SOLVED Issues With LCD Display + Fingerprint Scanner + Ethernet Shield

i have arduino + ethernet shield + fingerprint scanner + lcd display 16x2.

my lcd can work ethernet shield , fingerprint scanner can work ethernet shield. if join them, program hang @ setup, @ fps.open , fps.setled(true) commands section. finger print scanner led doesn't want turn on. think because of there 1 or more ports cannot used either fingerprint scanner or lcd together. i've experienced lcd + ethernet shield before when cannot connect lcd port 10-13 because it's used ethernet shield.

here code :

code: [select]

#include <spi.h>
#include <ethernet.h>
#include <keypad.h>
#include <liquidcrystal.h>
#include <fps_gt511c3.h>
#include <softwareserial.h>

//declare fps pin
fps_gt511c3 fps(2,3);

int piezopin = a0; //declare pin piezo
int y = 0; //variable lcd column
liquidcrystal lcd(9, 8, 7, 6, 5, 4); //declare lcd used pin. dont ever use pin 11 , 12 if have ethernet shield attached

const byte rows = 4; // 4 rows
const byte cols = 3; // 3 columns

// define keymap
char keys[rows][cols] = {
  {'1','2','3',},
  {'4','5','6',},
  {'7','8','9',},
  {'*','0','#',}
};

byte rowpins[rows] = { 13, 10, a1, a2 };// connect keypad row0, row1, row2 , row3 these arduino pins.
byte colpins[cols] = { a3, a4, a5 };// connect keypad col0, col1 , col2 these arduino pins.


// create keypad
keypad keypad = keypad( makekeymap(keys), rowpins, colpins, rows, cols );

// enter mac address controller below.
// newer ethernet shields have mac address printed on sticker on shield
byte mac[] = {  
  0x00, 0xaa, 0xbb, 0xcc, 0xde, 0x02 }; //if don't know write here, use random mac address.

// initialize ethernet client library
// ip address , port of server
// want connect (port 80 default http):

ethernetclient client;
char server[] = "192.168.88.251"; //server ip address or domain

void setup() {
  // open serial communications , wait port open:
  serial.begin(9600);
  // check needed on leonardo:
  while (!serial) {
    ; // wait serial port connect. needed leonardo only
  }
  
  //initializing lcd, give short animation
  lcd.begin(16, 2);
  lcd.print("initializing....");
  delay(2000);
  for (int x=0; x<16; x++) {
    lcd.scrolldisplayleft();
    delay(250);
  }
  beep1long(); //give 1 long beep before begin
  //change lcd display
  lcd.clear();
  lcd.setcursor(0,0);
  lcd.print("press finger :");
  
  //starting fingerprint
  delay(100);
  fps.open();
  fps.setled(true);

}

it hang @ fps.open , fps.setled(true);

because lcd , piezo still works before commands. when put fps.open , fps.setled before lcd.begin command, lcd , piezo didnt work.

for information use arduino uno, fingerprint scanner (gt-511c3), , lcd display 16x2.

any appreciated.s

does know ?

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