#include <SoftwareSerial.h>
#define SSerialRX        10
#define SSerialTX        11
#define SSerialTxControl 3
#define RS485Transmit    HIGH
#define RS485Receive     LOW

SoftwareSerial RS485Serial(SSerialRX, SSerialTX); // RX, TX

struct mydata {
  int cmd[3] = {822, 4256, 22};
  int count[3] = {0, 55, 338};
  int temp[3] = {18, 11794, 745};
  char str[20] = "hello world!";
  float val[2]  = {18.8,17.9};
};
mydata dato ;



void setup() {
  RS485Serial.begin(9600);
  Serial.begin(9600);
  pinMode(13, OUTPUT);
  pinMode(SSerialTxControl, OUTPUT);
  digitalWrite(SSerialTxControl, RS485Receive);  // Init Transceiver
}
void loop() {
 if (RS485Serial.available()) {
    byte n = RS485Serial.read();
    if (n == 0) {
      Serial.println("mi chiama ");
      digitalWrite(13, HIGH);
      readSensor();
    }
  }
}
void readSensor() {
  digitalWrite(SSerialTxControl, RS485Transmit);
  RS485Serial.write((const uint8_t *)&dato, sizeof(struct mydata));
  RS485Serial.write((byte)'\n');
  dato.count[1]++;
  dato.val[1]=dato.val[1]+0.01;
  digitalWrite(SSerialTxControl, RS485Receive);
  digitalWrite(13, LOW);
  Serial.print("dato.count[1]"); Serial.println(dato.count[1]);
}