long a=78787653;
String tx="String tx1";
char c[]="char",d[64];
String com=",";

void setup() {
Serial.begin(9600);
tx+=com + (String)c+com+(String)a+com;
tx.toCharArray(d,64);
int t=sizeof(tx)-1;
Serial.write(d,tx.length());
Serial.println(t);
}

void loop() {
  

}