I have used the Arduino Zero device to test the AnalogReadFast code. Hi I have the following code which also includes the Streaming library which i have downloaded from Streaming5.zip. Inline Print &operator <<(Print &obj, _EndLineCode arg)ĭ:\Arduino\libraries\Streaming/Streaming.h:102:15: note: no known conversion for argument 1 from 'String' to 'Print&' Inline Print &operator <<(Print &obj, const _FLOAT &arg)ĭ:\Arduino\libraries\Streaming/Streaming.h:91:15: note: no known conversion for argument 1 from 'String' to 'Print&'ĭ:\Arduino\libraries\Streaming/Streaming.h:102:15: note: Print& operator<<(Print&, _EndLineCode) Inline Print &operator <<(Print &obj, const _BASED &arg)ĭ:\Arduino\libraries\Streaming/Streaming.h:73:15: note: no known conversion for argument 1 from 'String' to 'Print&'ĭ:\Arduino\libraries\Streaming/Streaming.h:91:15: note: Print& operator<<(Print&, const _FLOAT&) Inline Print &operator <<(Print &obj, const _BYTE_CODE &arg)ĭ:\Arduino\libraries\Streaming/Streaming.h:54:15: note: no known conversion for argument 1 from 'String' to 'Print&'ĭ:\Arduino\libraries\Streaming/Streaming.h:73:15: note: Print& operator<<(Print&, const _BASED&) Sketch_oct03b.ino:6:15: note: cannot convert 'my_pstring' (type 'String') to type 'Print&'ĭ:\Arduino\libraries\Streaming/Streaming.h:54:15: note: Print& operator<<(Print&, const _BYTE_CODE&) Inline Print &operator <<(Print &stream, T arg)ĭ:\Arduino\libraries\Streaming/Streaming.h:33:15: note: template argument deduction/substitution failed: ![]() In file included from sketch_oct03b.ino:1:0:ĭ:\Arduino\libraries\Streaming/Streaming.h:33:15: note: template Print& operator<<(Print&, T) Sketch_oct03b.ino:6:12: note: candidates are: Sketch_oct03b.ino:6:12: error: no match for ‘operator<<' (operand types are 'String' and 'const char ') Sketch_oct03b.ino: In function ‘void setup()’: You can get the current version number of the library by inspecting STREAMING_LIBRARY_VERSION.Īrduino: 1.5.7 (Windows XP), Board: “Arduino Mega or Mega 2560, ATmega2560 (Mega 2560)” The latest version of Streaming is available at Streaming5.zip. In the meanwhile, I use it in every sketch I build now! Download I hope someday that this simple template will become part of the Arduino core as a stylistic option to writing series of prints. (Because the operator functions are essentially just inline aliases for their print() counterparts, no sketch gets larger or consumes more RAM as a result of their inclusion.) This syntax is familiar to many, is easy to read and learn, and, importantly, consumes no resources. Lcd << "The key pressed was " << _BYTE(c) << endl Serial << "Byte value: " << _HEX(b) << endl With the new library you can also use formatting manipulators like this: ![]() Lcd << "Temp: " << t.get_temperature() << " degrees" ![]() ![]() This library works for any class that derives from Print: The Streaming library gives you the option of compressing those into “insertion style” code that, if not exactly the same, is reminiscent of the concatenation above:ĭay << "-" << month << "-" << year << endl Meanwhile, experienced programmers chafe at having to synthesize streams with clumsy blocks of repetitive code like this: Lcd.print("The button was pressed " + counter + " times") New users sometimes wonder why the “Arduino language” doesn’t provide the kind of concatenation or streaming operations they have become accustomed to in Java/VB/C#/C++, etc. Note: Streaming 5 is now Arduino 1.0 compatible. Streaming C++-style Output with Operator <<
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