Hi all, Now I'm facing an issues which to works with both speaker and keypad together. The correct logic is that when I enter the correct password, the servo motor will turn and speaker to speech the specified word that have been set well. Then after the key '#' was pressed, the servo will turn back to the origin position in order to close the door. But the problem now is that after I enter the correct password, the servo will turned and the speaker to output the words. Then, when I press key '#', the servo wont turn back again but the speaker still works. Please advise how to proceed ya guys. Thanks. Below is my code.
#include <Password.h>
#include <Keypad.h>
#include <Servo.h>
#include <SD.h> //include SD module library
#include <TMRpcm.h> //include speaker control library
#include <SPI.h>
#define SD_ChipSelectPin 10
Servo myservo; //declares servo
Password password = Password( "123" ); //password to unlock, can be changed
TMRpcm tmrpcm;
const byte ROWS = 4; // Four rows
const byte COLS = 3; // columns
// Define the Keymap
char keys[ROWS][COLS] = {
{'1','2','3'},
{'4','5','6'},
{'7','8','9'},
{'*','0','#'}
};
// Connect keypad ROW0, ROW1, ROW2 and ROW3 to these Arduino pins.
byte rowPins[ROWS] = { 8, 7, 6, 5 };// Connect keypad COL0, COL1 and COL2 to these Arduino pins.
byte colPins[COLS] = { 4, 3, 2 };
// Create the Keypad
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
void setup(){
Serial.begin(9600);
delay(200);
myservo.attach(A3); //servo on digital pin 13 //servo
myservo.write(0);
tmrpcm.speakerPin = 9;
int buzzer = A2;
if (!SD.begin(SD_ChipSelectPin)) {
return;
}
}
void loop()
{
char key = keypad.getKey();
keypad.getKey();
keypad.addEventListener(keypadEvent); //add an event listener for this keypad
if (key == '#')
{
closeDoor();
}
}
void keypadEvent(KeypadEvent eKey){
switch (keypad.getState()){
case PRESSED:
playsound();
Serial.print("Pressed: ");
Serial.println(eKey);
delay(10);
switch (eKey){
case '*': checkPassword(); delay(1); break;
case '#': password.reset() ; delay(1); break;
default: password.append(eKey); delay(1);
}
}
}
void checkPassword()
{
if (password.evaluate())
{ //if password is right open
Serial.println("Password correct!!! Door open");
delay(500);
openDoor();
}
else
{
password.reset();
Serial.println("Wrong Password !!! Please enter again"); //if passwords wrong keep locked
}
}
void openDoor()
{
myservo.write(90); //deg
delay(500);
speaker();
}
void closeDoor()
{
myservo.write(0);
delay(500);
}
void playsound()
{
tone(A2, 100);
delay(200);
noTone(A2);
}
void speaker()
{
if (SD.begin(SD_ChipSelectPin))
{
tmrpcm.quality(1);
tmrpcm.setVolume(6); //0 to 7. Set volume level
tmrpcm.play("3.wav");
}
}
void speaker1()
{
if (SD.begin(SD_ChipSelectPin))
{
tmrpcm.quality(1);
tmrpcm.setVolume(6); //0 to 7. Set volume level
tmrpcm.play("4.wav");
}
}
See