news subscribe now and get circuit diagrams, schematics and ptojects right in your inbox for free.

Electronic Combination Lock

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.

PCB for 20W Stereo Amplifier is Available Now. Click Here for Details.

0 comments:

Post a Comment

Share with me whatever in your mind. Comment is welcomed to all.

 

Any logo, trademark and project represented here is/are property of their respective owners © 2009 - 2012 ExtremeCircuits.Net