Function introduction: RS232 send receiver
Main features: 3V-5.5V power supply, with ESD protection, support flow control
Typical application: serial port level conversion
Main resources: SP3232, female DB9 interface, UART interface
Instructions for use: (Take the MCU as an example to explain how to connect each PIN)
VCC: Connect 3V-5.5V
GND: Connect to GND
RxOUT: connect to MCU.RX (signal flow direction: MCU.RX << SP3232 << PC.TX)
TxIN: connect to MCU.TX (signal flow direction: MCU.TX >> SP3232 >> PC.RX)
CTS: Connect to MCU.CTS (Signal flow direction: MCU.CTS << SP3232 << PC.RTS)
RTS: Connect to MCU.RTS (Signal flow direction: MCU.RTS >> SP3232 >> PC.CTS)