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Arduino wrap or Subclass print() to work with multiple Serial
AES Simplified for Arduino - Having hard time achieving desired resultAdvice for checking integrity of serial char strings?How to read long value sent by Arduino in CHelp with a Memory IssueHow to break out of a loop if it is contained in a functionNeed help with the basics on serial controlWhy is integer-to-string not working in this sketch?Arduino to read from RS232 converter to TTL serial module (updated)47Effects MIDI Library and serial debuggingESP8266 sends data to the website but doesn't return status
I am writing an Arduino program that uses Bluetooth on Serial1 to print text to a Bluetooth terninal on an Android phone and also normal Serial to print text to the serial monitor on a laptop. I would like to wrap the Serial.print() and Serial.println() functions so that they work with either or both Serial and Serial1. For example the code below works fine depending on the values of the global variables. But this only works for single chars, but print() and println() can take a very wide variety of datatypes. If I also define overloading functions for int and String types it works fine, but that is a very verbose and maybe fragile solution, it also ignores the optional inputs to the underlying functions. What is the proper way to do this ?
void print(char x)
if (g_use_Serial)
Serial.print(x);
if (g_use_Serial1)
Serial1.print(x);
void println(char x)
if (g_use_Serial)
Serial.println(x);
if (g_use_Serial1)
Serial1.println(x);
arduino-uno serial c
asked 8 hours ago
Hubert BHubert B
112
add a comment |
I am writing an Arduino program that uses Bluetooth on Serial1 to print text to a Bluetooth terninal on an Android phone and also normal Serial to print text to the serial monitor on a laptop. I would like to wrap the Serial.print() and Serial.println() functions so that they work with either or both Serial and Serial1. For example the code below works fine depending on the values of the global variables. But this only works for single chars, but print() and println() can take a very wide variety of datatypes. If I also define overloading functions for int and String types it works fine, but that is a very verbose and maybe fragile solution, it also ignores the optional inputs to the underlying functions. What is the proper way to do this ?
void print(char x)
if (g_use_Serial)
Serial.print(x);
if (g_use_Serial1)
Serial1.print(x);
void println(char x)
if (g_use_Serial)
Serial.println(x);
if (g_use_Serial1)
Serial1.println(x);
arduino-uno serial c
asked 8 hours ago
Hubert BHubert B
112
add a comment |
I am writing an Arduino program that uses Bluetooth on Serial1 to print text to a Bluetooth terninal on an Android phone and also normal Serial to print text to the serial monitor on a laptop. I would like to wrap the Serial.print() and Serial.println() functions so that they work with either or both Serial and Serial1. For example the code below works fine depending on the values of the global variables. But this only works for single chars, but print() and println() can take a very wide variety of datatypes. If I also define overloading functions for int and String types it works fine, but that is a very verbose and maybe fragile solution, it also ignores the optional inputs to the underlying functions. What is the proper way to do this ?
void print(char x)
if (g_use_Serial)
Serial.print(x);
if (g_use_Serial1)
Serial1.print(x);
void println(char x)
if (g_use_Serial)
Serial.println(x);
if (g_use_Serial1)
Serial1.println(x);
arduino-uno serial c
asked 8 hours ago
Hubert BHubert B
112
I am writing an Arduino program that uses Bluetooth on Serial1 to print text to a Bluetooth terninal on an Android phone and also normal Serial to print text to the serial monitor on a laptop. I would like to wrap the Serial.print() and Serial.println() functions so that they work with either or both Serial and Serial1. For example the code below works fine depending on the values of the global variables. But this only works for single chars, but print() and println() can take a very wide variety of datatypes. If I also define overloading functions for int and String types it works fine, but that is a very verbose and maybe fragile solution, it also ignores the optional inputs to the underlying functions. What is the proper way to do this ?
void print(char x)
if (g_use_Serial)
Serial.print(x);
if (g_use_Serial1)
Serial1.print(x);
void println(char x)
if (g_use_Serial)
Serial.println(x);
if (g_use_Serial1)
Serial1.println(x);
arduino-uno serial c
arduino-uno serial c
asked 8 hours ago
Hubert BHubert B
112
asked 8 hours ago
Hubert BHubert B
112
asked 8 hours ago
Hubert BHubert B
112
asked 8 hours ago
Hubert BHubert B
112
asked 8 hours ago
Hubert BHubert B
112
112
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can create a class derived from Print that forwards its output to
either or both Serial and Serial1. The only method you need to
implement for this to work is write(uint8_t):
class DualPrint : public Print
public:
DualPrint() : use_Serial(false), use_Serial1(false)
virtual size_t write(uint8_t c)
if (use_Serial) Serial.write(c);
if (use_Serial1) Serial1.write(c);
return 1;
bool use_Serial, use_Serial1;
out;
You would use it like this:
out.use_Serial = true;
out.println("Printed to Serial only");
out.use_Serial1 = true;
out.println("Printed to both Serial and Serial1");
out.use_Serial = false;
out.println("Printed to Serial1 only");
Note that with this approach, unlike yours, printing number will format
them as text only once, and the underlying Serial and Serial1 will
only handle the resulting characters.
answered 7 hours ago
Edgar BonetEdgar Bonet
25.6k22546
for advanced users I would overrideavailableForWrite()andflush()too
– Juraj
28 mins ago
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can create a class derived from Print that forwards its output to
either or both Serial and Serial1. The only method you need to
implement for this to work is write(uint8_t):
class DualPrint : public Print
public:
DualPrint() : use_Serial(false), use_Serial1(false)
virtual size_t write(uint8_t c)
if (use_Serial) Serial.write(c);
if (use_Serial1) Serial1.write(c);
return 1;
bool use_Serial, use_Serial1;
out;
You would use it like this:
out.use_Serial = true;
out.println("Printed to Serial only");
out.use_Serial1 = true;
out.println("Printed to both Serial and Serial1");
out.use_Serial = false;
out.println("Printed to Serial1 only");
Note that with this approach, unlike yours, printing number will format
them as text only once, and the underlying Serial and Serial1 will
only handle the resulting characters.
answered 7 hours ago
Edgar BonetEdgar Bonet
25.6k22546
for advanced users I would overrideavailableForWrite()andflush()too
– Juraj
28 mins ago
add a comment |
You can create a class derived from Print that forwards its output to
either or both Serial and Serial1. The only method you need to
implement for this to work is write(uint8_t):
class DualPrint : public Print
public:
DualPrint() : use_Serial(false), use_Serial1(false)
virtual size_t write(uint8_t c)
if (use_Serial) Serial.write(c);
if (use_Serial1) Serial1.write(c);
return 1;
bool use_Serial, use_Serial1;
out;
You would use it like this:
out.use_Serial = true;
out.println("Printed to Serial only");
out.use_Serial1 = true;
out.println("Printed to both Serial and Serial1");
out.use_Serial = false;
out.println("Printed to Serial1 only");
Note that with this approach, unlike yours, printing number will format
them as text only once, and the underlying Serial and Serial1 will
only handle the resulting characters.
answered 7 hours ago
Edgar BonetEdgar Bonet
25.6k22546
for advanced users I would overrideavailableForWrite()andflush()too
– Juraj
28 mins ago
add a comment |
You can create a class derived from Print that forwards its output to
either or both Serial and Serial1. The only method you need to
implement for this to work is write(uint8_t):
class DualPrint : public Print
public:
DualPrint() : use_Serial(false), use_Serial1(false)
virtual size_t write(uint8_t c)
if (use_Serial) Serial.write(c);
if (use_Serial1) Serial1.write(c);
return 1;
bool use_Serial, use_Serial1;
out;
You would use it like this:
out.use_Serial = true;
out.println("Printed to Serial only");
out.use_Serial1 = true;
out.println("Printed to both Serial and Serial1");
out.use_Serial = false;
out.println("Printed to Serial1 only");
Note that with this approach, unlike yours, printing number will format
them as text only once, and the underlying Serial and Serial1 will
only handle the resulting characters.
answered 7 hours ago
Edgar BonetEdgar Bonet
25.6k22546
You can create a class derived from Print that forwards its output to
either or both Serial and Serial1. The only method you need to
implement for this to work is write(uint8_t):
class DualPrint : public Print
public:
DualPrint() : use_Serial(false), use_Serial1(false)
virtual size_t write(uint8_t c)
if (use_Serial) Serial.write(c);
if (use_Serial1) Serial1.write(c);
return 1;
bool use_Serial, use_Serial1;
out;
You would use it like this:
out.use_Serial = true;
out.println("Printed to Serial only");
out.use_Serial1 = true;
out.println("Printed to both Serial and Serial1");
out.use_Serial = false;
out.println("Printed to Serial1 only");
Note that with this approach, unlike yours, printing number will format
them as text only once, and the underlying Serial and Serial1 will
only handle the resulting characters.
answered 7 hours ago
Edgar BonetEdgar Bonet
25.6k22546
answered 7 hours ago
Edgar BonetEdgar Bonet
25.6k22546
answered 7 hours ago
Edgar BonetEdgar Bonet
25.6k22546
answered 7 hours ago
Edgar BonetEdgar Bonet
25.6k22546
25.6k22546
for advanced users I would overrideavailableForWrite()andflush()too
– Juraj
28 mins ago
add a comment |
for advanced users I would overrideavailableForWrite()andflush()too
– Juraj
28 mins ago
for advanced users I would override
availableForWrite() and flush() too– Juraj
28 mins ago
for advanced users I would override
availableForWrite() and flush() too– Juraj
28 mins ago
add a comment |
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