RB-Dfr-482 - Multi USB/RS232/RS485/TTL Converter
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void setup()
{
Serial.begin(115200);
}
void loop()
{
Serial.print("Hello,DFRobot！");
Serial.println();
delay(500);
}
Other Reference Connection
1.TTL to 232 converter
PIN RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
2.USB to 485 converter
