Electronic Lock Circuit Using Microcontroller

A 4 3 matrix keypad and a 16 2 lcd have been used here.

Electronic lock circuit using microcontroller.

We have already built these kinds of digital locks using arduino using raspberry pi and using 8051 microcontroller. An electronic lock or digital lock is a device which has an electronic control assembly attached to it. Working of electronic lock. Here an at89c52 microcontroller is used and it is an 8 bit controller.

Many electronic code lock are available in market some using microcontroller and many more using discrete electronics components. If the entered password from keypad matches with this password then the lock opens and a message is displayed on lcd also an output pin is made high to be used for further. Before building our password door locking project first we need to collect the required components and then go ahead and follow the step by step building process. After taking inputs from a user.

Using codes for the purpose of a security has been the popular trend recently. Electronic lock takes inputs from the user with the help of 4x4 keypad. A four digit predefined password is specified in the microcontroller at89c51 s program. This type of locks needs a microcontroller to compare the entered code with the predefined code to open the lock.

555 timer electronic door lock. But because of large components it uses they are bulky and cannot be handy to use. But today here we are building the code lock. This controller requires a supply voltage of 5v dc.

The password is entered by making use of a keypad. Keypad and lcd are very commonly used input output devices respectively. Default password 1234 is stored in eeprom of pic microcontroller. Circuit diagram of electronics lock is shown below.

A similar type of electronic project is presented right below called electronic code lock circuit which ensures the use of four digits in code locking process and these codes are keyed in remotely. They are provided with an access control system. Raspberry pi digital code lock. This system allows the user to unlock the device with a password.

Pic16f877a microcontroller reads these inputs and compared it with a already stored password. So we have described a circuit which uses commonly available switches and a alarm to protect your almirah and other important documents. 16 x 2 lcd liquid. Via unveils ai system powered by qualcomm snapdragon 820e onion s omega2 dash is an iot platform for all in one touch driven projects gpio functions on stm8s using cosmic c and spl blinking and controlling led with push button eepd launches amd ryzen embedded nuc boards mini pcs audio equalizer tone control circuit with bass treble and mid frequency control using.

Electronic lock using pic microcontroller circuit diagram.