How should I index HardwareSerial ports into a single array?.
This compiles, but do not work.
HardwareSerial Serials[]={Serial,Serial1,Serial2,Serial3};
void setup(){
for (int i=0;i<=3;i++){
Serials[i].begin(38400);
while (!Serials[i]);
}
}
char s;
void loop(){
for (int i=0;i<=3;i++){
if (Serials[i].available()){
s=Serials[i].read();
Serials[i].write(s);
}
}
}
your code makes copies of Serials into items in the array of HardwareSerials. To use the original Serial objects, store and use pointers.
HardwareSerial* Serials[]={&Serial,&Serial1,&Serial2,&Serial3};
void setup(){
for (int i=0;i<=3;i++){
Serials[i]->begin(38400);
while (!*Serials[i]);
}
}
void loop(){
for (int i=0;i<=3;i++){
if (Serials[i]->available()){
char s=Serials[i]->read();
Serials[i]->write(s);
}
}
}
