Furnizorul de internet, in cazul meu RCS&RDS, are un servicu de alocare a unui nume contului de acasa. Eu am ales numele de tehniq.go.ro:
Alt pas care l-am facut este acela de a deschde un port, ales de mine ca 8081:
Am schimbat si in sketch-ul prezentat in articolul precedent portul:
La tastarea pentru prima data a adresei tehniq.go.ro:8081 pe ecranul calculatorului, a tabletei sau telefonului mobil vom avea urmatoarea imagine:
Daca se apasa butonul virtual Turn on LED pe ecran va aparea situatia:
si led-ul verde se va aprinde.
Daca se apasa butonul virtual Turn off LED pe ecran va aparea situatia:
iar led-ul verde se va stinge.
21.02.2015
Am mai modificat sketch-ul in functie de observatiile celor care au testat pagina si am afisata temperatura microcontrolului ATmega328 pe pagina, am afisat numarul de aprinderi ale led-ului, am eliminat problemea cresterii nereale prin comanda de "refresh" sau apasare repeatata pe "on", se stocheaza in memoria EEPROM a microcontrolerului numarul de aprinderi si starea anteriora, pentru a nu se sterge datele la un restart sau pana de curent...
- led verde aprins:
- led verde stins:
Am facut, in sfarsit, si un filmulet numit LED controlat prin internet in care se vede modul de control si ce cum reactioneaza montajul prin comanda de pe un telefon conectat la internet:
Sketch-ul folosit de mine, ajuns la versiunea 3f3, este:
/*
Created by Rui Santos
Visit: http://randomnerdtutorials.com for more arduino projects
Modified by Nicu Florica aka niq_ro
visit http://nicuflorica.blogspot.ro/
or http://arduinotehniq.blogspot.com
or http://www.tehnic.go.ro
Arduino with Ethernet Shield
*/
#include <SPI.h>
#include <Ethernet.h>
int led = 9;
int pos = 0;
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 192, 168, 2, 178 }; // ip in lan (that's what you need to use in your browser. ("192.168.1.178")
byte gateway[] = { 192, 168, 2, 1 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(8081); //server port
String readString;
int clic; // number of mouse clicks
int clic1; // number of recovered mouse clicks
byte stare; // 0 is OFF, 1 is ON
byte stare0; // before state
int a = 0; // decinal value
int b = 0; // unitar value
int a1 = 0; // recovered decimal value
int b1 = 0; // recovered unitar value
// http://tronixstuff.com/2011/03/16/tutorial-your-arduinos-inbuilt-eeprom/
#include <EEPROM.h>
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
pinMode(led, OUTPUT);
digitalWrite(led, LOW);
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip, gateway, subnet);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
a1 = EEPROM.read(100);
b1 = EEPROM.read(101);
// recover number of mouse click
clic = a1*256 + b1;
stare0 = EEPROM.read(102);
}
void loop() {
// 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>");
// add a meta refresh tag, so the browser pulls again every 10 seconds:
client.println("<meta http-equiv=\"refresh\" content=\"10\">");
client.println("<HEAD>");
client.println("<meta name='apple-mobile-web-app-capable' content='yes' />");
client.println("<meta name='apple-mobile-web-app-status-bar-style' content='black-translucent' />");
client.println("<link rel='stylesheet' type='text/css' href='http://randomnerdtutorials.com/ethernetcss.css' />");
client.println("<TITLE>Arduino with Ethernet Shield</TITLE>");
client.println("</HEAD>");
client.println("<BODY>");
client.println("<H2>tehniq.go.ro by niq_ro</H1>");
client.println("<hr />");
// client.println("<br />");
client.println("<H1>Arduino with Ethernet Shield</H2>");
client.println("<br />");
client.println("<a href=\"/?button1on\"\">Turn On LED</a>");
client.println("<a href=\"/?button1off\"\">Turn Off LED</a><br />");
client.println("<br />");
// client.println("<br />");
client.println("<H2>");
if (readString.indexOf("?button1on") >0){
stare = 1;
// client.print("<p>LED is ON</p>");
// digitalWrite(led, HIGH);
// clic = clic + 1;
}
if (readString.indexOf("?button1off") >0){
stare = 0;
//client.print("<p>LED is OFF</p>");
//digitalWrite(led, LOW);
// clic = clic + 1;
}
// read old state:
stare0 == EEPROM.read(102);
if (stare == 1) {
client.print("<p>LED is ON</p>");
digitalWrite(led, HIGH);
if (stare0 == 0) {clic = clic + 1; }
}
if (stare == 0) {
client.print("<p>LED is OFF</p>");
digitalWrite(led, LOW);
// if (stare0 == 1) {clic = clic + 1; }
}
//if (stare0 =! stare) {clic = clic + 1; }
stare0 = stare;
// write & read data in/from internal EEPROM
// calculate the unitar and zecinal units
a = clic/256;
b = clic - a*256;
// write in internal eeprom
EEPROM.write(100,a);
EEPROM.write(101,b);
// read from internal eeprom
a1 = EEPROM.read(100);
b1 = EEPROM.read(101);
// recover number of mouse click
clic1 = a1*256 + b1;
// write state in internal eeprom
EEPROM.write(102,stare0);
client.print("<p>LED was on ");
client.print(clic1);
client.print(" times from 13:33 (21.febr.2015)<p>");
client.print("<p>Internal temperature of ATmega328P from Arduino board is ");
client.print(readTemp()/10000);
client.print("<sup>o</sup>");
client.print("C<p>");
// client.println("<br />");
// client.println("<br />");
client.println("<H4>");
client.println("<p>Created by Rui Santos. Visit <a href=http://randomnerdtutorials.com target=blank>http://randomnerdtutorials.com</a> for more projects!</p>");
// client.println("<br />");
client.println("<p>Tested by Nicu Florica aka niq_ro. Visit <a href=http://www.tehnic.go.ro target=blank>http://www.tehnic.go.ro</a> for more projects!</p>");
client.println("<br />");
client.println("<H5>");
client.println("version. 3e2 / 21.02.2015<p>");
client.println("</BODY>");
client.println("</HTML>");
// readString="";
delay(1);
//stopping client
client.stop();
//clearing string for next read
readString="";
}
}
}
}
}
// https://code.google.com/p/tinkerit/wiki/SecretThermometer
long readTemp() {
long result;
// Read temperature sensor against 1.1V reference
ADMUX = _BV(REFS1) | _BV(REFS0) | _BV(MUX3);
delay(2); // Wait for Vref to settle
ADCSRA |= _BV(ADSC); // Convert
while (bit_is_set(ADCSRA,ADSC));
result = ADCL;
result |= ADCH<<8;
result = (result - 125) * 1075;
return result;
}
22.02.2015
Am realizat un filmulet in limba engleza, numit control a LED from Anywhere in the World in care se vede ca am pus si un senzor de umiditate si temperatura de tip DHT11:
Cu ajutorul lui Cosmin, un coleg de servici, am pus si partea de parola, dupa cum se vede in filmuletul LED controlat prin internet (2)