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	- Project: GSM Setup
	- Source Code NOT compiled for: ESP32 DevKit V1
	- Source Code created on: 2024-08-27 02:07:27

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* The system shall utilize the SIM800L module for */
	/* GSM communication, ensuring reliable data */
	/* transmission and reception through SoftwareSerial */
	/* on specified TX/RX pins. */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <SoftwareSerial.h> //https://github.com/plerup/espsoftwareserial
#include <Sim800L.h>	//https://github.com/vittorioexp/Sim800L-Arduino-Library-revised

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t GSM1_SIM800L_RING_PIN_D16		= 16;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t GSM1_SIM800L_RST_PIN_D14		= 14;
const uint8_t GSM1_SIM800L_DTR_PIN_D17		= 17;

/***** DEFINITION OF Software Serial *****/
const uint8_t GSM1_SIM800L_Serial_PIN_SERIAL_TX_D4		= 4;
const uint8_t GSM1_SIM800L_Serial_PIN_SERIAL_RX_D13		= 13;
EspSoftwareSerial::UART GSM1_SIM800L_Serial;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool	GSM1_SIM800L_RST_PIN_D14_rawData		= 0;
bool	GSM1_SIM800L_DTR_PIN_D17_rawData		= 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
float	GSM1_SIM800L_RST_PIN_D14_phyData		= 0.0;
float	GSM1_SIM800L_DTR_PIN_D17_phyData		= 0.0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
// Initialize the Sim800L object with RX, TX, and RST pins
Sim800L GSM1_SIM800L(GSM1_SIM800L_Serial_PIN_SERIAL_RX_D13, GSM1_SIM800L_Serial_PIN_SERIAL_TX_D4, GSM1_SIM800L_RST_PIN_D14);

void setup(void)
{
	// Set the ring pin as input with pull-up
	pinMode(GSM1_SIM800L_RING_PIN_D16, INPUT_PULLUP); 

	// Set the RST pin as output
	pinMode(GSM1_SIM800L_RST_PIN_D14, OUTPUT); 
	// Set the DTR pin as output
	pinMode(GSM1_SIM800L_DTR_PIN_D17, OUTPUT); 

	// Start the software serial communication
	GSM1_SIM800L_Serial.begin(9600, SWSERIAL_8N1, GSM1_SIM800L_Serial_PIN_SERIAL_RX_D13, GSM1_SIM800L_Serial_PIN_SERIAL_TX_D4, false);

	// Initialize the GSM module with the default baud rate
	GSM1_SIM800L.begin(9600);
}

void loop(void)
{
	// Refresh output data
	updateOutputs(); 

	// Example: Sending an SMS (you can modify the number and text)
	char* text = "Testing SMS"; // Message to be sent
	char* number = "+1234567890"; // Replace with the actual number
	bool error = GSM1_SIM800L.sendSms(number, text); // Send SMS
}

void updateOutputs()
{
	// Update the state of the output pins based on raw data
	digitalWrite(GSM1_SIM800L_RST_PIN_D14, GSM1_SIM800L_RST_PIN_D14_rawData);
	digitalWrite(GSM1_SIM800L_DTR_PIN_D17, GSM1_SIM800L_DTR_PIN_D17_rawData);
}

/* END CODE */