Saturday, December 22, 2018
Sunday, October 21, 2018
Simple Home Automation Using Bluetooth Module
Simple Home Automation Using Bluetooth, Android and Arduino
Take control of your home in your smart-phone with the simplest ever home automation device.
String voice;
#define relay1 2 //Connect relay1 to pin 2
#define relay2 3 //Connect relay2 to pin 3
#define relay3 7 //Connect relay1 to pin 2
#define relay4 8 //Connect relay2 to pin 3
void setup()
{
Serial.begin(9600); //Set rate for communicating with phone
pinMode(relay1, OUTPUT); //Set relay1 as an output
pinMode(relay2, OUTPUT);
pinMode(relay3, OUTPUT); //Set relay2 as an output
pinMode(relay4, OUTPUT);
digitalWrite(relay1, LOW); //Switch relay1 off
digitalWrite(relay2, LOW); //Swtich relay2 off
digitalWrite(relay3, LOW); //Switch relay1 off
digitalWrite(relay4, LOW); //Swtich relay2 off
}
void loop()
{
while(Serial.available()) //Check if there are available bytes to read
{
delay(10); //Delay to make it stable
char c = Serial.read(); //Conduct a serial read
if (c == '#'){
break; //Stop the loop once # is detected after a word
}
voice += c; //Means voice = voice + c
}
if (voice.length() >0)
{
Serial.println(voice);
if(voice == "*switch on"){
switchon();
}
else if(voice == "*switch off"){
switchoff();
}
else if(voice == "*bulb1 on"){
digitalWrite(relay1, LOW);
}
else if(voice == "*bulb1 off"){
digitalWrite(relay1, HIGH);
}
else if(voice == "*bulb2 on"){
digitalWrite(relay2, LOW);
}
else if(voice == "*bulb2 off"){
digitalWrite(relay2, HIGH);
}
else if(voice == "*fan1 on"){
digitalWrite(relay3, LOW);
}
else if(voice == "*fan1 off"){
digitalWrite(relay3, HIGH);
}
else if(voice == "*fan2 on"){
digitalWrite(relay4, LOW);
}
else if(voice == "*fan2 off"){
digitalWrite(relay4, HIGH);
}
voice="";
}
}
void switchon() //Function for turning on relays
{
digitalWrite(relay1, LOW);
digitalWrite(relay2, LOW);
digitalWrite(relay3, LOW);
digitalWrite(relay4, LOW);
}
void switchoff() //Function for turning on relays
{
digitalWrite(relay1, HIGH);
digitalWrite(relay2, HIGH);
digitalWrite(relay3, HIGH);
digitalWrite(relay4, HIGH);
}
MOBILE APP:-
If you don't know how to make android application then click the link below.
https://www.youtube.com/watch?v=dWKam0eekhU&t=1s
Thursday, October 11, 2018
Tuesday, September 25, 2018
Liquid Filling Machine Using Arduino Flow Rate Sensor
Liquid Filling Machine Using Arduino Flow Rate Sensor
CODING OF THIS PROJECT:-
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Keypad.h>
#define Password_Length 4
int signalPin = 12;
char Data[Password_Length];
char Master[Password_Length];
byte data_count = 0, master_count = 0;
bool Pass_is_good;
int customKey;
int sum=0;
const byte ROWS = 4;
const byte COLS = 4;
char hexaKeys[ROWS][COLS] = {
{'1', '2', '3', 'A'},
{'4', '5', '6', 'B'},
{'7', '8', '9', 'C'},
{'*', '0', '#', 'D'}
};
byte rowPins[ROWS] = {9, 8, 7, 6};
byte colPins[COLS] = {5, 4, 3, 1};
Keypad customKeypad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
byte statusLed = 13;
byte sensorInterrupt = 0; // 0 = digital pin 2
byte sensorPin = 2;
// The hall-effect flow sensor outputs approximately 4.5 pulses per second per
// litre/minute of flow.
float calibrationFactor = 1;
volatile byte pulseCount;
float flowRate;
unsigned int flowMilliLitres;
unsigned long totalMilliLitres;
unsigned long oldTime;
LiquidCrystal_I2C lcd(0x3F, 16, 2);
void setup()
{
lcd.begin();
lcd.backlight();
pinMode(signalPin, OUTPUT);
// Initialize a serial connection for reporting values to the host
Serial.begin(9600);
// Set up the status LED line as an output
pinMode(statusLed, OUTPUT);
digitalWrite(statusLed, HIGH); // We have an active-low LED attached
pinMode(sensorPin, INPUT);
digitalWrite(sensorPin, HIGH);
pulseCount = 0;
flowRate = 0.0;
flowMilliLitres = 0;
totalMilliLitres = 0;
oldTime = 0;
// The Hall-effect sensor is connected to pin 2 which uses interrupt 0.
// Configured to trigger on a FALLING state change (transition from HIGH
// state to LOW state)
attachInterrupt(sensorInterrupt, pulseCounter, FALLING);
}
/**
* Main program loop
*/
void loop()
{
lcd.setCursor(0,0);
lcd.print("Entr Amont in ml");
customKey = customKeypad.getKey();
if (customKey){
Data[data_count]=customKey-48;
lcd.setCursor(data_count,1);
lcd.print(Data[data_count]);
sum=sum+Data[data_count];
data_count++;
}
if( data_count==3)
{
digitalWrite(signalPin, HIGH);
delay(990*sum);
sum =sum*100;
lcd.setCursor(0,1);
lcd.print(sum);
digitalWrite(signalPin, LOW);
clearData();
}
if((millis() - oldTime) > 1000) // Only process counters once per second
{
detachInterrupt(sensorInterrupt);
flowRate = ((1000.0 / (millis() - oldTime)) * pulseCount) / calibrationFactor;
oldTime = millis();
flowMilliLitres = (flowRate / 60) * 1000;
// Add the millilitres passed in this second to the cumulative total
totalMilliLitres += flowMilliLitres;
unsigned int frac;
// Print the flow rate for this second in litres / minute
Serial.print("Flow rate: ");
Serial.print(int(flowRate)); // Print the integer part of the variable
Serial.print("L/min");
Serial.print("\t"); // Print tab space
// Print the cumulative total of litres flowed since starting
Serial.print("Liquid Quantity: ");
Serial.print(totalMilliLitres);
Serial.println("mL");
Serial.print("\t"); // Print tab space
Serial.print(totalMilliLitres/1000);
Serial.print("L");
// Reset the pulse counter so we can start incrementing again
pulseCount = 0;
// Enable the interrupt again now that we've finished sending output
attachInterrupt(sensorInterrupt, pulseCounter, FALLING);
}
if(sum < totalMilliLitres ){
digitalWrite(signalPin, LOW);
lcd.clear();
lcd.setCursor(0,1);
lcd.print ("In=");
lcd.setCursor(3,1);
lcd.print(sum);
lcd.setCursor(0,0);
lcd.print ("Amount Delivered");
lcd.setCursor(6,1);
lcd.print (",Out=");
lcd.setCursor(11,1);
lcd.print(sum,DEC); // print the Flow Rate
lcd.setCursor(14,1);
lcd.print ("ml");
delay(60000);
lcd.clear();
clearData();
}
}
void pulseCounter()
{
// Increment the pulse counter
pulseCount++;
}
void clearData(){
while(data_count !=0){
Data[data_count--] = 0;
}
return;
}
Friday, September 21, 2018
PCB Making Tutorial
Proteus is very user friendly software for simulation and PCB designing as well. Consider following points In ISIS while placing a component, make sure your components have PCB packages (Shown in PCB preview), otherwise you have to add it manually. After building you circuit in ISIS, to to Tools Netlist to ARES In ARES, first draw the border of PCB. Place the components manually or you can use ‘Auto placer’, Tools Auto Placer Now wire all the components manually, by following connection guiding lines or you can use ‘Auto router’, Tools Auto router After placement and routing, you PCB is ready, now you can visualize you PCB using 3D visualizer, which is really a great feature of proteus. You can export your design in PDF to take printout for actual PCB manufacturing from Output Export graphics Export PDF file facebook page link https://www.facebook.com/projectnprod...
Volt Amp Meter Circuit
Home Automation Circuit
Home automation on the other hand involves automating the household environment. This is possible because of the smartphones and internet that we are widely using. Home automation can be again divided in to just controlling the appliances using a smartphone from a remote location and another type filled with sensors and actuators which controls the lighting, temperature, door locks, electronic gadgets, electrical appliances etc. using a “Smart” system.
In this project, we will design a simple home automation project using simple components using which different electrical appliances can switched on or off. The project is based on Arduino and we have used Arduino UNO for the project.
Thursday, September 20, 2018
Variable Power Supply
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