Good evening, this is my first post.
I've been doing a lot of work with Arduino recently using the ethernet shield, by I've encountered a problem that I'm not able to overcome yet.
My arduino will not read the .txt file using this code :
#include <SPI.h>
#include <Ethernet.h>
#include <SD.h>
#include <Servo.h>
Servo myservo; // create servo object to control a servo
byte mac[] = {
0x90, 0xA2, 0xDA, 0x0D, 0x03, 0xB2 }; //physical mac address
byte ip[] = {
192, 168, 1, 177 }; // 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;
char requested[100];
int i = 0;
int untilLunch1;
int untilLunch2;
int untilLunch3;
int untilLunch4;
int untilLunch5;
int nbCharOk;
int compteur = 0;
int compt = 0;
int verif = 0;
int hour;
int minute;
char hourChar[2];
char minuteChar[2];
File htmlFile;
void setup()
{
// pinMode(6, OUTPUT); //pin selected to control
//start Ethernet
Ethernet.begin(mac, ip, gateway, subnet);
server.begin();
//the pin for the servo co
//enable serial data print
Serial.begin(9600);
pinMode(10, OUTPUT);
Serial.println("test SD load html file 1.0"); // so I can keep track of what is loaded
if(!SD.begin(4))
{
Serial.println("Erreur de chargement de la carte");
}
else Serial.println("Carte Mini SD chargée correctement");
}
void loop ()
{
// Create a client connection
EthernetClient client = server.available();
//Serial.println(millis());
if (client) {
Serial.println("Client repéré");
while (client.connected()) {
if (client.available()) {
char c = client.read();
requested[i] = c;
i = i + 1;
//Serial.println(requested);
//Serial.println(c);
//read char by char HTTP request
if (readString.length() < 100) {
//store characters to string
readString += c;
//Serial.println(readString);
}
//if HTTP request has ended
if (c == '\n') {
///////////////
Serial.println(readString); //print to serial monitor for debuging
char mainPage[15] = "GET / HTTP/1.1";
char hourSent[100] = "GET /?hour=";
char doseSent[15] = "GET /?n1=";
char testNoModification[2] = "N";
// comparaison avec requête "heure"
nbCharOk = 0;
for (compteur = 5; compteur < 10; compteur++)
{
if(hourSent[compteur] == requested[compteur])
{
nbCharOk = nbCharOk + 1;
}
}
Serial.println(nbCharOk);
client.println("<p></p>");
if(nbCharOk == 5)
{
hourChar[0] = requested[11];
hourChar[1] = requested[12];
minuteChar[0] = requested[13];
minuteChar[1] = requested[14];
int Dizaine = hourChar[0] - '0';
int Unit = hourChar[1] - '0';
hour = Dizaine * 10 + Unit;
Dizaine = minuteChar[0] - '0';
Unit = minuteChar[1] - '0';
minute = Dizaine * 10 + Unit;
Serial.println(minute);
Serial.println(hour);
}
nbCharOk = 0;
if(true)
{
Serial.println("HTLML FILE REQUEST CONFIRMED");
// open the file. note that only one file can be open at a time,
// so you have to close this one before opening another.
File dataFile = SD.open("datalog.txt");
// if the file is available, write to it:
if (dataFile) {
while (dataFile.available()) {
//Serial.write(dataFile.read());
client.write(dataFile.read());
}
}
else Serial.println("Bug");
dataFile.close();
Serial.println("Etape 3");
}
// comparaison avec requête doses et traitement requête
for (compt = 4; compt <8; compt++)
{
if(requested[compt] == doseSent[compt])
{
nbCharOk = nbCharOk + 1;
}
}
Serial.println(compt);
Serial.println(nbCharOk);
if (nbCharOk == 4)
{
Serial.println("NB DOSE TIME");
// Instructions pour s'assurer qu'il y a modifications
nbCharOk = 0;
Serial.println(requested);
for (verif = 3; verif <94; verif = verif + 6)
{
Serial.println(verif);
Serial.println(requested[verif]);
if(requested[verif] == testNoModification[0])
{
nbCharOk = nbCharOk + 1;
}
}
// si nbCharOk = 15, alors on a envoyé un formulaire vide
if (nbCharOk != 15)
{
Serial.println("Ordre reçu, traitement ...");
}
}
delay(1);
//stopping client
client.stop();
//clearing string for next read
readString="";
i = 0;
}
}
}
}
}
Ok, let me precise something, it works if I remove the Bolded code, which is completely unrelated to the SD Card !
This code :
// comparaison avec requête doses et traitement requête
for (compt = 4; compt <8; compt++)
{
if(requested[compt] == doseSent[compt])
{
nbCharOk = nbCharOk + 1;
}
}
Serial.println(compt);
Serial.println(nbCharOk);
if (nbCharOk == 4)
{
Serial.println("NB DOSE TIME");
// Instructions pour s'assurer qu'il y a modifications
nbCharOk = 0;
Serial.println(requested);
for (verif = 3; verif <94; verif = verif + 6)
{
Serial.println(verif);
Serial.println(requested[verif]);
if(requested[verif] == testNoModification[0])
{
nbCharOk = nbCharOk + 1;
}
}
// si nbCharOk = 15, alors on a envoyé un formulaire vide
if (nbCharOk != 15)
{
Serial.println("Ordre reçu, traitement ...");
}
}
I would like to precise that I tried putting it in a function that was not used in the entire code, and it still buggs.
I am using a Arduino Uno.
Thank you for your time and reading me, I am completely blocked, and I don't know what is the problem.
If you want me to add/modify/remove something in this post, tell me, this is my first post, so it won't be a perfect one ^^.
