RE: GPIO - nRF9160 - on low battery (<3.0V), some GPIOs seems to stick/switch to output mode active

Achim Kraus — Sat, 24 Jan 2026 09:10:51 GMT

Thanks.

RE: GPIO - nRF9160 - on low battery (<3.0V), some GPIOs seems to stick/switch to output mode active

Øyvind — Fri, 23 Jan 2026 13:11:52 GMT

Hello,

Unfortunately, as you point out, as this is out of speck there is not much that can be done.

Kind regards,
Øyvind

RE: GPIO - nRF9160 - on low battery (<3.0V), some GPIOs seems to stick/switch to output mode active

Achim Kraus — Thu, 22 Jan 2026 15:23:42 GMT

Used overlay:

&pinctrl {

	uart0_default: uart0_default {
		group1 {
			psels = <NRF_PSEL(UART_TX, 0, 23)>,
				<NRF_PSEL(UART_RTS, 0, 25)>;
		};
		group2 {
			psels = <NRF_PSEL(UART_RX, 0, 22)>,
				<NRF_PSEL(UART_CTS, 0, 24)>;
			bias-pull-up;
		};
	};

	uart0_sleep: uart0_sleep {
		group1 {
			psels = <NRF_PSEL(UART_TX, 0, 23)>,
				<NRF_PSEL(UART_RX, 0, 22)>,
				<NRF_PSEL(UART_RTS, 0, 25)>,
				<NRF_PSEL(UART_CTS, 0, 24)>;
			low-power-enable;
		};
	};
};

/	{

	leds {
		led0: led_0 {
			gpios = <&gpio0 26 0>;
		};
		led1: led_1 {
			gpios = <&gpio0 27 0>;
		};
		led2: led_2 {
			gpios = <&gpio0 28 0>;
		};
	};

};

&uart1 {
	status = "disabled";
};

&i2c2 {
	status = "disabled";
};

&spi3 {
	status = "disabled";
};

GPIO for led0 and led1 are high, led2 is low. I don't see, that this is controlled by the app.