//[email protected] - 2024-07-29

#include <Wire.h>

int timedata = A0; // analog pin0 , a Potentiometer is connected with A0 pin of Arduino.
int timerawdata = 2000; // stores the value coming from the Potentiometer.
int settime = 1; // time duration in milliseconds (initial value)
int startb = 2;  // button to start the welding
int relay = 4;   // the output relay
int ReadyLed = 3; // when this LED is turned ON, it means you can start the welding
int Sflag = 0;   // stops the unnecessary repetition of code.
int powerLed1 = A1;
int powerLed2 = A2;
int powerLed3 = A3;
int powerLed4 = A4;
int powerLed5 = A5;
int power1 = 100;
int power2 = 200;
int power3 = 300;
int power4 = 400;
int power5 = 500;
int mode = 0;
int spotcount = 0; // counts the amount of spot welds
int forceddelay = 500; // forced delay between pulses (ms)


void setup(){
 	pinMode(startb, INPUT_PULLUP);
	pinMode(timedata, INPUT); // POTENTIOMETER CONNECTED
 	pinMode(relay, OUTPUT);
 	pinMode(ReadyLed, OUTPUT);
	Serial.begin(9600);
}


void loop(){

//Serial.println(mode);

  if ((timerawdata != analogRead(timedata)) || (settime == 0)){
    timerawdata = analogRead(timedata);
    settime = map(timerawdata, 0, 1023, 1, 1000); // 0.1 to 1000 milliseconds

		if (((settime >= 0)) && (settime <= 200)){
			mode = 1;
		}
		else if ((settime >= 200) && (settime <= 400)){
			mode = 2;
		}
		else if ((settime >= 400) && (settime <= 600)){
			mode = 3;
		}
		else if ((settime >= 600) && (settime <= 800)){
			mode = 4;
		}
		else if ((settime >= 800) && (settime <= 1000)){
			mode = 5;
		}
		else mode = 0;
		Serial.println(mode);
		Serial.println(settime);
  }


		if (mode == 1){
			settime = power1;
			digitalWrite(powerLed1, HIGH);
			digitalWrite(powerLed2, LOW);
			digitalWrite(powerLed3, LOW);
			digitalWrite(powerLed4, LOW);
			digitalWrite(powerLed5, LOW);
		}
		else if (mode == 2){
			settime = power2;
			digitalWrite(powerLed1, HIGH);
			digitalWrite(powerLed2, HIGH);
			digitalWrite(powerLed3, LOW);
			digitalWrite(powerLed4, LOW);
			digitalWrite(powerLed5, LOW);
		}
		else if (mode == 3){
			settime = power3;
			digitalWrite(powerLed1, HIGH);
			digitalWrite(powerLed2, HIGH);
			digitalWrite(powerLed3, HIGH);
			digitalWrite(powerLed4, LOW);
			digitalWrite(powerLed5, LOW);
		}
			else if (mode == 4){
			settime = power4;
			digitalWrite(powerLed1, HIGH);
			digitalWrite(powerLed2, HIGH);
			digitalWrite(powerLed3, HIGH);
			digitalWrite(powerLed4, HIGH);
			digitalWrite(powerLed5, LOW);
		}
			else if (mode == 5){
			settime = power5;
			digitalWrite(powerLed1, HIGH);
			digitalWrite(powerLed2, HIGH);
			digitalWrite(powerLed3, HIGH);
			digitalWrite(powerLed4, HIGH);
			digitalWrite(powerLed5, HIGH);
		}

  if (digitalRead(startb) == LOW){
    digitalWrite(ReadyLed, LOW);
	  digitalWrite(relay, HIGH);
	  delay(settime);
	  digitalWrite(relay, LOW);
	  digitalWrite(ReadyLed, HIGH);
		Serial.println(settime);
		delay(forceddelay);
	}
}