Merge pull request prathimacode-hub#238 from DragonUncaged/tempcontro…

…lfan

Automatic Fan Speed Control (done Changes)

Minor Scripts/Arduino/Automatic Fan Speed Control/Automatic Fan.ino

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+#include <LiquidCrystal.h>
+LiquidCrystal lcd(12,11,8,7,6,5);
+int tempPin = A0;   // Output pin LM35
+int fan = 10;       // pin 
+int led = 6;        // pin LED 
+int temp;
+int tempMin = 30;   
+int tempMax = 60;  
+int fanSpeed;
+int fanLCD;
+int stop = 2;		// pin Interrupt 
+
+void setup() {
+  Serial.begin(9600);
+  pinMode(fan, OUTPUT);
+  pinMode(led, OUTPUT);
+  pinMode(tempPin, INPUT);
+  lcd.begin(16,2);  
+
+  pinMode(stop, INPUT_PULLUP);
+  attachInterrupt (digitalPinToInterrupt (stop), stopfan, HIGH); //digitalPinToInterrupt (stop), HIGH
+}
+
+void loop() {  
+   temp = readTemp();     	
+   if(temp  < tempMin) { 	 
+      fanSpeed = 0; 		
+      digitalWrite(fan, LOW); 
+   } 
+   if((temp  >= tempMin) && (temp <= tempMax)) { 		// if temperature is higher than minimum temp 
+      fanSpeed = map(temp, tempMin, tempMax, 32, 255);	// the actual speed of fan 
+      fanLCD = map(temp, tempMin, tempMax, 0, 102); 	// speed of fan to display on LCD 
+      analogWrite(fan, fanSpeed); 						// spin the fan at the fanSpeed speed 
+   } 
+   if(temp  > tempMax) {        
+     digitalWrite(led, HIGH); 	
+   } else {                   
+     digitalWrite(led, LOW); 
+   }
+
+   lcd.print("TEMP: ");
+   lcd.print(temp);      //Celsius
+   lcd.print("C ");
+   lcd.setCursor(0,1);   
+   lcd.print("FANS: ");
+   lcd.print(fanLCD);    
+   lcd.print("%");
+   delay(200);
+   lcd.clear();   
+
+
+}
+
+int readTemp() {  Celsius
+  temp = analogRead(tempPin);
+  return temp * 0.48828125;
+}
+
+void stopfan () {			
+  lcd.clear();
+  digitalWrite (fan, LOW);
+  delayMicroseconds(90000000000000000000000);
+  //lcd display
+  Serial.println("DragonUncaged");
+  //initial display for the temperature
+  lcd.print("TEMP: --");
+  lcd.setCursor(0,1); 
+  lcd.print("FANS: 0%");
+
+}
+

Minor Scripts/Arduino/Automatic Fan Speed Control/README.md

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+# Automatic Fan
+## AIM:
+Temperature Controlled Fan Simulation In Tinker Cad
+
+## Purpose:
+To Start the Fan as the Temperature Is Ceratain Temperature is Reached. Also Increse the Fan Speed as the Temperature rises.
+
+## Short Description:
+**Requirements:**
+- Arduino UNO
+- LCD 16X2
+- Temperature Sensor (TMP36)
+- Potentiometer (50 Kohm)
+- Fan
+- Push Button
+(Tinkercad can also be used)
+
+## Workflow:
+- First we initialise TMP36 PIN, Fan Pin.
+- We initiate a Conditional statement For the Fan to Start as temperature increases.
+- A Resistor (1 Kohm) is added For the LCD and Resistor (10 Kohm) to the push button.
+
+In this circuit we are maintaing the room temperature between 30-45 C using motor. If the temperature is lower than 30 C then Fan will turn on. Once the temperature gets Low it will turn off User can set the range of room temperature by changing in the code.
+
+## Setup instructions:
+- Assemble the circuit as shown below.
+- Open Tinker Cad on any browser and make the circuit as shown here.
+- Then paste the code in code section.
+- Open the Serial Monitor.
+- Start Simulation.
+- Upload the code provided [here]()
+- Run to see the project in action!
+------------
+## Output:
+[Simulation Video](./Images/preview.mp4)
+![Tinkercad Circuit](./Images/preview1.jpg)
+------------
+
+## Author:
+[DragonUncaged](https://github.com/dragonuncaged)