I need help regarding the following:
A fingerprint sensor connecting to a lcd and works perfectly.
Now I want to add the sensor data in memory Sd connecting with Ethernet shield.
Add in the program (comlete attached) initialization of the card that does not give me problems, but when I want to write information to the sd memory the program works .... in part but does not save the information or the sensor or less on the sd card and also the lcd does not work.
the code to write on the card, was added where information is stored in the sensor:
#include <Adafruit_Fingerprint.h>
#include <SoftwareSerial.h>
#include <SD.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11,8, 7, 6, 5);
const int chipSelect = 4;
File myFile;
int x=0;
int y=0;
int getFingerprintIDez();
uint8_t getFingerprintEnroll(uint8_t id);
SoftwareSerial mySerial(2, 3);
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);
void setup()
{
lcd.begin(16,2); lcd.setCursor(0,0); lcd.print("Scanear Huella");
pinMode(13,OUTPUT);
pinMode(12,OUTPUT);
pinMode(9,OUTPUT);
pinMode(11, OUTPUT);
pinMode(0, OUTPUT);
pinMode(0, OUTPUT);// sd
pinMode(A0, INPUT);
Serial.begin(9600);
Serial.print("initializing SD card...");
pinMode(4, OUTPUT);
if (!SD.begin(4)) {
Serial.println("initializing error!");
return;
}
Serial.println("initializing ok.");
// set the data rate for the sensor serial port
finger.begin(57600);
if (finger.verifyPassword()) {
lcd.clear();
lcd.print(" Inicializando");
delay(1000);
Serial.println("Found fingerprint sensor!!");
} else {
Serial.println("Did not find fingerprint sensor :(");
while (1);
}
}
void loop() // run over and over again
{
lcd.clear();
lcd.print(" id=");
delay(1000);
Serial.println("Type in the ID # you want to save this finger as......");
uint8_t id = 0;
while (true) {
while (! Serial.available());
char c = Serial.read();
if (! isdigit(c)) break;
id *= 10;
id += c - '0';
}
lcd.clear();
lcd.print(id);
delay(1000);
Serial.print("Enrolling ID #");
Serial.println(id);
while (! getFingerprintEnroll(id) );
}
uint8_t getFingerprintEnroll(uint8_t id) {
uint8_t p = -1;
Serial.println("Waiting for valid finger to enroll");
lcd.clear();
lcd.print(" waiting......¡");
delay(1000);
while (p != FINGERPRINT_OK) {
p = finger.getImage();
switch (p) {
case FINGERPRINT_OK:
lcd.clear();
lcd.print(" Image taken¡");
delay(1000);
Serial.println("Image taken");
break;
case FINGERPRINT_NOFINGER:
Serial.println(".");
break;
case FINGERPRINT_PACKETRECIEVEERR:
Serial.println("Communication error");
break;
case FINGERPRINT_IMAGEFAIL:
Serial.println("Imaging error");
break;
default:
Serial.println("Unknown error");
break;
}
}
// OK success!
p = finger.image2Tz(1);
switch (p) {
case FINGERPRINT_OK:
lcd.clear();
lcd.print("Image converted");
delay(1000);
Serial.println("Image converted");
break;
case FINGERPRINT_IMAGEMESS:
Serial.println("Image too messy");
return p;
case FINGERPRINT_PACKETRECIEVEERR:
Serial.println("Communication error");
return p;
case FINGERPRINT_FEATUREFAIL:
Serial.println("Could not find fingerprint features");
return p;
case FINGERPRINT_INVALIDIMAGE:
Serial.println("Could not find fingerprint features");
return p;
default:
Serial.println("Unknown error");
return p;
}
lcd.clear();
lcd.print(" Remove finger¡");
delay(1000);
Serial.println("Remove finger");
delay(2000);
p = 0;
while (p != FINGERPRINT_NOFINGER) {
p = finger.getImage();
}
p = -1;
lcd.clear();
lcd.print(" Place same finger again...¡");
delay(1000);
Serial.println("Place same finger again");
while (p != FINGERPRINT_OK) {
p = finger.getImage();
switch (p) {
case FINGERPRINT_OK:
Serial.println("Image taken");
break;
case FINGERPRINT_NOFINGER:
Serial.print(".");
break;
case FINGERPRINT_PACKETRECIEVEERR:
Serial.println("Communication error");
break;
case FINGERPRINT_IMAGEFAIL:
Serial.println("Imaging error");
break;
default:
Serial.println("Unknown error");
break;
}
}
// OK success!
p = finger.image2Tz(2);
switch (p) {
case FINGERPRINT_OK:
lcd.clear();
lcd.print(" Image converted¡");
delay(1000);
Serial.println("Image converted");
break;
case FINGERPRINT_IMAGEMESS:
Serial.println("Image too messy");
return p;
case FINGERPRINT_PACKETRECIEVEERR:
Serial.println("Communication error");
return p;
case FINGERPRINT_FEATUREFAIL:
Serial.println("Could not find fingerprint features");
return p;
case FINGERPRINT_INVALIDIMAGE:
Serial.println("Could not find fingerprint features");
return p;
default:
Serial.println("Unknown error");
return p;
}
// OK converted!
p = finger.createModel();
if (p == FINGERPRINT_OK) {
lcd.clear();
lcd.print(" Prints matched¡");
delay(1000);
Serial.println("Prints matched!");
} else if (p == FINGERPRINT_PACKETRECIEVEERR) {
Serial.println("Communication error");
return p;
} else if (p == FINGERPRINT_ENROLLMISMATCH) {
Serial.println("Fingerprints did not match");
return p;
} else {
Serial.println("Unknown error");
return p;
}
p = finger.storeModel(id);
if (p == FINGERPRINT_OK) {
// Stored! en sd
myFile = SD.open("sensor.txt", FILE_WRITE);
// if the file opened okay, write to it:
if (myFile) {
Serial.print("Writing to sensor.txt...");
myFile.println("sensor 1, 2, 3.");
// close the file:
myFile.close();
Serial.println("done.");
} else {
// if the file didn't open, print an error:
Serial.println("error openingsensor.txt");
}
// re-open the file for reading:
myFile = SD.open("sensor.txt");
if (myFile) {
Serial.println("sensor.txt:");
// read from the file until there's nothing else in it:
while (myFile.available()) {
Serial.write(myFile.read());
}
// close the file:
myFile.close();
} else {
// if the file didn't open, print an error:
Serial.println("error opening test.txt");
}
/// end sd
lcd.clear();
lcd.print("Stored!");
delay(1000);
Serial.println("¡¡ informacion Guardada");
} else if (p == FINGERPRINT_PACKETRECIEVEERR) {
Serial.println("Communication error");
return p;
} else if (p == FINGERPRINT_BADLOCATION) {
Serial.println("Could not store in that location");
return p;
} else if (p == FINGERPRINT_FLASHERR) {
Serial.println("Error writing to flash");
return p;
} else {
Serial.println("Unknown error");
return p;
}
}