nrf5340dk_nrf5340_cpuapp.overlay

&i2c1 {
	status = "okay";
	compatible = "nordic,nrf-twim";
	label = "I2C_1";
	pinctrl-0 = <&i2c1_default>;
	pinctrl-1 = <&i2c1_sleep>;
	pinctrl-names = "default", "sleep";
	clock-frequency = <100000>; 
};

&pinctrl {
	i2c1_default: i2c1_default{
		group1 {
			psels = <NRF_PSEL(TWIM_SDA, 0, 5)>,
				<NRF_PSEL(TWIM_SCL, 0, 4)>;
		};
	};

	i2c1_sleep: i2c1_sleep{
		group1 {
			psels = <NRF_PSEL(TWIM_SDA, 0, 5)>,
				<NRF_PSEL(TWIM_SCL, 0, 4)>;
			low-power-enable;
		};
	};

};