1/* 2 * Copyright (c) 2022 Thomas Stranger 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7/* external connection of TX-pin to RX-pin needed */ 8&pinctrl { 9 uart1_default: uart1_default { 10 group1 { 11 psels = <NRF_PSEL(UART_RX, 1, 1)>; 12 bias-pull-up; 13 }; 14 group2 { 15 psels = <NRF_PSEL(UART_TX, 1, 2)>; 16 /* max. 5mA drive strength: */ 17 nordic,drive-mode = <NRF_DRIVE_H0D1>; 18 }; 19 }; 20}; 21