#pragma once #include "../shared/bool.h" /** @file serial.h */ /** * read byte from serial port * * @return -1 if read fails, else char read */ int w2_serial_read(); /** write `data` with length `length` to serial port */ bool w2_serial_write(char *data, uint8_t length); /** open serial port */ bool w2_serial_open(const char *port_name); /** close serial port */ void w2_serial_close();