I have asked for help in the forum regarding my circuit "One Transistor Based Lock" the feedback is really great, I have made this circuit about 3 times, now I have asked my teacher, he has allowed me to change the circuit, but it should be a lock. Now I should use Transistor, also now i am allowed to use a IC, but it shouldnt be a PIC. I am using a DPDT Relay 5V, when an incorrect combination is entered the buzzer will sound, and when the correct combination is entered a dc toy motor will be driven.
So please direct me towards a circuit which will fulfill my need
The Attached image of the circuit is the one which is worthless, the good people on this forum have pointed out the problems in the circuit diagram.
So please direct me towards a circuit which will fulfill my need
The Attached image of the circuit is the one which is worthless, the good people on this forum have pointed out the problems in the circuit diagram.
Attachments
-
20.4 KB Views: 21