Read BMS RX,TX via arduino

Other Hardware General Electronics
1

i have a 36v 12.5ah battery with BMS. now i try from arduino to read BMS information so
i connect GND to C- , RX-TX TX-RX

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Here is Document information:
Document (292.8 KB)




#include <SoftwareSerial.h>

SoftwareSerial BMS_serial(2, 3);  // RX, TX (connect TX of Arduino to RX of the device and vice versa)

void setup() {
  Serial.begin(9600);    // USB Serial communication
  BMS_serial.begin(9600);  // SoftwareSerial communication
}

void loop() {
  Serial.println("SEND 1");

  byte hexData[] = { 0x3A, 0x16, 0x02, 0x00, 0x18, 0x00, 0x0D, 0x0A };
  for (int i = 0; i < sizeof(hexData); i++) {
    BMS_serial.write(hexData[i]);
  }


  while (BMS_serial.available()) {
    char receivedChar = BMS_serial.read();
    Serial.print(receivedChar);
  }

  delay(3000);





  Serial.println("SEND 2");

  byte hexDataDD[] = { 0x3A, 0x16, 0x04, 0x00, 0x1A, 0x00, 0x0D, 0x0A };
  for (int i = 0; i < sizeof(hexDataDD); i++) {
    BMS_serial.write(hexDataDD[i]);
  }


  while (BMS_serial.available()) {
    char receivedChar = BMS_serial.read();
    Serial.print(receivedChar);
  }
  delay(3000);

}
2

are you able to translate that document in english?
do you succeed to read some data?

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