Electronic Lock with 4013


Posted on Sep 27, 2012

This circuit is very basic to build. To open a the lock which is connected to the K1 Load you must press each momentary switch in the correct sequence. The sequence used in this circuit is S1,S2,S3,S4. If any of the other switches are pressed the circuit will reset and you will need to start over. Depending on how you wire the switches, you can use any 4 switch combination.


Electronic Lock with 4013
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

USB Sound Card
500W 12V to 220V inverter
Fm demodulator
Universal motor control
Build a fully featured Arduino Thermostat
Simple Phono Preamplifier
Most Popular Circuits
BCD THUMBWHEEL SET 99 min TIMER
Nickel-cadmium battery fast charger temperature control circuit
15W Valve Modulator Amplifier circuit



Top