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Arduino rfid lock lcd led buzzer relay
Arduino rfid lock lcd led buzzer relay











I just found The BottleNeck problem which was Causing issues like LCD Dimming, Relay not getting Triggered, Leds not Glowing together, etc. Thanks for Reading such a long long post, Hoping for a positive reply. (I think i might have chosen the wrong pins for the LCD).Īn Additional Problem with my LCD is whenever the Relay turns on the Display Goes Dim (Not the Backlight but the Characters).

arduino rfid lock lcd led buzzer relay

After i Press the "A" button again to Activate the system, the System Activates and the Display comes Back On. But the Command works and it does turns off the Lock. Here the Problem is that as soon as i Enter this mode to Deactivate the System, the LCD starts Flickering and after i successfully enter the password and deactivate the system the (ACTIVE = false) statement saying System Deactivated shows up for just a milli second or so and the display goes empty (Though the backlight stays on). So the Problem is that when i enter the programming mode and after successfully entering the programming code, when i try to choose what i want to edit (whether i want to change the Access code or the programming code). PART 1: (The Access password and Programming password Changing Part) PARTS Of The CODE Where The PROBLEM Really Is: You will need to download it all, it Exceeds the Character Limit. Download the Ino files and open it up in your IDE. I can not paste the code here becuase it exceeds the character limit. The Basic Features like Keypad Unlock and RFID Unlock work Perfectly Fine but the Additional Features to Change Password & Programming Password Do not Work (Take a Look at the Code):

arduino rfid lock lcd led buzzer relay

You can take a look at the MFRC522 Example sketches for it's Pinout and connection with the Mega. sorry! But it's easy to figure out the pins through the codes. I don't have a schematic for this as i made it myself so.

  • Single Channel Relay module (you might find some lines in the code where the relay is pulled LOW rather than HIGH, this is.
  • First i will post the Full code, then the part of the code which have the issues. I was able to write the Following Code by myself ( 99%).

    arduino rfid lock lcd led buzzer relay

    I learned the Basics through Arduino Reference Pages, Forum, Google, Youtube, Etc. Hey Guys! I'm Somewhat new to programming and had started using Arduino IDE around 3-4 Months Ago. If there's a mistake, please let me know).

    arduino rfid lock lcd led buzzer relay

    (Posting for the First time on the Forum, so don't get mad at me.













    Arduino rfid lock lcd led buzzer relay