;
		};
	};
};

&uicr {
	nfct-pins-as-gpios;
};

&adc {
	status = "okay";
	#address-cells = <1>;
	#size-cells = <0>;

	channel@7 {
		reg = <7>;
		zephyr,gain = "ADC_GAIN_1_4";
		zephyr,reference = "ADC_REF_INTERNAL";
		zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_MICROSECONDS, 40)>;
		zephyr,input-positive = <NRF_SAADC_AIN7>;
		zephyr,resolution = <14>;
		zephyr,oversampling = <4>;
	};
};

&i2c0 {
	status = "okay";
	pinctrl-0 = <&i2c0_default>;
	pinctrl-1 = <&i2c0_sleep>;
	pinctrl-names = "default", "sleep";
	clock-frequency = <400000>;

	ip5306: pmic@75 {
		compatible = "injoinic,ip5306";
		reg = <0x75>;
		wakeup-gpios = <&gpio0 22 GPIO_ACTIVE_LOW>;
		keepalive-interval-ms = <8000>;
		keepalive-pulse-width-ms = <500>;
		keepalive-hardware;
		status = "okay";
	};
};

&gpio0 {
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&gpiote {
	status = "okay";
};