Electronic Code Lock System
For my assignment in my Computer Engineering course, I've decided to create a code lock system on a breadboard. Basically, you have to put in the correct code to open the lock. When the lock is open, you will see an LED light up. If the code is wrong, the LED will not light up.
Supplies are listed below.
Supplies
400 Point Breadboard (1) or another 830 point
555 Timer (1)
560 Ohm Resistor (4)
5mm LED (1)
4 Position Dipswitch (2) or 8 Position Dipswtich (1)
9V Battery (1)
Push Button (1)
Circuit/Schematic
This is the circuit for the code lock. For this circuit you need to correspond into series of each number. Once you have wired all the components to the corresponding position of the dipswitch, connect one terminal to pin 2 (the trigger) of the 555 and the other terminal should plug into ground. follow the circuit above. This circuit consists of DIP switch using which one can enter the code. The output can be turned ON only if the entered code is correct. Any deviation from the correct code will revoke access to controlling the output device. The code for this circuit is 11001001. Also make sure you wire in your 9V battery to the 830 Point breadboard.
Working Circuit
This is how the circuit should act once everything is set up correctly. If the circuit seems to not work, check on your wiring, LEDs, and resistors and make sure everything is in the correct spot.
Electronic Code Lock System Photos and Videos
The files I was supposed to upload were too big for this website so I uploaded them onto a google drive folder which you can view.