[Arduino IDE demo source code for KC868-A8S]--#09-KC868-A8S_RS485_code
Code:
/*WWW.KINCONY.COM*/
/*KC868-A8s code of RS485 */
void setup() {
Serial2.begin(9600,SERIAL_8N1,32,33); // IO32 485RX IO33 485TX
}
void loop() {
Serial2.println("KinCony ACBDEFG"); // Enter your print string
delay(1500);
}