4x4 keypad 密碼

Winmax923

請問我要如何修改才能把"1234"換成可以自設任何的密碼運行呢? 謝謝大家


#include <Keypad.h>

const int ROW_NUM = 4; //four rows
const int COLUMN_NUM = 4; //four columns

char keys[ROW_NUM][COLUMN_NUM] = {
  {'1','2','3', 'A'},
  {'4','5','6', 'B'},
  {'7','8','9', 'C'},
  {'*','0','#', 'D'}
};

byte pin_rows[ROW_NUM] = {46, 47, 48, 49}; //connect to the row pinouts of the keypad
byte pin_column[COLUMN_NUM] = {50, 51, 52, 53}; //connect to the column pinouts of the keypad

Keypad keypad = Keypad( makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM );

const String password = "1234"; // change your password here
String input_password;

void setup(){
  Serial.begin(9600);
  input_password.reserve(32); // maximum input characters is 33, change if needed
}

void loop(){
  char key = keypad.getKey();

  if (key){
    Serial.println(key);

    if(key == '*') {
      input_password = ""; // clear input password
    } else if(key == '#') {
      if(password == input_password) {
        Serial.println("password is correct");
        // DO YOUR WORK HERE

      } else {
        Serial.println("password is incorrect, try again");
      }

      input_password = ""; // clear input password
    } else {
      input_password += key; // append new character to input password string
    }
  }
}

sangshu

const String password = "1234"; // change your password here
修改这里即可。

Winmax923

sangshu 发表于 2021-3-1 13:50
const String password = "1234"; // change your password here
修改这里即可。

這個是預先設定好的密碼呢, 我想要的是自己可以輸入一次自設密碼作為密碼用呢

sangshu

那你得把密码存到eeprom中吧，不能每次都重新设置吧。用一个按键作为结束键即可。输入完按键后，将密码写到eeprom中，每次启动时，把密码读到string变量里即可。如果输入完，按#，还是比较，密码是否正确。