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sample_arduino_code.txt
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sample_arduino_code.txt
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#include <SPI.h>
#include <Ethernet.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 192, 168, 1, 201 }; // ip in lan
byte gateway[] = { 192, 168, 1, 1 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(80); //server port
String readString;
#include <OneWire.h>
#include <DallasTemperature.h>
/*-----( Declare Constants )-----*/
#define ONE_WIRE_BUS 2 /*-(Connect to Pin 2 )-*/
/*-----( Declare objects )-----*/
/* Set up a oneWire instance to communicate with any OneWire device*/
OneWire ourWire(ONE_WIRE_BUS);
/* Tell Dallas Temperature Library to use oneWire Library */
DallasTemperature sensors(&ourWire);
/*-----( Declare Variables )-----*/
//////////////////////
int photocellPin = 1; // the cell and 10K pulldown are connected to a1
int photocellReading; // the analog reading from the analog resistor divider
void setup(){
pinMode(5, OUTPUT); //pin selected to control
//start Ethernet
Ethernet.begin(mac, ip, gateway, gateway, subnet);
server.begin();
//enable serial data print
Serial.begin(9600);
sensors.begin();
}
void loop(){
readPhotocell();
float temperatureIndoor;
float temperatureOutdoor;
delay(10);
// Create a client connection
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available()) {
char c = client.read();
//read char by char HTTP request
if (readString.length() < 100) {
//store characters to string
readString += c;
//Serial.print(c);
}
//if HTTP request has ended
if (c == '\n') {
///////////////
/* Serial.println(readString); //print to serial monitor for debuging
client.println("HTTP/1.1 200 OK"); //send new page
client.println("Content-Type: text/html");
client.println();
client.println("<HTML>");
client.println("<HEAD>");
client.println("<TITLE>Arduino GET test page</TITLE>");
client.println("</HEAD>");
client.println("<BODY>");
client.println("<H1>Simple Arduino button</H1>");
client.println("<a href=\"/?on\">ON</a>");
client.println("<a href=\"/?off\">OFF</a>");
client.println("<a href=\"/?temp\">temp</a>");
client.println("</BODY>");
client.println("</HTML>");
delay(1);
*/
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: application/json;charset=utf-8");
client.println("Server: Arduino");
client.println("Connnection: close");
client.println();
sensors.requestTemperatures(); // Send the command to get temperatures
temperatureIndoor = (sensors.getTempCByIndex(0));
//temperatureOutdoor = (sensors.getTempFByIndex(0));
client.print("{");
client.print("\"temperature\":");
client.print(temperatureIndoor);
client.print(",");
//client.print("\"humidity\":");
//client.print(temperatureOutdoor);
//client.print("}");
//client.println();
//client.print(",");
//client.print("{");
client.print("\"lightval\":");
client.print(photocellReading);
client.print("}");
client.println();
//stopping client
client.stop();
///////////////////// control arduino pin
if(readString.indexOf("?on") >0)//checks for on
{
Serial.println(readString.indexOf("on"));
digitalWrite(5, HIGH); // set pin 5 high
Serial.println("Led On");
}
if(readString.indexOf("?off") >0)//checks for off
{
Serial.println(readString.indexOf("off"));
digitalWrite(5, LOW); // set pin 5 low
Serial.println("Led Off");
}
if(readString.indexOf("?temp") >0)//checks for off
{
Serial.println(readString.indexOf("temp"));
temperatureIndoor = (sensors.getTempCByIndex(0));
//digitalWrite(5, LOW); // set pin 5 low
Serial.println("temp sent");
}
if(readString.indexOf("?light") >0)//checks for off
{
Serial.println(readString.indexOf("light"));
//digitalWrite(5, LOW); // set pin 5 low
Serial.println("light sent");
}
//clearing string for next read
readString="";
//sensors.requestTemperatures(); // Send the command to get temperatures
//Serial.print("Device 1 (index 0) = ");
//Serial.print(sensors.getTempFByIndex(0));
//Serial.println(" Degrees F");
} ///c=n
} //client available
} //client connected
} //if client
} //loop
void readPhotocell(){
photocellReading = analogRead(photocellPin);
Serial.print("Analog reading = ");
Serial.print(photocellReading); // the raw analog reading
// We'll have a few threshholds, qualitatively determined
if (photocellReading < 10) {
Serial.println(" - Dark");
} else if (photocellReading < 200) {
Serial.println(" - Dim");
} else if (photocellReading < 500) {
Serial.println(" - Light");
} else if (photocellReading < 800) {
Serial.println(" - Bright");
} else {
Serial.println(" - Very bright");
}
}