Comments on: Upgrade an electric lock keypad

By: joel

joel — Sat, 31 Oct 2009 23:23:50 +0000

hi do u know how to build or where to get that kind of device which has a card attached to it that when u put the card in it crackes the code en opens the door

By: Dano

Dano — Fri, 12 Dec 2008 23:30:28 +0000

I have one of these locks, and got tired of punching in numbers. purchased an rfid reader on ebay for $14, hooked it to the unlock pads on the inside portion of the lock and now I have an rfid unlock for the front door. (yeah, i know rfid isn’t perfect for security, but I’m not really a target.)

By: roosta

roosta — Mon, 01 Dec 2008 05:44:28 +0000

we have electric locks at out uni. to enter you use a card, but if the batteries are running low it flashes both red and green lights when you enter. then you know you godda change the batteries. i wanna find out how to open it though, cos then i can put some dead batteries in it, call maintinance to replace them, and get 6 brand new and free batteries!

By: chamunks

chamunks — Sun, 30 Nov 2008 21:58:12 +0000

This doesent need so much as a failsafe. They dont run on ultracaps they run on batteries. Unless the unlikely event of the hardware failing entirely without warning you can tell by the sound of the motor inside the device how the batteries are doing. If it sounds like its struggling to turn the lock than once you get inside you change the battery. But you could allways hardwire it into your house. Or just carry the key with you or try the whole hidden failsafe key under a rock trick.

By: Andrew

Andrew — Sun, 30 Nov 2008 21:03:53 +0000

So you’re saying this “key” is the failsafe?

By: rivetgeek

rivetgeek — Sun, 30 Nov 2008 21:02:20 +0000

All of these locks have a key bypass as well as some have an external connector for a 9 volt.

By: Del

Del — Sun, 30 Nov 2008 20:21:05 +0000

The key still works from the outside. This just attaches a motor to the lever on the inside of the door.

By: wb

wb — Sun, 30 Nov 2008 20:18:38 +0000

apparently none of you noticed the keyhole on the outside.

By: PvP

PvP — Sun, 30 Nov 2008 20:11:08 +0000

i see potentiality in this but when that battery runs out, it’s gg for getting into that room. would recommend a fail safe switch.

By: iben

iben — Sun, 30 Nov 2008 19:47:10 +0000

^^^ exactly what I was thinking!

By: Mad

Mad — Sun, 30 Nov 2008 19:33:07 +0000

All I have to ask is what happens when the batteries run out?