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 you are looking for something a little more secure to protect your belongings, you might be interested in the new electronic padlock which has been created by Master Lock, called the DialSpeed. The ...

Well, it only makes sense ... they’ve come up with an electronic replacement for the door lock key, so why not the combination padlock, too? That’s what Master Lock has done, with its new dialSpeed ...

Lock and key security has come a long way since Ancient Egypt. Over the centuries, Romans, the lever tumbler and Linus Yale’s pin tumbler all took the technology forward. Each was a significant ...

I’ve had a basic electronic lock on my door for a few months now, so when Poly-Control offered me the more sophisticated Bluetooth- and Z-Wave-enabled Danalock to review, I was curious to see what it ...

[rohare] has an interesting teardown for us over on the keypicking lock picking forums. It’s a Masterlock combination lock – specifically the Masterlock 1500eXD – and yes, it’s a completely electronic ...

SALTO Systems SVN-Flex is a feature that enables SALTO stand-alone electronic locks and cylinders to update user credentials directly at the door. This SALTO access control technology makes keyless, ...

[John Boxall] of Little Bird Electronics was thinking about combination locks, and how one might improve or at least change the way these locks work. Traditional combo locks can be implemented in a ...

People who travel may consider getting luggage or briefcases with combination locks to prevent valuable and sensitive items from getting stolen or misused. Luggage locks also act as a deterrent ...

This simple code lock circuit described here is of an electronic combination lock for daily use. It responds only to the roght sequence of four digits that are keyed in remotely. If a wrong key is ...

There’s a vulnerability in Master Lock branded padlocks that allows anyone to learn the combination in eight or fewer tries, a process that requires less than two minutes and a minimal amount of skill ...