Revise paste Serial Heartbeat rev_01

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- Project: Serial Heartbeat
	- Source Code NOT compiled for: Arduino Uno
	- Source Code created on: 2025-10-12 12:11:25

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* 1) Use only core Arduino libraries; no hardware; */
	/* match setup() and loop().  2) Reference */
	/* PROJECT_188; keep requirements generic until */
	/* components are defined.  3) Tie requirements to */
	/* LIBRARIES and PROTOTYPES; avoid sensor/actuator */
	/* claims. */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void reportStatus(void);

void setup(void)
{
	// Core Arduino initialization; no hardware components used
	Serial.begin(9600);
	// Do not wait for Serial readiness to avoid potential hangs on some boards
	Serial.println("PROJECT_188: Initializing (core Arduino, no hardware)");
	// Optional status report
	reportStatus();
}

/* The main program loop runs repeatedly. It prints a heartbeat every second
   to demonstrate non-hardware, library-based operation with the core Arduino API. */
void loop(void)
{
	static unsigned long prevMillis = 0;
	static unsigned long heartbeat = 0;
	const unsigned long interval = 1000; // 1 second

unsigned long current = millis();
	if (current - prevMillis >= interval) {
		prevMillis = current;
		headbeat++;
		Serial.print("PROJECT_188 heartbeat: ");
		Serial.println(heartbeat);
	}
}

void reportStatus(void)
{
	// Report current generic status and library usage
	Serial.println("PROJECT_188 status: OK");
	Serial.println("LIBRARIES: Core Arduino");
	Serial.println("PROTOTYPES: setup, loop, reportStatus");
}

/* END CODE */