Ola.. tenho um arduino mega

tentei termistores e potenciomentros em todas as portas analogicas e nao funciona..

Obs: segui tutoriais aqui do site e do site oficial e nao funcionar..

alguem sabe me dizer o que pode ser?????????????????

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conferi a voltagem q entra no analogic e esta oscilando

testei todos os exemplos e nada

Alguem pode ajudar me?

posta o codigo

na propria ide tem ex. como o read analog voltage tente fazer teste com esse caso nao funcione teste outras porta do seu arduino mudando no sketch caso nao funcione pode ser algum problema no seu atmega

vlw...Brigadu

#include <Ethernet.h>
#include <SPI.h>

////////////////////////////////////////////////////////////////////////
//CONFIGURE
////////////////////////////////////////////////////////////////////////

//IP manual settings
byte ip[] = { 192, 168, 1, 50 }; //Manual setup only
byte gateway[] = { 192, 168, 1, 254 }; //Manual setup only
byte subnet[] = { 255, 255, 255, 0 }; //Manual setup only
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
EthernetServer server = EthernetServer(80); //default html port 80

//The number of outputs going to be switched.
int outputQuantity = 8; //quantidde de pinos... de saida nao passar de10

//The lowest output pin we are starting from
int outputLowest = 2; //Comessa no pino 2 e vai ate o 9
////////////////////////////////////////////////////////////////////////

// Variable declaration
int outp = 0;
boolean printLastCommandOnce = false;
boolean printButtonMenuOnce = false;
boolean initialPrint = true;
String allOn ="";
String allOff ="";
boolean reading = false;
boolean readInput[10]; //Create a boolean array for the maximum ammount.

//Beginning of the program
void setup(){
Serial.begin(9600);

//Pins 10,11,12 & 13 are used by the ethernet shield
//Set pins as Outputs
for (int var = outputLowest; var < outputLowest + outputQuantity; var++) {
pinMode(var, OUTPUT);
}

//Setting up the IP address. Comment out the one you dont need.
//Ethernet.begin(mac); //for DHCP address. (Address will be printed to serial.)
Ethernet.begin(mac, ip, gateway, subnet); //for manual setup. (Address is the one configured above.)

server.begin();
Serial.println(Ethernet.localIP());
}

void loop(){

// listen for incoming clients, and process requests.
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("Connnection: close");
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<head>");

// add page title
client.println("<title>Ethernet Switching</title>");
client.println("<meta name=\"description\" content=\"Ethernet Switching\"/>");

// add a meta refresh tag, so the browser pulls again every 5 seconds:
client.println("<meta http-equiv=\"refresh\" content=\"10; url=/\">");

// add other browser configuration
client.println("<meta name=\"apple-mobile-web-app-capable\" content=\"yes\">");
client.println("<meta name=\"apple-mobile-web-app-status-bar-style\" content=\"default\">");
client.println("<meta name=\"viewport\" content=\"width=device-width, user-scalable=no\"/>");

//inserting the styles data, usually found in CSS files.
client.println("<style type=\"text/css\">");
client.println("");

//This will set how the page will look graphically
client.println("html { height:100%; }");

client.println(" body {");
client.println(" height: 100%;");
client.println(" margin: 0;");
client.println(" font-family: helvetica, sans-serif;");
client.println(" -webkit-text-size-adjust: none;");
client.println(" }");
client.println("");
client.println("body {");
client.println(" -webkit-background-size: 100% 21px;");
client.println(" background-color: #c5ccd3;");
client.println(" background-image:");
client.println(" -webkit-gradient(linear, left top, right top,");
client.println(" color-stop(.75, transparent),");
client.println(" color-stop(.75, rgba(255,255,255,.1)) );");
client.println(" -webkit-background-size: 7px;");
client.println(" }");
client.println("");
client.println(".view {");
client.println(" min-height: 100%;");
client.println(" overflow: auto;");
client.println(" }");
client.println("");
client.println(".header-wrapper {");
client.println(" height: 44px;");
client.println(" font-weight: bold;");
client.println(" text-shadow: rgba(0,0,0,0.7) 0 -1px 0;");
client.println(" border-top: solid 1px rgba(255,255,255,0.6);");
client.println(" border-bottom: solid 1px rgba(0,0,0,0.6);");
client.println(" color: #fff;");
client.println(" background-color: #8195af;");
client.println(" background-image:");
client.println(" -webkit-gradient(linear, left top, left bottom,");
client.println(" from(rgba(255,255,255,.4)),");
client.println(" to(rgba(255,255,255,.05)) ),");
client.println(" -webkit-gradient(linear, left top, left bottom,");
client.println(" from(transparent),");
client.println(" to(rgba(0,0,64,.1)) );");
client.println(" background-repeat: no-repeat;");
client.println(" background-position: top left, bottom left;");
client.println(" -webkit-background-size: 100% 21px, 100% 22px;");
client.println(" -webkit-box-sizing: border-box;");
client.println(" }");
client.println("");
client.println(".header-wrapper h1 {");
client.println(" text-align: center;");
client.println(" font-size: 20px;");
client.println(" line-height: 44px;");
client.println(" margin: 0;");
client.println(" }");
client.println("");
client.println(".group-wrapper {");
client.println(" margin: 9px;");
client.println(" }");
client.println("");
client.println(".group-wrapper h2 {");
client.println(" color: #4c566c;");
client.println(" font-size: 17px;");
client.println(" line-height: 0.8;");
client.println(" font-weight: bold;");
client.println(" text-shadow: #fff 0 1px 0;");
client.println(" margin: 20px 10px 12px;");
client.println(" }");
client.println("");
client.println(".group-wrapper h3 {");
client.println(" color: #4c566c;");
client.println(" font-size: 12px;");
client.println(" line-height: 1;");
client.println(" font-weight: bold;");
client.println(" text-shadow: #fff 0 1px 0;");
client.println(" margin: 20px 10px 12px;");
client.println(" }");
client.println("");
client.println(".group-wrapper table {");
client.println(" background-color: #fff;");
client.println(" -webkit-border-radius: 10px;");

client.println(" -moz-border-radius: 10px;");
client.println(" -khtml-border-radius: 10px;");
client.println(" border-radius: 10px;");

client.println(" font-size: 17px;");
client.println(" line-height: 20px;");
client.println(" margin: 9px 0 20px;");
client.println(" border: solid 1px #a9abae;");
client.println(" padding: 11px 3px 12px 3px;");
client.println(" margin-left:auto;");
client.println(" margin-right:auto;");

client.println(" -moz-transform :scale(1);"); //Code for Mozilla Firefox
client.println(" -moz-transform-origin: 0 0;");

client.println(" }");
client.println("");

//how the green (ON) LED will look
client.println(".green-circle {");
client.println(" display: block;");
client.println(" height: 23px;");
client.println(" width: 23px;");
client.println(" background-color: #0f0;");
//client.println(" background-color: rgba(60, 132, 198, 0.8);");
client.println(" -moz-border-radius: 11px;");
client.println(" -webkit-border-radius: 11px;");
client.println(" -khtml-border-radius: 11px;");
client.println(" border-radius: 11px;");
client.println(" margin-left: 1px;");

client.println(" background-image: -webkit-gradient(linear, 0% 0%, 0% 90%, from(rgba(46, 184, 0, 0.8)), to(rgba(148, 255, 112, .9)));@");
client.println(" border: 2px solid #ccc;");
client.println(" -webkit-box-shadow: rgba(11, 140, 27, 0.5) 0px 10px 16px;");
client.println(" -moz-box-shadow: rgba(11, 140, 27, 0.5) 0px 10px 16px; /* FF 3.5+ */");
client.println(" box-shadow: rgba(11, 140, 27, 0.5) 0px 10px 16px; /* FF 3.5+ */");

client.println(" }");
client.println("");

//how the black (off)LED will look
client.println(".black-circle {");
client.println(" display: block;");
client.println(" height: 23px;");
client.println(" width: 23px;");
client.println(" background-color: #040;");
client.println(" -moz-border-radius: 11px;");
client.println(" -webkit-border-radius: 11px;");
client.println(" -khtml-border-radius: 11px;");
client.println(" border-radius: 11px;");
client.println(" margin-left: 1px;");
client.println(" -webkit-box-shadow: rgba(11, 140, 27, 0.5) 0px 10px 16px;");
client.println(" -moz-box-shadow: rgba(11, 140, 27, 0.5) 0px 10px 16px; /* FF 3.5+ */");
client.println(" box-shadow: rgba(11, 140, 27, 0.5) 0px 10px 16px; /* FF 3.5+ */");
client.println(" }");
client.println("");

//this will add the glare to both of the LEDs
client.println(" .glare {");
client.println(" position: relative;");
client.println(" top: 1;");
client.println(" left: 5px;");
client.println(" -webkit-border-radius: 10px;");
client.println(" -moz-border-radius: 10px;");
client.println(" -khtml-border-radius: 10px;");
client.println(" border-radius: 10px;");
client.println(" height: 1px;");
client.println(" width: 13px;");
client.println(" padding: 5px 0;");
client.println(" background-color: rgba(200, 200, 200, 0.25);");
client.println(" background-image: -webkit-gradient(linear, 0% 0%, 0% 95%, from(rgba(255, 255, 255, 0.7)), to(rgba(255, 255, 255, 0)));");
client.println(" }");
client.println("");

//and finally this is the end of the style data and header
client.println("</style>");
client.println("</head>");

//now printing the page itself
client.println("<body>");
client.println("<div class=\"view\">");
client.println(" <div class=\"header-wrapper\">");
client.println(" <h1>Ethernet Switching</h1>");
client.println(" </div>");
client.println("<div class=\"group-wrapper\">");
client.println(" <h2>Switch the required output.</h2>");
client.println();

//This is for the arduino to construct the page on the fly.
sentHeader = true;
}

char c = client.read();

if(reading && c == ' '){
reading = false;
}

// Serial.print(c);

if(c == '?') {
reading = true; //found the ?, begin reading the info
}

if(reading){
if(c == 'H') {outp = 1;}
if(c == 'L') {outp = 0;}
Serial.print(c); //print the value of c to serial communication
//Serial.print(outp);
//Serial.print('\n');

switch (c) {
case '2':
//add code here to trigger on 2
triggerPin(2, client, outp);
break;
case '3':
//add code here to trigger on 3
triggerPin(3, client, outp);
break;
case '4':
//add code here to trigger on 4
triggerPin(4, client, outp);
break;
case '5':
//add code here to trigger on 5
triggerPin(5, client, outp);
//printHtml(client);
break;
case '6':
//add code here to trigger on 6
triggerPin(6, client, outp);
break;
case '7':
//add code here to trigger on 7
triggerPin(7, client, outp);
break;
case '8':
//add code here to trigger on 8
triggerPin(8, client, outp);
break;
case '9':
//add code here to trigger on 9
triggerPin(9, client, outp);
break;
}

}

if (c == '\n' && currentLineIsBlank){
printLastCommandOnce = true;
printButtonMenuOnce = true;
triggerPin(777, client, outp); //Call to read input and print menu. 777 is used not to update any outputs
break;
}
}
}

//Set Variables Before Exiting
printLastCommandOnce = false;
printButtonMenuOnce = false;

allOn = "";
allOff = "";
client.println("\n<h3 align=\"center\">&copy; Author – Claudio Vella <br> Malta – October – 2012</h3>");
client.println("</div>\n</div>\n</body>\n</html>");

delay(1); // give the web browser time to receive the data
client.stop(); // close the connection:

}

}

void triggerPin(int pin, EthernetClient client, int outp){
//Switching on or off outputs, reads the outputs and prints the buttons

//Setting Outputs
if (pin != 777){
if(outp == 1) {
digitalWrite(pin, HIGH);
}
if(outp == 0){
digitalWrite(pin, LOW);
}
}
//Refresh the reading of outputs
readOutputStatuses();

//Prints the buttons
if (printButtonMenuOnce == true){
printHtmlButtons(client);
printButtonMenuOnce = false;
}

}

//print the html buttons to switch on/off channels
void printHtmlButtons(EthernetClient client){

//Start to create the html table
client.println("");
//client.println("<p>");
client.println("<FORM>");
client.println("<table border=\"0\" align=\"center\">");

//Start printing button by button
for (int var = outputLowest; var < outputLowest + outputQuantity; var++) {

//set command for all on/off
allOn += "H";
allOn += var;
allOff += "L";
allOff += var;

//Print begining of row
client.print("<tr>\n");

//Prints the ON Buttons
client.print(" <td><INPUT TYPE=\"button\" VALUE=\"Switch ON – Pin ");
client.print(var);
client.print("\" onClick=\"parent.location='/?H");
client.print(var);
client.print("'\"></td>\n");

//Prints the OFF Buttons
client.print(" <td><INPUT TYPE=\"button\" VALUE=\"Switch OFF – Pin ");
client.print(var);
client.print("\" onClick=\"parent.location='/?L");
client.print(var);
client.print("'\"></td>\n");

//Print first part of the Circles or the LEDs
if (readInput[var] == true){
client.print(" <td><div class='green-circle'><div class='glare'></div></div></td>\n");
}else
{
client.print(" <td><div class='black-circle'><div class='glare'></div></div></td>\n");
}

//Print end of row
client.print("</tr>\n");
}

//Prints the ON All Pins Button
client.print("<tr>\n<td><INPUT TYPE=\"button\" VALUE=\"Switch ON All Pins");
client.print("\" onClick=\"parent.location='/?");
client.print(allOn);
client.print("'\"></td>\n");

//Prints the OFF All Pins Button
client.print("<td><INPUT TYPE=\"button\" VALUE=\"Switch OFF All Pins");
client.print("\" onClick=\"parent.location='/?");
client.print(allOff);
client.print("'\"></td>\n<td></td>\n</tr>\n");

//Closing the table and form
client.println("</table>");
client.println("</FORM>");
//client.println("</p>");

}

//Reading the Output Statuses
void readOutputStatuses(){
for (int var = outputLowest; var < outputLowest + outputQuantity; var++) {
readInput[var] = digitalRead(var);
//Serial.print(readInput[var]);
}

}

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