Keypad Entry Lock

I also tested the code and found it not quite worthy of burglars. The code only waits for the correct keys to be pressed, while any keys pressed in between will not matter. There are two if statements within lines 33 - 41; replace them with this code and it will work. I also included the serial print statements so you can see your inputs in the serial monitor. if(key != NO_KEY) { if (key == '*' || key == '#') { position = 0; LockedPosition(true); Serial.println(key); } if (key != password[position]) {position = 0; LockedPosition(true); Serial.println(key); } if (key == password[position]) { position ++; Serial.println(key); } }

i cant find the circuit diagram!

It's a great project. Here's the thing. Try hitting random keys with 4, 2, 7 randomly thrown in there. It still unlocks. Any way to fix that?

In my same code it is showing that Arduino: 1.8.13 (Windows 10), Board: "Arduino Uno" Multiple libraries were found for "Servo.h" lock:2:10: fatal error: Keypad.h: No such file or directory Used: C:\\Users\\Admin\\Documents\\Arduino\\libraries\\Servo #include <Keypad.h> Not used: C:\\Program Files (x86)\\Arduino\\libraries\\Servo ^~~~~~~~~~ compilation terminated. exit status 1 Keypad.h: No such file or directory This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences. Can you help me out.Please

Ive never attempted any of these projects. Is there a more clear wiring schematic that I can follow. Or step by step instructions?

Hi. I see that there is no shematic for the wiring of this project. I created one based on the code. You can go check it out with the link below. https://drive.google.com/file/d/1cDwoOGePrVwzq2nr6Vq05JQnBwQedhgd/view?usp=sharing

The code isn't working for me and I am a beginner, any code that I can try would be much appreciated.

Really a great project..... My first ever arduino project....... Can you share the schematic clearly as i cannot understand where the pin is located. Thank you and once again great project

Very neat. I'm trying to create a lock system with much of the same parts you are using, but I'm wondering how your code knows the value of the user input when all the keys are represented using chars. I'm pretty new to the keypad library as well as using arrays so forgive me if I don't make sense. -charlie

to me it gives the error: C:\\Users\\XXXX\\Documents\\Arduino\\code_keypad\\code_keypad.ino:6:18: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] char* password = "XXX"; ^~~~~ can anyone help me please?

PLEASE I NEED THE VIDEO ABOUT THE PROJECT

Hello, I see you guys understand how a keypad works, can you help me in my project plz ?

Simple but very cool code. It works perfectly. Congratulations. Jorge

Any one help me with keypad programing. I need to run a program based on the input entered using keypad. For example. If i press 1000 in key pad and press a push button the led to be glow one second. If i press the start button again it should run a program again for one second. * button to clear the input # button to confirm the input. Any one can help me with coding

Thank you so much for sharing your ideas with us! It will be a big help for us whose an amateur of this

i havent touched an arduino in years and im out of practice, but i remember trying to write a program similar to this years ago. if im not mistaken, this code has teh same issue, correct me if im wrong.... basically, if i remember correctly, the code says the pw position is 0, and if the key entered is a correct pw char, then the position advances one, and when it advances 3 positions, the lock opens. so, again, correct me if im wrong here, but this means that if someone comes up and randomly hits, say "66987676898678686876-4-4567896568587698765986576-2-98324058923583420580834058509-7" the lock will open because the 4, 2, and 7 advanced it 3 steps, but there is no instance for incorrect inputs. really, if someone wanted to hack it intelligently, they would just enter 0-9 until it opens, max of 3x assuming a 3 digit code (less than 2x in this instance).

where is diagram

Hi. I see that there is no shematic for the wiring of this project. I created one based on the code. You can go check it out with the link below. https://drive.google.com/file/d/1cDwoOGePrVwzq2nr6Vq05JQnBwQedhgd/view?usp=sharing

awesome project!!! love it. thank you so much

I really like the project but in the code the "#include<Keypad.h>" is giving me error. It tells ,e that doesn't exist. Could you please help me. I really like the project.

Where is the proper schematic for this project? Still love the Idea though !!

awesome project!!! love it. thank you so much

It's a great project. Here's the thing. Try hitting random keys with 4, 2, 7 randomly thrown in there. It still unlocks. Any way to fix that?

PLEASE I NEED THE VIDEO ABOUT THE PROJECT

I keep geting this error:C:\\Users\\----\\Documents\\Arduino\\code\\code.ino:5:18: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] char* password = "427"; // change the password here, just pick any 3 numbers ^~~~~

Any one help me with keypad programing. I need to run a program based on the input entered using keypad. For example. If i press 1000 in key pad and press a push button the led to be glow one second. If i press the start button again it should run a program again for one second. * button to clear the input # button to confirm the input. Any one can help me with coding

Thank you so much for sharing your ideas with us! It will be a big help for us whose an amateur of this

In my same code it is showing that Arduino: 1.8.13 (Windows 10), Board: "Arduino Uno" Multiple libraries were found for "Servo.h" lock:2:10: fatal error: Keypad.h: No such file or directory Used: C:\\Users\\Admin\\Documents\\Arduino\\libraries\\Servo #include <Keypad.h> Not used: C:\\Program Files (x86)\\Arduino\\libraries\\Servo ^~~~~~~~~~ compilation terminated. exit status 1 Keypad.h: No such file or directory This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences. Can you help me out.Please

The code isn't working for me and I am a beginner, any code that I can try would be much appreciated.

I really like the project but in the code the "#include<Keypad.h>" is giving me error. It tells ,e that doesn't exist. Could you please help me. I really like the project.

i havent touched an arduino in years and im out of practice, but i remember trying to write a program similar to this years ago. if im not mistaken, this code has teh same issue, correct me if im wrong.... basically, if i remember correctly, the code says the pw position is 0, and if the key entered is a correct pw char, then the position advances one, and when it advances 3 positions, the lock opens. so, again, correct me if im wrong here, but this means that if someone comes up and randomly hits, say "66987676898678686876-4-4567896568587698765986576-2-98324058923583420580834058509-7" the lock will open because the 4, 2, and 7 advanced it 3 steps, but there is no instance for incorrect inputs. really, if someone wanted to hack it intelligently, they would just enter 0-9 until it opens, max of 3x assuming a 3 digit code (less than 2x in this instance).

Very neat. I'm trying to create a lock system with much of the same parts you are using, but I'm wondering how your code knows the value of the user input when all the keys are represented using chars. I'm pretty new to the keypad library as well as using arrays so forgive me if I don't make sense. -charlie

Hello, I see you guys understand how a keypad works, can you help me in my project plz ?

Where is the proper schematic for this project? Still love the Idea though !!

to me it gives the error: C:\\Users\\XXXX\\Documents\\Arduino\\code_keypad\\code_keypad.ino:6:18: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] char* password = "XXX"; ^~~~~ can anyone help me please?

i cant find the circuit diagram!

where is diagram

Ive never attempted any of these projects. Is there a more clear wiring schematic that I can follow. Or step by step instructions?

Really a great project..... My first ever arduino project....... Can you share the schematic clearly as i cannot understand where the pin is located. Thank you and once again great project

Simple but very cool code. It works perfectly. Congratulations. Jorge