Hi,
I am attempting to write a library for communicating with a piece of lab equipment and I would like to be able to select, in the constructor, which serial port on an arduino mega to use for the communication. I can certainly hard code it, but hopefully someone knows a nice way to do this.
Thanks!
Select how?
You could make a reference to the serial object. Without seeing your code it is hard to give better advice.
You could make a reference to the serial object
Sorry I don't know what you mean by reference.
Without seeing your code it is hard to give better advice.
Right now I have the serial port hard coded in the constructor:
Wavemeter::Wavemeter(int baud) {
Serial.begin(baud);
Serial.write("Power On\n");
// initialization of values removed
}
What I would like to do it be able to select an arbitrary port in the constructor like so:
Wavemeter::Wavemeter(int port, baud) {
Serial.begin(port,baud);
Serial.write(port,"Power On\n");
// initialization of values removed
}
But it seems like in order to use the other serial ports the syntax is:
Serial1, Serial2 ...
which I don't know how to deal with
Like this:
class Wavemeter
{
public:
Wavemeter(HardwareSerial & port, const unsigned long baud) : port_ (port), baud_ (baud) {}
void begin ();
private:
HardwareSerial & port_;
const unsigned long baud_;
}; // end of class Wavemeter
void Wavemeter::begin ()
{
port_.begin (baud_);
port_.write("Power On\n");
} // end of Wavemeter::begin
Wavemeter foo (Serial1, 9600);
void setup ()
{
foo.begin ();
} // end of setup
void loop () {}
I was able to successfully create a test library based on your example code, thank you! The error messages I generated by playing with it also led me to some information on references.