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+--- Forum: KC868-A16S (https://www.kincony.com/forum/forumdisplay.php?fid=47)
+--- Thread: rs485 port with kc868-a16s. (/showthread.php?tid=6863)
rs485 port with kc868-a16s. - Alfred - 10-11-2024
i want to receive 16 bytes data through rs485 port with kc868-a16s.
but the received value is strange.
please le me know what should i check.
#define A16S_RS485_RX 32
#define A16S_RS485_TX 33
void setup() {
Serial.begin(115200);
Serial2.begin(19200,SERIAL_8N1,A16S_RS485_RX,A16S_RS485_TX); //A16S
Serial.println("A16S RS485 OK");
}
void loop() {
if (Serial2.available() > 0) {
Serial.print("rs485 received value : ");
Serial.println(Serial2.read());
}
delay(1000);
}
18:57:15.956 -> rs485 received value : 1
18:57:16.936 -> rs485 received value : 134
18:57:17.966 -> rs485 received value : 160
18:57:19.011 -> rs485 received value : 255
18:57:19.932 -> rs485 received value : 255
18:57:20.964 -> rs485 received value : 255
18:57:21.944 -> rs485 received value : 240
18:57:22.973 -> rs485 received value : 0
18:57:23.950 -> rs485 received value : 0
18:57:24.938 -> rs485 received value : 0
18:57:25.967 -> rs485 received value : 30
18:57:26.948 -> rs485 received value : 165
sending data attached.
RE: rs485 port with kc868-a16s. - admin - 10-12-2024
if you have connect with RS485 device (maybe you are monitor the battery), i suggest you connect a USB-RS485 adapter to see what have received firstly. Then you can compare with the data if received by KC868-A16S.
RE: rs485 port with kc868-a16s. - Alfred - 10-13-2024
(10-12-2024, 12:48 AM)admin Wrote: if you have connect with RS485 device (maybe you are monitor the battery), i suggest you connect a USB-RS485 adapter to see what have received firstly. Then you can compare with the data if received by KC868-A16S.
now ok.
thank you!
RE: rs485 port with kc868-a16s. - admin - 10-13-2024
ok, good.