Ultrasonic LED Control rev_01

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    - Project: Ultrasonic LED Control
    - Source Code compiled for: ESP32 DevKit V1
    - Source Code created on: 2024-03-14 04:41:46

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* Connect two esp8266 in espnow prototype .each */
    /* esp8266 has its own ultrasonic sensor and led.if */
    /* distance in ultrasonic sensor is less than 10cm */
    /* then the led in another esp8266 has to glow */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <Ultrasonic.h> //https://github.com/ErickSimoes/Ultrasonic

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t HC_SR04_Echo_PIN_D14 = 14;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t Led_LED_PIN_D4 = 4;
const uint8_t HC_SR04_Trigger_PIN_D13 = 13;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool Led_LED_PIN_D4_rawData = 0;
bool HC_SR04_Trigger_PIN_D13_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
float Led_LED_PIN_D4_phyData = 0.0;
float HC_SR04_Trigger_PIN_D13_phyData = 0.0;

/****** DEFINITION OF LIBRARY CLASS INSTANCES*****/
Ultrasonic ultrasonic(HC_SR04_Trigger_PIN_D13, HC_SR04_Echo_PIN_D14);

void setup(void)
{
    // put your setup code here, to run once:
    pinMode(HC_SR04_Echo_PIN_D14, INPUT);

    pinMode(Led_LED_PIN_D4, OUTPUT);
    pinMode(HC_SR04_Trigger_PIN_D13, OUTPUT);

    Serial.begin(9600); // Initialize serial communication

}

void loop(void)
{
    // put your main code here, to run repeatedly:
    unsigned int distance = ultrasonic.read(); // Read the distance measured by the ultrasonic sensor

    if (distance < 10)
    {
        Led_LED_PIN_D4_rawData = 1; // Turn on the LED if distance is less than 10 cm
    }
    else
    {
        Led_LED_PIN_D4_rawData = 0; // Turn off the LED if distance is greater than or equal to 10 cm
    }

    updateOutputs(); // Refresh output data

    Serial.print("Distance: ");
    Serial.print(distance);
    Serial.println(" cm");

    delay(1000); // Wait for 1 second before taking the next measurement

}

void updateOutputs()
{
    digitalWrite(Led_LED_PIN_D4, Led_LED_PIN_D4_rawData);
    digitalWrite(HC_SR04_Trigger_PIN_D13, HC_SR04_Trigger_PIN_D13_rawData);
}