Project Description
Description:
This guide is just the tip of the ice berg to build a complete home automation project using Arduino. We will build a Ethernet controlled home automation to control 3 LED’s or switches in your room.
Hardware Required:
• Arduino Uno R3
• Ethernet shield w5100
• Led’s
• Relay
• Temperature Sensor LM-35
• Light Dependent Resistor (LDR)
Pins:
- LED’s : Digital Pin’s 4,5,6
- LM35 : Analog Pin 2
- Light Dependent Resistor : Analog Pin 3
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#include // FOR HTHE THERNET LIBRARY #include include // FOR SENDING IR COMMANDS IRsend irsend; // SEDNDING IR CODES // IR VALUES unsigned int AC_ON1[60]={8450,4100,600,1450,650,400,600,450,600,450,600,1500,600,400,650,400,600,450,600,450,600,450,600,450,600,400,650,400,600,450,600,450,600,450,600,400,650,400,650,1450,600,1500,600,400,650,1450,600,450,600,450,600,450,550,1500,600,1500,600,1500,600}; unsigned int AC_OFF1[60]={8450,4050,600,1500,600,450,600,450,600,400,650,1450,600,450,600,450,600,400,650,1450,600,1500,600,450,600,400,650,400,600,450,600,450,600,450,600,450,600,400,650,400,600,450,600,450,600,1500,600,400,650,1450,600,450,600,450,600,400,650,1450,600}; unsigned int chUp1[36]={500,200,200,250,200,550,250,350,250,500,250,200,250,200,250,200,200,250,150,600,200,550,250,350,250,700,200,250,200,550,250,200,200,250,200}; unsigned int chDw1[36]={500,200,200,200,250,550,250,350,250,500,250,250,150,250,200,250,200,200,250,200,200,550,250,350,250,700,250,200,250,500,250,200,250,350,250}; unsigned int Source1[67]={4550,4500,600,1650,650,1600,650,1600,650,500,600,500,650,500,600,550,600,500,600,1650,650,1600,650,1600,650,500,600,500,650,500,600,550,600,500,650,1600,650,500,600,500,650,500,600,500,650,500,600,500,600,550,600,550,600,1650,600,1650,600,1650,600,1650,650,1600,600,1650,650,1600,650}; // LED STUFF boolean a=0;// LED 1 STATUS boolean b=0;// LED 2 STATUS boolean c=0;// SWITCH CASE boolean d=0;// LED 3 STATUS float temp_val = 0; // TEMPERATUERE VALUE int ldr_val = 0; // LIGHT INTENSITY VALUE boolean reading = false; //ETHERNET // ETHERNET SETTINGS byte ip[] = { 192, 168, 1, 221 }; byte gateway[] = { 192, 168, 1, 1 }; byte subnet[] = { 255, 255, 255, 0 }; byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; EthernetServer server = EthernetServer(80); //port 80 // IR REMOTE STUFF void AC_ON() { irsend.sendRaw(AC_ON1,60,38); delay(20); } void AC_OFF() { irsend.sendRaw(AC_OFF1,60,38); delay(20); } void chUp() { for(int i = 0; i < 5; i++) { irsend.sendRaw(chUp1,36,38); delay(20); } } void chDw() { for(int i = 0; i < 10; i++) { irsend.sendRaw(chDw1,36,38); delay(20); } } void Source() { irsend.sendRaw(Source1,67,38); delay(20); Serial.print("Source changed "); } void Temp() { } void Ldr() { } void setup(){ Serial.begin(9600); pinMode(4,OUTPUT); //LED 1 pinMode(5,OUTPUT); //LED 2 pinMode(6,OUTPUT); //LED 3 analogReference(INTERNAL); // Setup the Reference Voltage as Internal Ethernet.begin(mac); Ethernet.begin(mac, ip, gateway, subnet); //for manual setup server.begin(); Serial.println(Ethernet.localIP()); } void loop(){ // listen for incoming clients, and process qequest. checkForClient(); } void checkForClient(){ EthernetClient client = server.available(); if (client) { // an http request ends with a blank line boolean currentLineIsBlank = true; boolean sentHeader = false; while (client.connected()) { if (client.available()) { if(!sentHeader){ // send a standard http response header client.println("HTTP/1.1 200 OK"); client.println("Content-Type: text/html"); client.println(); sentHeader = true; } char c = client.read(); if(reading && c == ' ') reading = false; if(c == '?') reading = true; //found the ?, begin reading the info if(reading){ Serial.print(c); switch (c) { // CONTROLLING THE AC case 'O': // -O Turn On AC AC_ON(); break; case 'F': // - F Turn Off AC AC_OFF(); break; case 'U': // - U Channel Up chUp(); break; case 'D': // - D Channel Down chDw(); break; // CONTROLLING THE LEDs case '1': // LED 1 ON if(a==0){ digitalWrite(4,HIGH); client.print("Light1 Turned On "); a=1;} break; case '2': // LED 1 OFF if(a==1){ digitalWrite(4,LOW); client.print("Light1 Turned Off "); a=0;} break; case '3': // LED 2 ON if(b==0){ digitalWrite(5,HIGH); client.print("Light2 Turned On "); b=1;} break; case '4': // LED 2 OFF if(b==1){ digitalWrite(5,LOW); client.print("Light2 Turned Off "); b=0;} break; case '5': // LED 3 ON if(d==0){ digitalWrite(6,HIGH); client.print("Light2 Turned On "); d=1;} break; case '6': // LED 3 OFF if(d==1){ digitalWrite(6,LOW); client.print("Light2 Turned Off "); d=0;} break; // STORE THE STATUS OF THE PINS case '7': // POST VALUE OF LED 1 client.print(a); break; case '8': // POST VALUE OF LED 2 client.print(b); break; case '9': // POST VALUE OF LED 3 client.print(d); break; case 'T': // -T Print the temperature { int sensor_val = analogRead(2); // Read the raw sensor value and store it in the variable temp_val = sensor_val * 0.11; // The calculated value client.println(temp_val); // print the temperature value to serial monitor } break; case 'L': // -L Light Intensity { ldr_val = analogRead(3);// Reads a 10-bit value corresponding to the voltage applied on analog input pin 3. client.println(ldr_val);// } break; } } if (c == '\n' && currentLineIsBlank) break; if (c == '\n') { currentLineIsBlank = true; }else if (c != '\r') { currentLineIsBlank = false; } } } delay(1); // give the web browser time to receive the data client.stop(); // close the connection: } } |
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