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- #ifndef _WS_UART_H_
- #define _WS_UART_H_
- #include <HardwareSerial.h> // Reference the ESP32 built-in serial port library
- #define TXD2 43 //The TXD of UART1 corresponds to GPIO
- #define RXD2 44 //The RXD of UART1 corresponds to GPIO
- #define TXD3 15 //The TXD of UART1 corresponds to GPIO
- #define RXD3 16 //The RXD of UART1 corresponds to GPIO
- void SetData2(uint8_t* data, size_t length); // Send data from the Port 0
- void SetData3(uint8_t* data, size_t length); // Send data from the Port 2
- void Extension_Init(); // Example Initialize the system serial port
- void Extension_Loop(); // Read serial data and print
- #endif
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