Introduction - If you have any usage issues, please Google them yourself
Chip: STC12C5A60S2
Crystal: 16MHz Baud Rate: 4800bps
Pin definitions: Serial port 1: Send TxD/P3.1 receiving RxD/P3.0
Serial port 2: Send TxD2/P1.3 receiving RxD2/P1.2
Function Description: STC12 Two serial communication (interrupt)
When a serial port after receiving GPS data (4800 baud), this data is sent out by the serial port 2
When the serial port 2 receives data, this data is sent out by the serial port 1