/* | |
* Copyright (c) 2022, Thomas Stranger | |
* | |
* SPDX-License-Identifier: Apache-2.0 | |
*/ | |
/* | |
* Example configuration of a DS18B20 device on an Arduino serial bus. | |
* Open drain configuration allows communication by simply connecting the bus | |
* line to: | |
* a) the UART RX pin as well as the TX pin. | |
* b) the UART TX pin only, while the single wire half-duplex mode is enabled. | |
* An external pull-up should be added anyways. | |
*/ | |
#include "serial_overlay.dtsi" | |
&usart1_tx_pc4 { | |
drive-open-drain; | |
bias-pull-up; | |
}; |