TTL to RS232 converter (SP3232)

This module is essentially: the TTL level into the computer serial port RS232 level.

ใช้ชิป SP3232

RS232 Level: 

Logic 1 = -3V ~ -15V   Logic 0 = + 3 ~ + 15V
TTL      

Level: Logic 1 = 5V                  Logic 0 = 0V

Instructions for use: (to access MCU as an example, that the pin how to connect)

VCC: then 3V-5.5V

GND: Connect to GND

RxOUT: connected to MCU.RX (signal flow: MCU.RX << SP3232 << PC.TX)

TxIN: connected to MCU.TX (signal flow: MCU.TX >> SP3232 >> PC.RX)

CTS: Connect MCU.CTS (signal flow: MCU.CTS << SP3232 << PC.RTS)

RTS: connected to MCU.RTS (signal flow: MCU.RTS >> SP3232 >> PC.CTS)