LusoRobótica - Robótica em Português
Electrónica => Electrónica Geral => Tópico iniciado por: r16 em 27 de Dezembro de 2012, 00:29
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Olá Pessoal.
Pesquisando um pouco na net encontrei este projecto:
---------------------------------CÓDIGO ARDUINO-------------------------------------
/*
Web Server
A simple web server that switches LED's on and off, based on input from an
Android App Inventor application
Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13
* LED outputs attached to pins 5 and 6
created 13 Oct 2010
by Rogier van den Berg / rogiervandenberg.nl
*/
#include <SPI.h>
#include <Ethernet.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192,168,0, 201 };
//Settings for the two LED's
int ledPin = 5;
int ledState = LOW;
int powerLedPin = 6;
int powerLedState = LOW;
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
Server server(80);
void setup()
{
//Set the LED pins as output
pinMode(ledPin, OUTPUT);
pinMode(powerLedPin, OUTPUT);
//For debugging, set the Serial Output
Serial.begin(9600);
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
//Turn one of the LED's on, to know it is ready to go!
digitalWrite(powerLedPin, HIGH);
}
void loop()
{
//Make sure requests are taken care of
handleIncomingInstruction();
//Make sure the power led stays on, when nothing happens.
if(powerLedState == LOW)
switchPowerLed();
}
void handleIncomingInstruction()
{
// listen for incoming clients
Client client = server.available();
if (client) {
// an http request ends with a blank line
boolean newLine = true;
String line = "";
while (client.connected() && client.available()) {
char c = client.read();
//Serial.print(c);
switchPowerLed();
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && newLine) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();
}
if (c == '\n') {
// you're starting a new line
newLine = true;
evaluateLine(line);
line = "";
}
else if (c != '\r') {
// you've gotten a character on the current line
newLine = false;
line += c;
}
}
evaluateLine(line);
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
}
}
void evaluateLine(String line)
{
if (line.startsWith("tag", 0)) {
String instruction = line.substring(4, line.length());
Serial.println(instruction);
if (instruction == "TestOpdracht")
switchLed();
}
}
void switchLed()
{
// if the LED is off turn it on and vice-versa:
if (ledState == LOW)
ledState = HIGH;
else
ledState = LOW;
// set the LED with the ledState of the variable:
digitalWrite(ledPin, ledState);
Serial.println("We switchen de LED!");
}
void switchPowerLed()
{
// if the LED is off turn it on and vice-versa:
if (powerLedState == LOW)
powerLedState = HIGH;
else
powerLedState = LOW;
// set the LED with the ledState of the variable:
digitalWrite(powerLedPin, powerLedState);
}
------------------------------------------------ FIM ------------------------------------------
Código para app inventor para o abrir basta no app inventor fazer:
My projectos-->More Actions-->Upload Source
https://docs.google.com/open?id=13G80qipX40PaMmMDtX2ft6X5kSFTltopZMag8SrWX-ezovhWmcegBli5Xs0L (https://docs.google.com/open?id=13G80qipX40PaMmMDtX2ft6X5kSFTltopZMag8SrWX-ezovhWmcegBli5Xs0L)
---------------------- VIDEO DE DEMONSTRAÇÃO----------------------------------
App Inventor for Android Arduino Switch (http://www.youtube.com/watch?v=r7y0IpGhk_w#ws)
Ora bem o que este projecto faz é basicamente atraves de um Android com um programa apenas com um botao faz ligar e desligar o led.
Agora eu gostaria da vossa ajuda para o seguinte:
Eu pretendo que ao ligar o Led esse botão fique com a cor VERDE e ao desligar o led fique com a cor Vermelha.
E pretendia também o seguinte: se o led tiver acesso e o botão verde, eu gostaria que ao desligar o equipamento android e voltar a ligar o programa, que ele veja o estado do led.. se ele tiver acesso aparece então a cor verde se tiver desligado, aparece vermelho.
Alguem me pode enviar o projecto já modificado com essa funcoes?
Ficaria muito grato.
-
Olá já fiz alguns progressos.
Agora peço ajuda de novo aqui no codigo:
/*
Web Server
A simple web server that switches LED's on and off, based on input from an
Android App Inventor application
Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13
* LED outputs attached to pins 5 and 6
created 13 Oct 2010
by Rogier van den Berg / rogiervandenberg.nl
*/
#include <SPI.h>
#include <Ethernet.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192,168,0, 201 };
//Settings for the two LED's
int ledPin = 5;
int ledState = LOW;
int powerLedPin = 6;
int powerLedState = LOW;
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
Server server(80);
void setup()
{
//Set the LED pins as output
pinMode(ledPin, OUTPUT);
pinMode(powerLedPin, OUTPUT);
//For debugging, set the Serial Output
Serial.begin(9600);
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
//Turn one of the LED's on, to know it is ready to go!
digitalWrite(powerLedPin, HIGH);
}
void loop()
{
//Make sure requests are taken care of
handleIncomingInstruction();
//Make sure the power led stays on, when nothing happens.
if(powerLedState == LOW)
switchPowerLed();
}
void handleIncomingInstruction()
{
// listen for incoming clients
Client client = server.available();
if (client) {
// an http request ends with a blank line
boolean newLine = true;
String line = "";
while (client.connected() && client.available()) {
char c = client.read();
//Serial.print(c);
switchPowerLed();
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && newLine) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();
}
if (c == '\n') {
// you're starting a new line
newLine = true;
evaluateLine(line);
line = "";
}
else if (c != '\r') {
// you've gotten a character on the current line
newLine = false;
line += c;
}
}
evaluateLine(line);
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
}
}
void evaluateLine(String line)
{
if (line.startsWith("tag", 0)) {
String instruction = line.substring(4, line.length());
Serial.println(instruction);
if (instruction == "TestOpdracht")
switchLed();
}
}
void switchLed()
{
// if the LED is off turn it on and vice-versa:
if (ledState == LOW)
ledState = HIGH;
else
ledState = LOW;
// set the LED with the ledState of the variable:
digitalWrite(ledPin, ledState);
Serial.println("We switchen de LED!");
}
void switchPowerLed()
{
// if the LED is off turn it on and vice-versa:
if (powerLedState == LOW)
powerLedState = HIGH;
else
powerLedState = LOW;
// set the LED with the ledState of the variable:
digitalWrite(powerLedPin, powerLedState);
}
dentro do void switchLed()
eu queria ter um :
client.println("<font color='green' size='5'>ON");
para quando tivesse HIGH
e um
client.println("<font color='green' size='5'>OFF");
para quando tivesse LOW.
Alguem me pode ajudar nessa modificacao no codigo, ja tentei mas nao tive sucesso.
Obrigado
-
Não basta fazeres algo deste género?
void switchLed()
{
// if the LED is off turn it on and vice-versa:
if (ledState == LOW)
{
ledState = HIGH;
client.println("<font color='green' size='5'>ON"); }
else
{
ledState = LOW;
client.println("<font color='green' size='5'>ON"); }
}
// set the LED with the ledState of the variable:
digitalWrite(ledPin, ledState);
Serial.println("We switchen de LED!");
}
Depois tens é de definir o client como variável global, ou passar como parametro para a função.
troca Client client = server.available();
por client = server.available();
E coloca fora da função:
Client client;
Não será a solução mais bonita, mas acho que já deveria funcionar... :P
-
Ok tenta isto então:
/*
Web Server
A simple web server that switches LED's on and off, based on input from an
Android App Inventor application
Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13
* LED outputs attached to pins 5 and 6
created 13 Oct 2010
by Rogier van den Berg / rogiervandenberg.nl
*/
#include <SPI.h>
#include <Ethernet.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192,168,0, 201 };
//Settings for the two LED's
int ledPin = 5;
int ledState = LOW;
int powerLedPin = 6;
int powerLedState = LOW;
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);
void setup()
{
//Set the LED pins as output
pinMode(ledPin, OUTPUT);
pinMode(powerLedPin, OUTPUT);
//For debugging, set the Serial Output
Serial.begin(9600);
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
//Turn one of the LED's on, to know it is ready to go!
digitalWrite(powerLedPin, HIGH);
}
void loop()
{
//Make sure requests are taken care of
handleIncomingInstruction();
//Make sure the power led stays on, when nothing happens.
if(powerLedState == LOW)
switchPowerLed();
}
void handleIncomingInstruction()
{
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
// an http request ends with a blank line
boolean newLine = true;
String line = "";
while (client.connected() && client.available()) {
char c = client.read();
//Serial.print(c);
switchPowerLed();
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && newLine)
{
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();
client.println("<body>");
if (ledState == LOW)
{
client.println("<font color='green' size='5'>OFF");
}
else
{
client.println("<font color='green' size='5'>ON");
}
client.println("</body>");
}
if (c == '\n') {
// you're starting a new line
newLine = true;
evaluateLine(line);
line = "";
}
else if (c != '\r') {
// you've gotten a character on the current line
newLine = false;
line += c;
}
}
evaluateLine(line);
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
}
}
void evaluateLine(String line)
{
if (line.startsWith("tag", 0)) {
String instruction = line.substring(4, line.length());
Serial.println(instruction);
if (instruction == "TestOpdracht")
switchLed();
}
}
void switchLed()
{
// if the LED is off turn it on and vice-versa:
if (ledState == LOW)
ledState = HIGH;
else
ledState = LOW;
// set the LED with the ledState of the variable:
digitalWrite(ledPin, ledState);
Serial.println("We switchen de LED!");
}
void switchPowerLed()
{
// if the LED is off turn it on and vice-versa:
if (powerLedState == LOW)
powerLedState = HIGH;
else
powerLedState = LOW;
// set the LED with the ledState of the variable:
digitalWrite(powerLedPin, powerLedState);
}
-
obrigado tarquinio com algumas modificacoes consegui
#include <SPI.h>
#include <Ethernet.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 192, 168, 1, 75 }; // ip in lan
byte gateway[] = { 192, 168, 1, 254 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(6969);
//Settings for the two LED's
int ledPin = 5;
int ledState = LOW;
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
void setup()
{
//Set the LED pins as output
pinMode(ledPin, OUTPUT);
//For debugging, set the Serial Output
Serial.begin(9600);
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
//Turn one of the LED's on, to know it is ready to go!
}
void loop()
{
//Make sure requests are taken care of
handleIncomingInstruction();
//Make sure the power led stays on, when nothing happens.
}
void handleIncomingInstruction()
{
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
// an http request ends with a blank line
boolean newLine = true;
String line = "";
while (client.connected() && client.available()) {
char c = client.read();
//Serial.print(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && newLine) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();
client.println("<body>");
client.println("<hr />");
client.print("<font size='5'>LED status: ");
if (ledState == LOW)
{
client.println("<font color='green' size='5'>0");
}
else
{
client.println("<font color='green' size='5'>1");
}
// auto reload webpage every 5 second
client.println("<META HTTP-EQUIV=REFRESH CONTENT=5 URL=>");
client.println("</body>");
}
if (c == '\n') {
// you're starting a new line
newLine = true;
evaluateLine(line);
line = "";
}
else if (c != '\r') {
// you've gotten a character on the current line
newLine = false;
line += c;
}
}
evaluateLine(line);
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
}
}
void evaluateLine(String line)
{
if (line.startsWith("tag", 0)) {
String instruction = line.substring(4, line.length());
Serial.println(instruction);
if (instruction == "ligar")
ligar();
if (instruction == "desligar")
desligar();
}
}
void ligar()
{
// if the LED is off turn it on and vice-versa:
if (ledState == LOW)
ledState = HIGH;
else
ledState = LOW;
// set the LED with the ledState of the variable:
digitalWrite(ledPin, ledState);
}
void desligar()
{
// if the LED is off turn it on and vice-versa:
if (ledState == HIGH)
ledState = LOW;
else
ledState = HIGH;
// set the LED with the ledState of the variable:
digitalWrite(ledPin, ledState);
}
No entanto não tou a conseguir que o app inventor leia os seguintes valores:
if (ledState == LOW)
{
client.println("<font color='green' size='5'>0");
}
else
{
client.println("<font color='green' size='5'>1");
a minha estrutura esta assim:
http://postimage.org/image/l4m490qn7 (http://postimage.org/image/l4m490qn7)
ou seja o meu botao STATUS LED nao fica verde quando esta 1 nem vermelho quando esta zero.
no entanto quando eu acesso ao meu http://192.168.1.75:6969 (http://192.168.1.75:6969) aparece lá o estado 0 e 1
alguempode ajudar?
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Pois isso agora já deve ter a ver com a forma que a App está a ler os valores... Tens de ver exactamente o que é que é preciso ser enviado para a aplicação reconhecer os dados...
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Eu tenho a estrutura do programa assim
http://postimage.org/image/l4m490qn7 (http://postimage.org/image/l4m490qn7)