Arduino Keypad Solenoid Lock 

This Comment for Robo tronics tecnical in the code the word keypad does not work on the code so it dont work how can i solvet

Sir please I want code sir can you.please

@@omkargopale7562 did you get the code ?

Can u send me code

@@myworld8086 #include char* password = "123"; // change the password here, just pick any 3 numbers int position = 0; const byte ROWS = 4; const byte COLS = 4; char keys[ROWS][COLS] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} }; byte rowPins[ROWS] = { 9, 8, 7, 6 }; byte colPins[COLS] = { 5, 4, 3, 2 }; Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); int Lock = 13; void setup() { pinMode(Lock, OUTPUT); LockedPosition(true); } void loop() { char key = keypad.getKey(); if (key == '*' || key == '#') { position = 0; LockedPosition(true); } if (key == password[position]) { position ++; } if (position == 3) { LockedPosition(false); } delay(100); } void LockedPosition(int locked) { if (locked) { digitalWrite(Lock, LOW); } else { digitalWrite(Lock, HIGH); } }

@@josharduino3241 .

Please can u send me d code

@ปภาวิสัย ยางสวย the code is incomplete bro I want the complete one (all)

//Viral Science ru-vid.com //Arduino Keypad Solenoid Lock #include char* password = "123"; // change the password here, just pick any 3 numbers int position = 0; const byte ROWS = 4; const byte COLS = 4; char keys[ROWS][COLS] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} }; byte rowPins[ROWS] = { 9, 8, 7, 6 }; byte colPins[COLS] = { 5, 4, 3, 2 }; Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); int Lock = 13; void setup() { pinMode(Lock, OUTPUT); LockedPosition(true); } void loop() { char key = keypad.getKey(); if (key == '*' || key == '#') { position = 0; LockedPosition(true); } if (key == password[position]) { position ++; } if (position == 3) { LockedPosition(false); } delay(100); } void LockedPosition(int locked) { if (locked) { digitalWrite(Lock, LOW); } else { digitalWrite(Lock, HIGH); delay(1000); digitalWrite(Lock, LOW); } } at the bottom there is delay(1000); to make it longer put instead of 1000 a different number for 5 seconds change it to 5000

Fritzing it costs

I am using samsung s7 to record videos

9v or 12v is OK DC

3.7v 18650 batteries

Fritzing?

Use ESP32

KEYPAD

Fritzing

3.7v

you need to download keypad.h library from github.com/Chris--A/Keypad .just click download code button on github and download .zip file.then open arduino software ,click sketch button and click include library and select add .zip library and find where you downloded library select and press open. hope it help.

12v you can use 12v adapter

FRITZING

//Viral Science ru-vid.com //Arduino Keypad Solenoid Lock #include char* password = "123"; // change the password here, just pick any 3 numbers int position = 0; const byte ROWS = 4; const byte COLS = 4; char keys[ROWS][COLS] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} }; byte rowPins[ROWS] = { 9, 8, 7, 6 }; byte colPins[COLS] = { 5, 4, 3, 2 }; Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); int Lock = 13; void setup() { pinMode(Lock, OUTPUT); LockedPosition(true); } void loop() { char key = keypad.getKey(); if (key == '*' || key == '#') { position = 0; LockedPosition(true); } if (key == password[position]) { position ++; } if (position == 3) { LockedPosition(false); } delay(100); } void LockedPosition(int locked) { if (locked) { digitalWrite(Lock, LOW); } else { digitalWrite(Lock, HIGH); } }

#include char* password = "123"; // change the password here, just pick any 3 numbers int position = 0; const byte ROWS = 4; const byte COLS = 4; char keys[ROWS][COLS] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} }; byte rowPins[ROWS] = { 9, 8, 7, 6 }; byte colPins[COLS] = { 5, 4, 3, 2 }; Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); int Lock = 13; void setup() { pinMode(Lock, OUTPUT); LockedPosition(true); } void loop() { char key = keypad.getKey(); if (key == '*' || key == '#') { position = 0; LockedPosition(true); } if (key == password[position]) { position ++; } if (position == 3) { LockedPosition(false); } delay(100); } void LockedPosition(int locked) { if (locked) { digitalWrite(Lock, LOW); } else { digitalWrite(Lock, HIGH); } }

#include char* password = "123"; // change the password here, just pick any 3 numbers int position = 0; const byte ROWS = 4; const byte COLS = 4; char keys[ROWS][COLS] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} }; byte rowPins[ROWS] = { 9, 8, 7, 6 }; byte colPins[COLS] = { 5, 4, 3, 2 }; Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); int Lock = 13; void setup() { pinMode(Lock, OUTPUT); LockedPosition(true); } void loop() { char key = keypad.getKey(); if (key == '*' || key == '#') { position = 0; LockedPosition(true); } if (key == password[position]) { position ++; } if (position == 3) { LockedPosition(false); } delay(100); } void LockedPosition(int locked) { if (locked) { digitalWrite(Lock, LOW); } else { digitalWrite(Lock, HIGH); } }

Visit my website www.viralsciencecreativity.com for codes and circuit diagrams

#include char* password = "123"; // change the password here, just pick any 3 numbers int position = 0; const byte ROWS = 4; const byte COLS = 4; char keys[ROWS][COLS] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} }; byte rowPins[ROWS] = { 9, 8, 7, 6 }; byte colPins[COLS] = { 5, 4, 3, 2 }; Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); int Lock = 13; void setup() { pinMode(Lock, OUTPUT); LockedPosition(true); } void loop() { char key = keypad.getKey(); if (key == '*' || key == '#') { position = 0; LockedPosition(true); } if (key == password[position]) { position ++; } if (position == 3) { LockedPosition(false); } delay(100); } void LockedPosition(int locked) { if (locked) { digitalWrite(Lock, LOW); } else { digitalWrite(Lock, HIGH); } }