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This class provides functionality useful for debugging sketches viaprintf-style statements.

Arduino_DebugUtils has 6 different debug levels (described descending from highest to lowest priority):

• DBG_NONE - no debug output is shown
• DBG_ERROR - critical errors
• DBG_WARNING - non-critical errors
• DBG_INFO - information
• DBG_DEBUG - more information
• DBG_VERBOSE - most information

The desired debug level can be set viasetDebugLevel(DBG_WARNING).

Debug messages are written viaprint which supportsprintf-style formatted output.

Example:

int i =1;float pi =3.1459;DEBUG_VERBOSE("i = %d, pi = %f", i, pi);

Note: The output of floating point numbers (%f) does NOT work onArduinoCore-avr.

If desired, timestamps can be prefixed to the debug message. Timestamp output can be enabled and disabled viatimestampOn andtimestampOff.

Normally all debug output is redirected to the primary serial output of each board (Serial). In case you want to redirect the output to another output stream you can make use ofsetDebugOutputStream(&Serial2).

Arduino_DebugUtils Object that will be used for calling member functions.

Parameter debug_level in order of lowest to highest priority are :DBG_NONE,DBG_ERROR,DBG_WARNING,DBG_INFO (default),DBG_DEBUG, andDBG_VERBOSE.

Return type: void.

Example:

Debug.setDebugLevel(DBG_VERBOSE);

By default, Output Stream is Serial. In advanced cases other objects could be other serial ports (if available), or can be a Software Serial object.

Return type: void.

Example:

SoftwareSerialmySerial(10,11);// RX, TXDebug.setDebugOutputStream(&mySerial);

Calling this function switches on the timestamp in theDebug.print() function call;By default, printing timestamp is off, unless turned on using this function call.

Return type: void.

Example:

Debug.timestampOn();DBG_VERBOSE("i = %d", i);//Output looks like : [ 21007 ] i = 21

Calling this function switches off the timestamp in theDebug.print() function call;

Return type: void.

Example:

Debug.timestampOff();DEBUG_VERBOSE("i = %d", i);//Output looks like : i = 21

Calling this function ensures that a newline will be sent at the end of theDebug.print() function call;By default, a newline is sentReturn type: void.

Example:

Debug.newlineOn();

Calling this function ensure that a newline will NOT be sent at the end of theDebug.print() function call;By default a newline is sent. Call this to shut that functionality off.Return type: void.

Example:

Debug.timestampOff();

This function prints the message if parameterdebug_level in theDebug.print(debug_level, ...) function call belongs to the range: DBG_ERROR <= debug_level <= (<DBG_LEVEL> that has been set usingsetDebugLevel() function).

Return type: void.

Example:

Debug.setDebugLevel(DBG_VERBOSE);int i =0;DEBUG_VERBOSE("DBG_VERBOSE i = %d", i);