Remote debug messages with V_TEXT

[AWI]

Sometimes I want to have debug information from my nodes while these are not connected through serial. I.e. to discover "random" freezes of an outside weather node. So I rewrote a familiar macro

#define LOCAL_DEBUG
#ifdef LOCAL_DEBUG
	#define Sprint(a) (Serial.print(a))						// macro as substitute for print, enable if no print wanted
	#define Sprintln(a) (Serial.println(a))					// macro as substitute for println
#else														// no print
	#define Sprint(a)
	#define Sprintln(a)
#endif

to include "remote debugging" by using "sprintf()" (formatted print). It is a (working) first attempt with limitations. Suggestions for improvement are more than welcome. The debug information is sent with V_TEXT and needs to be handled by the controller or a "logging node" (I will publish one soon)

// Helper for Debug:  1 = Serial debug output ; 2 = V_TEXT remote output ; else no debug
// Use Formats described in fprint() : http://www.cplusplus.com/reference/cstdio/printf/  
// Example: 	Printf("Temp %2d Hum %2d\n", temperature, humidity);
// warning: max print size < 24 ; float = NOT supported in Arduino, you need to convert it yourself, ie. dtostrf(Temperature, 5, 2, tempBuf)
#define _DEBUG 2												// 0 = no output ; 1 = Serial debug output ; 2 = V_TEXT remote output 
#if _DEBUG == 1													// Serial output
	char printBuf[24] ;											// need temporary buffer
	#define Printf(...) { sprintf(printBuf, __VA_ARGS__) ; Serial.print(printBuf);}	// macro to substitute Printf()
#elif _DEBUG == 2												// if remote debug you need to define a child and present it to the controller
	#define DEBUG_CHILD_ID 10									// Child id of V_TEXT
	MyMessage debugMsg(DEBUG_CHILD_ID, V_TEXT);					// get the debug message ready
	char printBuf[24] ;											// need temporary buffer
	#define Printf(...) { sprintf(printBuf, __VA_ARGS__) ; send(debugMsg.set(printBuf)); }	// macro to substitute Printf()						
#else															// No debug wanted
	#define Printf(...)										
#endif

[sundberg84]

@AWI - Woaw! Great idea Awi!
Looks awesome - keep it up!

[Martin Tellblom]

Very nice... love to have this

[karl261]

@AWI This sounds extremely cool. I will try it asap! Thanks for sharing!